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1. 1 To add a Domain to be excepted select Add in the Function drop down box 2 Enter the domain to be excepted 3 Click Execute Note To except all of a domain enter only the domain name without the www It is possible to except the domain prefix by putting in the appropriate protocol i e www or mail Note ComSifter will allow alphanumeric characters the P symbol and the symbol Additionally the length of the domain name may not exceed 127 characters 3 14 FILTER SETUP Delete Filter Setup gt Master Filter FullExceptionDomainList e Domains entered here will be completely unfiltered i e sitetoexcept com Function y Domain to Add Domain to Delete comsift com zl b Figure 3 11 Delete Domain from Full Exception List 1 To delete an excepted domain select Delete in the Function drop down box 2 Select the domain from the Domain to Delete 3 Click Execute 3 15 FILTER SETUP Full Exception URL List The full Exception URL List allows you to enter a URL that you do not want to be filtered This may be in response to a site being banned by the ComSifter or may be proactive such as a local home page or site that you deem safe If ComSifter sees this URL it will not filter any portion of it including its URLs unless the URL is listed in the Banned Domain List Add 1 To adda URL to be excepted select Add in the Function drop down box 2 Enter the URL to be
2. 3 Click Execute Filter Setup gt Master Filter Banned Smart Filter Groups Banned Smart Filter Groups may be Added or Deleted Function Activate Select Filter to Activate ads y R Sec iiia to No filters are active y Deactivate Execute Figure 3 8 Activating a Filter Deactivating Filters To deactivate a filter 1 Select Deactivate in the Function drop down box 2 Select the filter to deactivate in the Select Filter to Deactivate drop down box 3 Click Execute Filter Setup gt Master Filter Banned Smart Filter Groups Banned Smart Filter Groups may be Added or Deleted Function Activate gt Select Filter to Activate audio video y td Ie Execute Figure 3 9 Deactivating a Filter 3 10 FILTER SETUP Weighted CSphrase Filter Groups ComSifter has available ten Weighted CSphrase filter groups If a word or phrase is in the filter group the filter is activated and the word is found on a web page the CSphrase Sensitivity counter will increment by the weight assigned to the word phrase If there are any Good Words Phrases on the same page the CSphrase Sensitivity counter will decrement by the weight assigned to the word phrase After analyzing all the words on a page ComSifter will compare its Sensitivity Counter with the Sensitivity Threshold set for the individual filter If the threshold is exceeded the page will be banned Note The ac
3. Comsifter protect web users now sss Operators Guide Model CS 8 Pro Version 9 1 January 23 2006 The products described in this User s Guide are licensed products of Comsift Inc This User s Guide contains proprietary information protected by copyright and this User s Guide is copyrighted Comsift Inc hereafter referred to as Comsift does not warrant that the product will work properly in all environments and applications and makes no warranty and representation either implied or expressed with respect to the quality performance merchantability or fitness for a particular purpose Comsift has made every effort to ensure that this manual is accurate However information in this User s Guide is subject to change without notice and does not represent a commitment on the part of Comsift Comsift makes no commitment to update or keep current the information in this User s Guide and reserves the right to make changes to this User s Guide and or product without notice Comsift assumes no responsibility for any inaccuracies and omissions that may be contained in this User s Guide If you find information in this User s Guide that is incorrect misleading or incomplete we would appreciate your comments No part of this User s Guide may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying recording or information storage and retrieval systems for any purpose other than
4. User List Utilities Users gt User List Utilities Merge User Names from File Merge User Names from file located in File Manager Delete all user names from ComSifter This will delete all names from the user list Warning Warning All names will Y Enable Configure Active Directory Synchronization Enable Configure ComSifter to retrieve usernames from Active Directory Figure 2 9 User List Utilities User List Utilities allow a text based list to be merged into the User List A Delete all users command allows the User List database to be cleared in one command Both of these utilities should be used with caution as they are irreversible Note The Merge User Names from File and Delete all user names from ComSifter commands will not appear on the menu if User gt User Utilities gt Active Directory Integration is Enabled USERS Merge User Names from File This command allows an external text file with user names to be merged with the User List database This command is useful in installations where there may be hundreds of user names The requirements for the merge are The file must be ASCII Text with each line separated by a return CR LF Each line must have only the user name Amerge must be associated with a filter In large installations best practices would suggest building multiple merge files each can then be merged to a specific filter The file mus
5. 1 OVONVIOW EES Eeer 4 1 Configuring Words Phrases cssecceseeesseeeeseeeeeeeeeesseeseseenenseeeeeas 4 4 Restart ComSifter Filter 4 4 Editing Banned Words PhrasesS AAA 4 5 LEE 4 5 DG StS eneen ees Ee ceed etna Hit cedars eet 4 5 Editing Weighted Words Phrases AAA 4 6 Adicta dadas 4 6 RE 4 7 Searchin Asc a iaa 4 7 Contact lntorMatloN iaa ee A 1 Loc MON iii ts A 1 VUE EE A 1 A ee A 2 Technical SUpPport ee A 2 Filter ET B 1 INTRODUCTION Chapter 1 Introduction and Getting Started ComSifter stops the pornography the on line gambling the hate sites at the Internet gateway before the offensive material reaches web users You don t have to worry about web users surfing the Net With ComSifter if they accidentally misspell a word or use a search word that takes them to the dark side they will see a friendly message telling them the site has inappropriate content Features ComSifter offers the following features Stops access to pornography hate and gambling sites Blocks downloading of harmful and illegal files including mp3 music files Filters networks with hundreds of computers Intelligent filtering with CSphrase Filtering Technology is able to filter based on good words and bad words found on a web page Eight individually configurable filters Users may be set to the filter that best fits their filtering needs 500 000 site Blacklist updated daily or weekly Built i
6. Active Start Day and Sunday as the Active End Day Hours of Operation Defines active time of operation for this filter If th This filter is currently configured to be active from Active Start Time 00 00 z ActiveyEnd Time 00 00 Active Start Day Sunday gt Active End Day Sunday Figure 3 16 Permanently Off Permanently On To permanently turn on a filter select 00 00 as the Active Start Time and 24 00 as the Active End Time and select Sunday as the Active Start Day and Saturday as the Active End Day Hours of Operation Defines active time of operation for this filter If th This filter is currently configured to be active from Active Start Time 00 00 Active End Time 24 00 y Active Start Day Sunday zl Active End Day Saturday Figure 3 17 Permanently On 3 27 FILTER SETUP Warn and Go The Warn and Go feature allows a user to see a web site that was blocked but then to make a decision to view the site This is useful for administrators staff and others that would like to know that their destination is potentially unsafe If Warn and go is enabled it will allow viewing of a blocked site for the selected period of time Filter Setup gt Filter 1 non IDENTD Allows users in this filter group to view the contents of a banned page for a selected period of time Enable viewing for disabled Figure 3 18 Warn and Go
7. Enable 1 To enable Warn and Go select the time period that the user will be able to view the site 2 Click Execute Disable 1 To Disable Warn and Go select disable 2 Click Execute 3 28 WORDS PHRASES Chapter 4 Words Phrases Overview BO auf AOTAN A A O Figure 4 1 Initial Words Phrases Screen CSphrase Filtering Technology is used in ComSifter to analyze every word or phrase in a web page Before passing a web page to a user for viewing CSphrase technology 1 Analyzes the source including Metadata and assigns a numerical value to every word and phrase based on the weighting defined in Words Phrases 2 Analyzes what the user will see and assigns a numerical value to every word and phrase based on the weighting defined in Words Phrases 3 Good words phrases have a negative value while bad words phrases have a positive value These values are kept internally in a Sensitivity Counter 4 Upon completing the analysis CSphrase Technology compares the Sensitivity Counter with the Sensitivity Threshold for the users filter If the threshold is exceeded the Access Denied Page is given to the user and the event is logged in ComSifter Access log if the threshold is not exceeded the contents of the web page are shown 4 1 WORDS PHRASES There are twelve groups of bad words phrases and one group of good words and phrases The words phrases found within these groups determine how CSphrase Filter Tech
8. Upon clicking Execute the new user name will be added to ComSifters database Note ComSifter will add modify delete users from the database dynamically When one of these functions is performed other users will not be affected Users gt User List Add Modify Delete Single User Add Modify Delete Single User Name to Filter Group Function Add User New User Name charres Select Profile to be used Fiter 1 non IDENTD z by User Select User Name to be E m modified deleted sa R Figure 2 4 Add User 2 4 Modifying a User USERS This command will modify the filter the user is directed to In the following example charles1 filter assignment is being changed to Filter 1 Function must be set to Modify User Select Profile to be used by user should be set to the filter the new user will be directed to Select User Name to be modified deleted should be set to the Users Name Upon clicking Execute the filter will be changed Users gt User List Add Modify Delete Single User Add Modify Delete Single User Name to Filter Group Function Modify User New User Name Select Profile to be used N by User Filter 1 non IDENTD Select User Name to be charies1 Fiter3 El modified deleted Figure 2 5 Modify User 2 5 USERS Deleting a User This command will delete a user name from the database In the following example
9. amp Active Directory Users and Computers H IS Console Window Help Action View lle 2 aa xl ECKER Tree E A Active Directory Users E Gi center E Builtin E Computers Comsifter Domain cork Leg Comsifter 9 objects Com Sifter Critter 1 LB Filter 2 Brier 3 Filter 4 Y ForeignSecurity Beiter 5 LostAndFound LB Filter 6 E System E Users Beiter 7 Biter 8 User Security Group Global Global Global Global Global Global Global Security Group Security Group Security Group Security Group Security Group Security Group Security Group Global Figure 2 14 AD Groups 2 13 USERS 3 Add a new Domain User to the OU Comsifter The new user Full Name must be Com Sifter The new users username must be comsifter Assign a password to user comsifter 10 x Dire ES ano Dan oe a l e Create in center Comsifter First name Com Initials Last name Sitter Full name Com Sifter User logon name comsiter center User logon name pre windows 2000 eerten eomsitter coca Figure 2 15 Add Domain User comsifter Your Domain Controller is now prepared to accept queries from the ComSifter for user names and filter assignments 2 14 USERS Enable Configure Active Direct
10. furl URL ex Extensions appication type MIME anned Smart Fiter Groups may be Added or Deleted Weighted Smart Fiter Groups may be Added or Deleted Doman Filter Groups may be Added or Deleted _ URL Fiter Groups may be Added or Deleted sie eared bere wil be comple valero ts ie ntetoexcept com Domans entered here wil be excepted but Smart Fiter wil stil Ster ie siletoexcept com URL s entered here will be excepted but Smart Filter will sill filter ie sitetoexcept com pasttoexcept Domains entered here wil be banned ie sitetoban com URL s added here will be banned 10 ntetoban com partcban Downloadmg of files with these extensions will be banned ie exe Downloading of files with there MIME types will be banned 1e video mpeg Displays all Fiter Lists Displays a summary of all settings in the Master Filter Figure 3 1 Master Filter FILTER SETUP Restart ComSifter Filter Any changes made in the Master Filter will not become effective until the ComSifter Filter is restarted ComSifter is designed to allow you to quickly make multiple changes to filter settings and then apply the changes by restarting the filter Filter Setup gt Master Filter Restart ComSifter Filter Changes made in the filter will not take effect until the ComSifter Filter Service has been restarted This will take up to 30 seconds and will momentarily disrupt client Internet connections Execute D Note A
11. individual filters Each may be customized It is not required to use all eight filters Only use what you need The first four filters are pre configured as shown in Appendix B You may determine that these filter setups will meet your organizations requirements If not you may modify them or modify the remaining four filters There is also a master filter which affects all filters Review the CSphrase Filter Comsift suggests that you try the default settings before any modifications The words and phrases have been tested by Comsift and provide great protection while still allowing legitimate searches Have your user names ready and know what filters you want to direct them to Login Point your browser to https 192 168 1 9 10000 or the IP that has been assigned to ComSifter to connect to ComSifter After a few seconds you will be prompted with the ComSifter Login page Enter the user name and password you have been assigned 1 5 INTRODUCTION W You must enter a username and password to login Username admin Password p Clear Figure 1 1 Login Screen Upon entering a proper user name and password you will see ComSifters opening menu INTRODUCTION Navigating the ComSifter Main Menu geff et ee ee ASmin Her Werke sMaintenence Elke teller PIA ENTRE VESTE sa User List Unities Figure 1 2 Initial ComSifter Screen Icons and Modules ComSifter uses a module concept to allow certain functions to b
12. return its location Domains URLs extensions and MIME types may be searched Input formats are domain tld Domain domain tld url URL ext Extensions application type MIME Type of Search Exact Match Name Figure 3 2 Exact Match Search Filter Setup gt Master Filter Search Output from etc comsifter searchbadbl No words found in Comsift controlled blacklist A total of O instances of the name badsite com were found in the Comsift controlled blacklist The following usages of badsite com were found in the Administrator controlled lists badsite com found in filter Master Filter Banned Domain List zada eee N total of 1 instances of the name badsite com were found in the Administrator controlled lists End of report Figure 3 3 Exact Match Report The search report shows us that badsite com was not found in the ComSifter controlled blacklists but was found in the Master Filter Banned Domain List With this information we can then go to the Master Filter and look in the Banned Domain List for badsite com FILTER SETUP Begins With Begins With will search all filters and list for instances where the search term is matched at the beginning of a string This is useful when looking for domains that have county extensions or when looking for all the URLs that are listed within a domain Filter Setup gt Master Filter Search Will sea
13. the purchaser s personal use without the express written permission of Comsift Comsift ComSifter CSphrase and the Comsift logo are trademarks of Comsift Inc All other trademarks or registered trademarks listed belong to their respective owners Copyright 2003 2006 Comsift Inc All rights reserved FCC STATEMENT This product has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used according to the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which is found by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment or device Connect the equipment to an outlet other than the receivers Consult a dealer or an experienced radio TV technician for assistance TABLE OF CONTENTS Table of Contents ebben cin ita i Introduction and Getting Started oooonnnccccconiccccnnnnannnnnnnnnnnnns 1 1
14. the Function drop down box 2 Enterthe URL to be banned 3 Click Execute Note ComSifter will allow alphanumeric characters the P symbol and the symbol Additionally the length of the URL may not exceed 127 characters Delete 1 To delete a URL select Delete in the Function drop down box 2 Select the URL from the URL to Delete 3 Click Execute 3 20 FILTER SETUP Banned Extension List The Banned Extension List allows you to enter a file extension that you would like to prevent from being downloaded If ComSifter sees a user trying to download a file with the extension type the page will be banned Add 1 To add an extension select Add in the Function drop down box 2 Enter the extension to be banned 3 Click Execute Note ComSifter allows extensions of up to 5 characters This will accommodate MAC UNIX Linux and Windows operating systems It will also accommodate the current Java classes Delete 1 To delete an extension select Delete in the Function drop down box 2 Select the Extension from the Extension to Delete 3 Click Execute 3 21 FILTER SETUP Banned MIME Type List ComSifter has the ability to ban MIME Types MIME Types are used by web browsers to associate files of a certain type with helper applications that display files of that type A comprehensive listing of MIME Types may be found at the Internet Assigned Numbers Authority web site http www iana org ass
15. 249 Website Our website is at www comsift com If you re reading this document as a PDF file and are currently on line please click the URL above and you ll be transported to our website On our website you will find the latest information about our leading edge CONTACT INFORMATION solutions product announcements along with a form you can use for general information requests Sales Our friendly and knowledgeable sales staff is available to answer your sales related questions Hours of operation are from Monday through Friday 8 00am to 5 00pm Pacific Time at 866 875 1254 x 701 Technical Support Comsift provides technical phone support at 866 875 1254 x 702 Email support is available at support comsift com You can also fax your questions to us at our 24 hour fax number 408 265 5249 A 2 FILTER DEFUALTS Appendix B Filter Defaults Filter 1 Filter 2 Filter 3 Filter 4 8 Banned Porn Porn Porn Porn CSphrase Ads Ads Filter Groups Audio video Audio video Chat Custom a Custom a Custom b Custom b Drugs Drugs Gambling Gambling Games Games Hacking Hacking Hate Hate Mail Weighted Porn Porn Porn Porn CSphrase Ads Ads Filter Groups Audio video Audio video Chat Custom a Custom a Custom b Custom b Drugs Drugs Gambling Gambling Games Games Hacking Hacking Hate Hate Mail FILTER DEFAULTS Filter 1 Filter 2 Filter 3 Filter 4 8 Blacklist Porn Porn
16. Feature S iii iia 1 1 How ComSifter Works cccsecceeecesseeeeseeeeeeeeeesnaeseseeeeeeeeeseneseseeneneees 1 2 EE 1 2 Filtering EE tic yeaa escent ane 1 2 Navigating Through This Installation Guide ccceeeeeeeeeeees 1 3 Conventions in This User s Guide 1 4 Getting AAA 1 5 SC EE 1 5 Betore you Sai Aleta dan i anes 1 5 A a e a a i AA 1 5 Navigating the ComSifter Main Men 1 7 ICONS and Modules AA 1 7 Latest NEWS nia Edi Deele AER coles 1 8 On line User Manual ivuccian adri n 1 8 Beie lee 1 8 HESE Eege 2 1 A Ee 2 1 User Listaa eeh deer ae ee eee 2 3 Add Modify Delete Single User 2 4 Display user list by filter 2 7 Display user list alphabetically 0 cceceesceceeeeeeeceeeeeneeeeeeeees 2 7 User List Utilities eee cece ner anenee aii aie 2 8 TABLE OF CONTENTS Merge User Names from File 2 9 Delete all user names from ComSifter cccceeeeeeseeeeees 2 10 Preparing Active Directory for Synchronization 2 11 Enable Configure Active Directory Synchronization 2 15 Block User sce aniseed acs Pb apt fai e 2 18 Block Computer 2 20 Bypass User or Computer 2 22 Bypass USET ensi niara dd Ee 2 22 Bypass Computer 2 24 A A A telat ota edd 3 1 ere 3 1 ED da UE 3 3 Restart ComSifter Filter 3 4 O ET 3 5 Exact EE 3 6 Begins Wits E 3 7 ANY MAC Are crest ees 3 8 Banned CSphrase Filter Groups 3 9 Activating sg TC 3 10 Deactivating Filter 3 10 Weighted CS
17. List All user names previously entered will be deleted from the database The command is irreversible If you are migrating from User Names entered using Users gt User List gt Add Modify Delete User to Active Directory Integration it is advisable to create a backup before proceeding Host Domain Name In this field enter the name of the Domain Controller This may be A Fully Qualified Domain Name myschool com A non qualified name consisting of the machine name followed by the non qualified domain name separated by a period In the screen shot about the machine name is cube1 the non qualified name is center thus cube1 center An IP address 192 168 1 2 2 16 USERS Distinguished Name In this field enter the Distinguished Name of the server as follows If the server name is fully qualified as in myschool com then enter DC myschool DC com note the comma is not a typo If the server name is not fully qualified then enter just the domain name i e DC myschool AD User Name In this field enter the Common Name CN of the Domain User Com Sifter this was defined in the previous section Preparing Active Directory for Integration Note This is the users full name not their username or login name AD User Password In this field enter the password you assigned to Domain User comsifter this was defined in the previous section Preparing Active Directory for Integration 2 17 U
18. Porn Porn Domain Filter Ads Ads Groups Audio video Audio video Chat Drugs Drugs Gambling Gambling Games Games Hacking Hacking Hate Hate Mail Full Porn Porn Porn Porn Exception Ads Ads Domain List Audio video Audio video Chat Drugs Drugs Gambling Gambling Games Games Hacking Hacking Hate Hate Mail B 2 FILTER DEFUALTS Filter 1 Filter 2 Filter 3 Filter 4 8 Banned asf asf Extension avi avi List bin bin bz2 bz2 cdr cdr cpl cpl cue cue dll dll dmg dmg exe exe 07 9Z hip hip box box inf inf ini ini ins ins iSO IsO isp isp mda mda mdb mdb mde mde mdn mdn mdt mdt mdw mdw mdz mdz mp3 mp3 mpeg mpeg msc msc mst mst 099 099 Ops Ops otf otf pcd DC pif pif DI DI FILTER DEFAULTS Filter 1 Filter 2 Filter 3 Filter 4 8 ar tar reg reg SCT SCT SC sct sea sea sh sh shs shs Sit sit smi smi SyS Sys Jar tar tgz tgz vxd vxd Wwmf wmf Zip Zip Sensitivity 200 100 150 200 Hours of Always On Always On Always On Always On Operation Warn and Go Disabled Disabled Disabled Disabled B 4
19. SERS Block User or Computer ComSifter has the capability to block by User Name or by Computer IP address This feature is useful in instances where you do not want a user or a computer to have access to the Internet Block User The Block User command allows you to block a user by User name or to Unblock a user by User Name Enable Block To Block a user Set Function to Enable Block Select User Name to be Blocked Click on Execute Users gt Block User or Computer Block User Allows a user to be completly blocked from Internet access The user must have an entry in the User List Function Enable Block y Select User Name to be e Blocked RE R Select User Name to be El Un Blocked Figure 2 17 Blocking a User Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users during the restart 2 18 USERS Disable Block To remove a block Set Function to Remove Block Select User Name to be Un Blocked Click on Execute Users gt Block User or Computer Block User Allows a user to be completly blocked from Internet access The user must have an entry in the User List Function Remove Block y Select User Name to be Lane El Blocked Select User Name to be Un Blocked cherlest Figure 2 18 Un Blocking a User Note Upon clicking Execute ComSifte
20. Setup gt Master Filter Display Summary Output from command Banned Smart Filter Groups De Ads is enabled Porn is enabled Veighted Smart Filter Groups Ads is enabled Porn is enabled Blacklist Domain Filter Groups Porn is enabled Blacklist URL Filter Groups Porn is enabled Full Exception Domain List comsift com Full Exception URL List Empty Partial Exception Domain List Empty Figure 3 13 Display Summary Report 3 24 FILTER SETUP Individual Filters Individual filters are configured in the same manner as the Master Filter Please refer to the previous section for configuration details with the following exceptions Individual filters do not have a Change Filter Name Command Individual Filters have three additional commands Sensitivity Level Time of Day TOD operation and Warn and Go Change Sensitivity This command will set the CSphrase Sensitivity Level for the filter If a word or phrase is in the filter group the filter is activated and the word is found on a web page the CSphrase Sensitivity counter will increment by the weight assigned to the word phrase If there are any Good Words Phrases on the same page the CSphrase Sensitivity counter will decrement by the weight assigned to the word phrase After analyzing all the words on a page ComSifter will compare it s Sensitivity Counter with the Sensitivity Threshold set for the individual filter If the threshold is exceeded the page wi
21. URL is a subset of a domain and is typically denoted by the symbol If a URL is in the filter group and the filter is activated the site will be banned Note These groups are maintained by Comsift and any changes are made by Comsift by way of the daily or weekly update dependent on your service contract If you find a site that you do not believe should be banned the site may be excepted by placing it in the Exception Domain List These groups may be activated or deactivated depending on the requirements of your installation The groups are Ads Audio video Chat Drugs Gambling Hate Hacking Mail In addition to the above list there is a pornography group This group is permanently enabled 3 13 FILTER SETUP Full Exception Domain List The full Exception Domain List allows you to enter a domain that you do not want to be filtered This may be in response to a site being banned by the ComSifter or may be proactive such as a local home page or site that you deem safe If ComSifter sees this domain it will not filter any portion of it including its URLs unless the URL is listed in the Banned Domain List Add Filter Setup gt Master Filter Full Exception Domain List Domains entered here will be completely unfiltered i e sitetoexcept com Function ada gt Domain to Add E A AKAKAKAK Domain to Delete z Figure 3 10 Add Domain to Full Exception List
22. application type MIME Type of Search Any Match y Name Joadsite com Execute Figure 3 6 Any Match Search Compite comtroiled Binckisat in filter Raster Filter Banned URL List ilter Banned Demain List iiter Banned Donain Lint R Figure 3 7 Any Match Report In the example we see that anybadsite com reallybad was found in the Master Filter Banned URL List badsite com was found in the Master Filter Banned Domain List badsite com au was found in the Master Filter Banned Domain List FILTER SETUP Banned CSphrase Filter Groups ComSifter has available ten Banned CSphrase filter groups If a word or phrase is in the filter group the filter is activated and the word is found on a web page the page will be banned Note The actual words phrases that are in each of these filter groups are located in the Words Phrases category These groups may be activated or deactivated depending on the requirements of your installation The groups are Ads Audio video Chat Custom A Custom B Drugs Gambling Hate Hacking Mail In addition to the above list there are two groups that are permanently engaged These are Pornography Good Words Phrases 3 9 FILTER SETUP Activating Filters To activate a filter 1 Select Activate in the Function drop down box 2 Select the filter to activate in the Select Filter to Activate drop down box
23. ase Filtering to determine if the site is appropriate based on good words phrases and bad words phrases This feature may be useful in instances where you want a URL to be accessible but at times the content may be questionable When the content is questionable CSphrase filtering will block the page Add 1 To adda URL select Add in the Function drop down box 2 Enter the URL to be partially excepted 3 Click Execute Note ComSifter will allow alphanumeric characters the P symbol and the symbol Additionally the length of the URL may not exceed 127 characters Delete 1 To delete a URL select Delete in the Function drop down box 2 Select the URL from the URL to Delete 3 Click Execute 3 18 FILTER SETUP Banned Domain List The Banned Domain List allows you to enter a domain name that you want to be banned Add 1 To adda domain select Add in the Function drop down box 2 Enter the domain to be banned 3 Click Execute Note ComSifter will allow alphanumeric characters the P symbol and the symbol Additionally the length of the domain name may not exceed 127 characters Delete 1 To delete a domain select Delete in the Function drop down box 2 Select the Domain from the URL to Delete 3 Click Execute 3 19 FILTER SETUP Banned URL Filter List The Banned URL List allows you to enter a URL name that you want to be banned Add 1 Toadd a URL select Add in
24. ating through this document we have added blue colored hot links to the Table of Contents index chapters and appendixes in this User s Guide Clicking one of these hot links automatically moves you to that location in this User s Guide For example if you click one of the blue colored chapter or appendix titles in the previous section you automatically move to the first page in that chapter or appendix 1 3 INTRODUCTION Conventions in This User s Guide This User s Guide uses the following conventions Notes are information requiring extra attention Tips are helpful procedures or shortcuts for simplifying a task Important is information that if not followed may affect the proper operation of the product Warning is information that if not followed or understood may affect the operation of the product the operating system or the system configuration Bold is used to denote an item that is to be clicked or selected 1 4 INTRODUCTION Getting Started Pre requisites This manual is part two of a two part series of ComSifter manuals Before the functions described in this manual are performed the following items should have been completed by your System Administrator 1 ComSifter installed on your network with the proper network settings 2 ComsSifter Admins configured and passwords assigned Before you start Determine what each filter will do There are eight
25. charles1 is being deleted Function must be set to Delete User Select User Name to be modified deleted should be set to the Users Name Upon clicking Execute the User Name will be deleted Users gt User List Add Modify Delete Single User Add Modify Delete Single User Name to Filter Group Function Delete User y New User Name y ete to be used Tee nonDENTD 7 Select User Name to be er er modified deleted Figure 2 6 Delete User USERS Display user list by filter This command will display by filter all the User Names in the ComSifter Database Users gt User List Display user list by filter Output from command Filter Group Filter 1 non IDENTD bsmith guest jthompson Filter Group Filter 2 fred2 sallyl Filter Group Filter 3 charlesi Filter Group Filter Bn administrator teacherl teacher2 Figure 2 7 User Names by Filter Display user list alphabetically This command will display alphabetically all the User Names and their filter in the ComSifter Database Users gt User List Display user list alphabetically Output from command administrator Filter 5 bsmith Filter 1 non IDENTD charlesi Filter 3 fred2 Filter 2 R guest Filter 1 non IDENTD jthompson Filter 1 non IDENTD sallyi Filter 2 teacher1l Filter 5 teacher2 Filter 5 Figure 2 8 User Names Alphabetically USERS
26. de are available at this link Logout When you complete your session with Comsift click this link to log out If you do not ComSifter will log you out after fifteen minutes of idle time 1 8 USERS Chapter 2 Users In this chapter we will discuss the User category and the four associated modules Overview ComsSifter is able to route individual web users to different filters based on their user name This is the same user name that was used to login to the computer they are currently using The User List may be populated by Individual entries in this mode each user name must be entered into the database and a filter associated with the user name File Import in this mode the user names may be imported from a text base file Active Directory Integration in this mode ComSifter will read a defined Active Directory located on a Windows 2000 2003 server and copy the names and filter settings from Active Directory to the ComSifter database Based on the user name ComSifter will Route the user through the proper filter Optionally block a computer based on user name or computer IP from using the Internet Optionally bypass a computer from all filtering based on user name or computer IP 2 1 USERS Block User or Computer Bypass User or Computer Figure 2 1 Initial User Screen 2 2 USERS User List The User List is the database that ComSifter uses to determine which filt
27. e performed by different ComSifter Admins A module may contain one or more commands that may be performed by the ComSifter Admin configuring the system Modules are grouped within Categories Categories are represented by Icons at the top of each page There are seven categories VA Admin this category includes three modules and is covered in the Installation Guide O Network this category includes six modules and is covered in the Installation Guide Maintenance this category includes eleven modules and is covered in the Installation Guide Filter Setup this category includes ten modules and is covered in this Operators Guide 1 7 INTRODUCTION Words Phrases this category includes fourteen modules and is covered in this Operators Guide Users this category includes four modules and is covered in this Operators Guide Latest News This link will take you to a special place on the Comsift website where recent information discovered by Comsift is posted Web Site operators are constantly changing their sites and many times especially with Advertising they will route through ad servers without any information to the user that they are doing this Visiting this link may be helpful in certain troubleshooting situations such as why did a site come through last week but this week it is blocked On line User Manual The most recent version of this guide and the Installation Gui
28. ect User Name to Remove Bypass Click on Execute Users gt Bypass User or Computer Bypass User Allows a user to completely bypass the ComSifter Filter The user must have an entry in the User List Function Remove Bypass y Select User Name to Enable Bypass SE El Select User Name to Remove Bypass SE El Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users 2 23 USERS Bypass Computer The Bypass Computer command allows you to bypass a computer based on the computers IP address Enable Bypass To bypass a computer Set Function to Enable Bypass Enter the IP address of the computer to be bypassed in Select IP to Enable Bypass Click on Execute Users gt Bypass User or Computer Bypass Computer Allows a computer to completely bypass the ComSifter filter based on the computers IP Function Enable Bypass y Select IP to Enable ELE Bypass N Select IP to Remove Bypass Figure 2 22 Enable Computer Bypass Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users 2 24 USERS Remove Bypass To remove a bypass Set Function to Remove Bypass Select IP to Remove Bypass Click on Execute Users gt Bypass User or Compute
29. er each individual user will use User List allows you to Add Modify Delete a single user Display user list by filter Display user list alphabetically Users gt User List Add Modify Delete Single User Add Modify Delete Single User Name to Filter Group Display user list by filter Displays the user list sorted by filter Display user list alphabetically Displays the user list sorted alphabetically Figure 2 2 User List Commands w o AD Integration Note The Add Modify Delete Single User command will not appear on the menu if User gt User Utilities gt Active Directory Integration is Enabled Users gt User List Display user list by filter Displays the user list sorted by filter Display user list alphabetically Displays the user list sorted alphabetically Recconchroniee User Lit cuting this command will force ComSifter to resync with the Active Dirg eeng ly e Directory Figure 2 3 User List Commands with AD Integration USERS Add Modify Delete Single User Adding a new User This command will add a new user to the database In the following example new user charles1 one is being added Function must be set to Add User New User Name must be set to the users User Name this is the same name the user used to login to their computer Select Profile to be used by user should be set to the filter the new user will be directed to
30. excepted 3 Click Execute Note ComSifter will allow alphanumeric characters the P symbol and the symbol Additionally the length of the URL may not exceed 127 characters Delete 1 To delete an excepted URL select Delete in the Function drop down box 2 Select the URL from the URL to Delete 3 Click Execute 3 16 FILTER SETUP Partial Exception Domain List The Partial Exception Domain List allows you to enter a domain that you do not want to be completely excepted but instead allow CSphrase Filtering to determine if the site is appropriate based on good words phrases and bad words phrases This feature may be useful in instances where you want a site to be accessed but at times the content may be questionable When the content is questionable CSphrase filtering will block the page Add 1 To adda domain select Add in the Function drop down box 2 Enter the domain to be partially excepted 3 Click Execute Note ComSifter will allow alphanumeric characters the P symbol and the symbol Additionally the length of the domain name may not exceed 127 characters Delete 1 To delete a domain select Delete in the Function drop down box 2 Select the domain from the Domain to Delete 3 Click Execute 3 17 FILTER SETUP Partial Exception URL Filter List The Partial Exception URL List allows you to enter a URL that you do not want to be completely excepted but instead allow CSphr
31. found on the requested web page After analyzing the complete web page CSphrase Filter will compare its Sensitivity Counter with the Sensitivity Threshold If the threshold is exceeded the user will receive an Access Denied Page If the threshold is not exceeded the user will be allowed to view the web page 4 6 Words Phrases gt Gambling Edit Weighted Smart Filter Words Phrases Words Phrases defined here and if the group is enabled in Filter Setup will cause the Sensif exceeds the Sensitivity Threshold the page will be banned Words Phrases may be Added or Deleted and weighting assigned or adjusted Word Phrase must be surrounded by A space before and after a word phrase will find an exact match ie badword No space before or after the word phrase will match anywhere found i e badword A comma between word phrases will look for the occurance of both words phrases on al Function Add Word Phrase Add gambling Weight 5 y Delete Figure 4 5 Editing Weighted Words Phrases To add a word to the Weighted CSphrase Word Phrase list Select Add Word Phrase in the Function drop down box Enter the Word Phrase to be banned following the syntax rules described at the beginning of this chapter Assign a weight to the word phrase Click Execute WORDS PHRASES Delete To remove a word in the Weighted CSphrase Word Phrase list 1 Select Delete Word Phrase in the F
32. fter will make an LDAP query to the server and retrieve a list of filters and users in that filter Any changes made to the users in Active Directory will be reflected in ComSifters User List 2 11 USERS Before this feature may be enabled the following changes must be made to Active Directory 1 Add an Organizational Unit OU under the root of the domain This OU must be named Comsifter Active Directory Users and Compute 10 x IS Console Window Help 1 x Action view Il EN MEE 22 7 Se Tree center 16 objects Active Directory Users Name Type Description 4 gp AR kins builtinDomain Delegate Control tainer Default container for upgr Find janizational Unit Connect to Domain janizational Unit Default container for new Connect to Domain Controller tainer Default container For secu Operations Masters AndFound Default container for orph Computer Builtin system settings All Tasks gt Contact Default container for upgr z Group View New Window from Here Printer Refresh User Export List Shared Folder Properties Create anew Help Name Comsifter R Figure 2 13 OU Naming 2 12 USERS 2 Under the OU Comsifter add a new group s using the exact name of the filter label in ComSifter by default filter names in ComSifter are labeled Filter 1 Filter 2 Filter
33. ges that are offensive This feature accounts for ComSifter s remarkable accuracy If the content passes through both types of filtering ComSifter allows the page to be loaded on the user s computer If either of the filters disallow a Denied Access Denied page is sent to the user s computer All this is done in a fraction of a second with no delay seen by the user 1 2 INTRODUCTION Using This Operators Guide This Operators Guide is designed for the person that will be operating the ComSifter network content filtering device in a day to day environment A companion guide the Installation Guide describes how to install and configure ComSifter The following list summarizes the chapters and appendixes that follow this chapter Chapter 2 Users describes how to Add Modify Delete users to the database Chapter 3 Filter Setup describes how to configure the Master Filter and each individual filter Chapter 4 Words Phrases describes the configuration of ComSifters CSphrase filter Appendix A Contact Information provides contact information including telephone numbers address email and hours of operation Appendix B Filter Defaults provides default information for the first four filters Navigating Through This Installation Guide This User s Guide contains all the information you need to install use and troubleshoot ComSifter To assist you in navig
34. ignments media types Add 1 To adda MIME Type select Add in the Function drop down box 2 Enterthe MIME Type to be banned 3 Click Execute Note ComSifter allows MIME Types in the format Xxx yyy Delete 1 To delete a MIME Type select Delete in the Function drop down box 2 Select the MIME Type from the MIME Type to Delete 3 Click Execute 3 22 FILTER SETUP Change Filter Names ComSifter allows the name of each filter to be changed to meet local requirements To change a filter name 1 Select the name of the Existing Filter 2 Enter the name of the new filter in New Filter Name 3 Click Execute Filter Setup gt Master Filter Change Filter Name Allows changing individual filter names Existing Filter Filter 2 bd New Filter Name Staff h Figure 3 12 Change Filter Name Note ComSifter sorts the Filter Setup alphabetically Changing a filter name will change this sort Although you can change the name of Filter 1 it will always carry the suffix non IDENTD 3 23 FILTER SETUP Display Summary Display Summary displays a report of the configuration of the Master Filter This report is useful for understanding at a glance how the Master Filter is configured It includes CSphrase Filter Groups that are active Blacklist Filter Groups that are active All domains URLs extensions and MIME Types that are in there respective lists Filter
35. ll be banned Filter Setup gt Filter 1 non IDENTD Change Sensitivity Allows changing the Smart Filter threshold Sensitivity Level y Figure 3 14 Sensitivity Threshold 3 25 FILTER SETUP Sensitivity Level Guidelines Comsift suggests the following guidelines for Sensitivity Levels Age Group Sensitivity Level Preschool 50 Grade School 100 High School 150 Adult 200 Hours of Operation Each Filter has an Hours of Operation command This command allows access to the Internet to be allowed or denied If allowed normal filtering will take place If denied the user will receive a Banned Message stating that the Internet is not active due to the Hours of Operation Schedule Filter Setup gt Filter 1 non IDENTD Hours of Operation Active Start Time 08 00 Active End Time 17 00 DI Active Start Day Monday D Active End Day Defines active time of operation for this filter If the filter is not active access to the Internet will This filter is currently configured to be active from 00 00 until 00 00 Sunday through Sunday Figure 3 15 Hours of Operation 3 26 FILTER SETUP Normal Operation Enter the desired Start End Times Start End Days and click Execute Permanently Off To permanently turn off a filter select 00 00 as the Active Start Time and 00 00 as the Active End Time Select Sunday as the
36. n DHCP server Built in Caching Proxy Configurable Denied Access Page Easy to install no required maintenance Unlimited licensing is standard 1 1 INTRODUCTION How ComSifter Works Overview ComSifter is a hardware and software set it and forget it device that plugs into your network and redirects all Internet traffic to itself Only the ComSifter communicates directly with the Internet Internet information for all other computers e g Windows Apple Linux must first go through the filter system built into the ComSifter Filtering System ComSifter CS 8 incorporates eight individual filters Each filter may be individually configured for the users computers that access the filter Additionally a global filter allows configuration system wide When the user computer accesses a filter two types of filtering are performed First ComSifter compares the requested site with its blacklist to determine if the address has already been deemed inappropriate If the site is blacklisted the user will receive a Denied Access Page and will not be able to view the site Second if the site is not blacklisted ComSifter will scan every word on the Internet page using its CSphrase Filtering Technology looking for words that indicate inappropriate content The context of these words is then analyzed to determine if the page should be blocked This greatly reduces the number of false positives while blocking those pa
37. name of the user that is currently logged into that computer ComSifter compares the returned User Name with the User List and determines the filter that was associated with the User Name ComSifter then fetches the requested web page and applies filtering rules based on the users filter and the Master Filter Note If the requesting computer does not respond to the IDENTD request ComSifter will assign the requesting computer the username nousername and by default route it to the non IDENTD filter This may be changed by adding nousername to the User List and assigning nousername to the filter of your choice 3 2 FILTER SETUP Master Filter Items entered in the Master List affect all users If you have a domain URL extension or MIME type that you either want to ban or except system wide it should be entered in the Master List Additionally the Master List includes A utility to restart the ComSifter Filter service A powerful search facility A command that allows filter names to be changed A report that lists all settings in the Master List Changes made in the filter will not take effect until the ComSifter Fiker Service has been restarted 3 Ter will take up to 30 seconds and will momentarily disrupt chert Internet connections Will search all bsts for the entered name and retum tts Iocabon Domans URLs extensions and MIME types may be searched Input formats are domain tid Domain domain
38. nology will analyze each web page The bad words phrases are found in Ads Audio Video Chat Drugs Gambling Games Hacking Hate Mail Pornography Custom A Custom B Within the twelve bad groups there are Banned Words Phrases and Weighted Words Phrases In addition to the twelve bad groups there is a good words phrase group This group will modify what is found in the bad groups As an example if a web site contains the word breast CSphrase Filter will increment its Sensitivity counter by 5 If on the same page it sees the word research it will decrement its Sensitivity counter by 20 When configuring words phrases the following conditions apply The word phrase must be enclosed in parenthesis H an exact match of the word phrases is required then a space must be placed before and after the word In the example if we want to only ban gambling then the proper format would be gambling Thus if the web page said Visit 4 2 WORDS PHRAS our casino to gamble at your favorite games the page would be banned If a match of a word beginning with gambling is required then the proper format would be gambling Thus if the web page said Solve your gamblingfever the page would be banned If a match of a word ending in with gambling is required then the proper format would be gambling Thus if the web page said Casinogambling the page would be banned If any match of the wo
39. ory Synchronization Users gt User List Utilities Enable Configure ComSifter to retrieve usernames from Active Directory Enable Active Directory Yes C No Host Domain Name example com fcubelcenter st Distinquished Name DC example DC com DC center AD User CN Bill Smith CN Com Siter AD User Password E Figure 2 16 AD Configuration ComSifter Active Directory Integration operates by performing an LDAP query to the Domain Controller H successful ComSifter will Replace the existing user list with the user names and associated filters retrieved from Active Directory Restart the ComSifter Filter Service without affecting existing connections ComSifter will update its Active Directory automatically every hour eight 8 minutes after the hour A forced resync may be performed from Users gt User List gt Re synchronize User List To properly query the Domain Controller ComSifter must know the following information 2 15 USERS Enable Active Directory In this field click Yes to enable Active Directory Integration or no to disable Active Directory Integration Warning Use this command with caution Active Directory Integration and User List gt Add Modify Delete User are mutually exclusive If Active Directory Integration is enabled and there has been a successful query to the Domain Controller the existing user list is replaced by the Active Directory User
40. phrase Filter Group ccsceseeeeeeeeeeeeeeeeeeneeeeees 3 11 Blacklist Domain Filter Groups 3 12 Blacklist URL Filter Groupe oooococonccccncccnnonccononanonaccnonnnnnnrnnnancncnna 3 13 Full Exception Domain Uet cnn 3 14 Alai rece eet 3 14 Dalt nit eege 3 15 Full Exception URL et 3 16 ee A 3 16 TABLE OF CONTENTS Delete cesses Jessen O Padus eit PAE AEA 3 16 Partial Exception Domain List ee eecceeeeeeeeeeeeeneeeeeeeseeeeeeaaes 3 17 AG EEN 3 17 RE 3 17 Partial Exception URL Filter List ce ecceeeeeeeeeeeeeeneeeeeeaaes 3 18 Lee WEE 3 18 NEE 3 18 Banned Domain List nerisniosiiiniieru inia aA 3 19 Delete sis e e ee E e Abas ove ee aa e EE ee 3 19 Banned URL Filter Uiei aaa AE NaS 3 20 O 3 20 Del e E A id 3 20 Banned Extension List eccccceeeeccceeeseceeeeeeeeeeeeseeeceeeeneeaeeeeneee 3 21 NA A A E 3 21 Delete ica lt 3 21 Banned MIME Type iert 3 22 Ada ten e a alt rd te dls e te e 3 22 RTE 3 22 Change Filter Names AAA 3 23 Display SUMMA EE 3 24 Individual Filters c sccceeseeeeseeeeeeeeeeeeeeseseeeeeseseeeeeseseeeenseseeeenes 3 25 Change Sensitivity cccccccceessseeeeneeceeeeeeeaeseeneeseeeeesaeeesaaeeninees 3 25 Sensitivity Level Guidelines cceccccceteeeeseeeeeeeeeseeeeeeeeeenees 3 26 Hours Of Operation 3 26 NTRA 3 27 Permanently Off anoi a aneas 3 27 Permanently Om 3 27 Warn and GO DEE 3 28 TABLE OF CONTENTS ENEE 3 28 NEIE 3 28 Words Ptas Sanar ad 4
41. r Bypass Computer Allows a computer to completely bypass the ComSifter filter based on the computers IP Function Remove Bypass Select IP to Enable a Bypass Select IP to Remove rez1681 211 sl Bypass N Figure 2 23 Remove Computer Bypass Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users 2 25 FILTER SETUP Chapter 3 Filter Setup Overview ComSifter has eight filters that may be individually configured Each filter allows customization of The good and bad words that will be used in CSphrase Filtering What blacklist categories will be included in the filter What additional domains and URLs are to be fully or partially banned What domains and URLs are to be excepted The CSphrase sensitivity threshold Activation and access time for the Warn and Go feature ATI A A ERT In addition to each filter all of the groups and lists selected in the Master Filter will be applied The Master Filter settings are used when a setting is required on all filters The filter that will be used for each user request is determined by the User Name and Filter defined in the User List When a request 3 1 FILTER SETUP is made by a client computer the ComSifter first sees the IP of the requesting computer and queries the computer for its IDENTD The requesting computer returns the
42. r Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users during the restart 2 19 USERS Block Computer The Block Computer command allows you to block a computer by the computers IP address Enable Block To Block a computer Set Function to Enable Block Enter the IP address of the computer to be blocked in Select IP to be Blocked Click on Execute Users gt Block User or Computer Block Computer Allows a computer to be blocked based on the computers IP Function Enable Black gt Select IP to be Blocked 192168124 N Select IP to be Un Blocked E Figure 2 19 Block Computer by IP Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users during the restart 2 20 USERS Disable Block To remove a block Set Function to Remove Block Select IP to be Un Blocked Click on Execute Users gt Block User or Computer Block Computer Allows a computer to be blocked based on the computers IP Function Remove Blockih4 Select IP to be Blocked Select IP to be Un 37168 1245 Blocked 192 168 1 245 N Figure 2 20 Removing Blocked Computer by IP Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt othe
43. r Internet users during the restart 2 21 USERS Bypass User or Computer ComSifter has the ability to bypass a computer or a user from all filtering This feature is useful for administrator workstations or any computer on the network that does not need to be filtered Note This bypass affects only the Filter Setup and Words Phrases It does not bypass the port filtering done by Port Blocker Port Blocker settings affect all users Bypass User The Bypass User command allows you to bypass a user by user name or to remove a bypass by user name Enable Bypass To bypass a user Set Function to Enable Bypass Select User Name to Enable Bypass Click on Execute Users gt Bypass User or Computer Bypass User Allows a user to completely bypass the ComSifter Filter The user must have an entry in the User List Function Enable Bypass DI Select User Name to sallyi Filter Enable Bypass Ge Select User Name to administrator Filter 5 Remove Bypass bsmith Filter 1 non IDENTD charles Filter 3 fred2 Filter 2 guest Filter 1 non IDENTD jthompson Filter 1 non IDENTD teacher Filter 5 teacher2 Filter 5 Figure 2 21 Enable User Bypass 2 22 USERS Note Upon clicking Execute ComSifter Filter Service will restart automatically This may take up to 30 seconds and will disrupt other Internet users Remove Bypass To remove a bypass Set Function to Remove Bypass Sel
44. rch all lists for the entered name and return its location Domains URLs extensions and MIME types may be searched Input formats are domain tld Domain domain tld url URL est Extensions application type MIME Type of Search Begins With Name badsite com Figure 3 4 Begins With Search Filter Setup gt Master Filter Search Output from etc comsifter searchbadbl No words found in Comsift controlled blacklist A total of O instances of the name badsite com were found in the Comsift controlled blacklist The following usages of badsite com were found in the Administrator controlled lists badsite com found in filter Master Filter Banned Domain List badsite com au found in filter Master Filter Banned Domain List 4 total of 2 instances of the name badsite com were found in the Administrator controlled lists End of report Figure 3 5 Begins With Report In the example we see that badsite com was found in the Master Filter Banned Domain List We see that badsite com au was also found in the same list FILTER SETUP Any match Any Match will match the search word if it is found anywhere in the string Filter Setup gt Master Filter Search Will search all lists for the entered name and return its location Domains URLs extensions and MIME types may be searched Input formats are domain tld Domain domain tld url URL ext Extensions
45. rd gambling is required the proper format would be gambling Thus if a web page said Casinogamblingfever the page would be banned A further refinement of word phrases is possible by looking for multiple words phrases This is accomplished by separating the words phrases with a comma If we wanted to ban any web page that contained the word casino and the word gambling the proper format would be casino gambling Thus if the web page said our casino has gambling for all games the page would be banned ES 4 3 WORDS PHRASES Configuring Words Phrases Changes made in the Sker will not tales effect until the ComSiter Fiter Service has been restarted This wil take up to 30 seconds and will momentanly disrupt cSert Intemet commections WordelPtrases defined here and the group is enabled n Fiker Senap wil cause any web page to be banned d Ge word phrase is found Worde Pheases mag be Added or Deleted Word Phrase must be surrounded by 3 A space before and after a word phrase wil find an exact matchie badword No space before or after the word phrase will match anywhere found 1 e badword A coma 7 between wordiphrazes will look for the occurance of both words ptrases on a page ie badword badword2 Words Phrases defined here and the group is enabled in Fiker Setup will cause the Sensitivty Weaght of a page to increase if the word phrase is found If the weight exceeds the Senn
46. restart may take up to 30 seconds to complete During this time all Internet connections will be disrupted 3 4 FILTER SETUP Search ComSifter incorporates a comprehensive search facility that allows you to search for all instances of a domain URL extension or MIME type The search will check all filters and all lists for the search term and return the filter and list in which the search term was found Search is useful when a site domain extension or MIME type is banned and you need to know why and where it is banned Search is also useful if you believe a site domain extension or MIME type should be banned and it is not Note Search will search through all filters and lists This includes the blacklist that Comsift controls A search report will show if an item was found in the Comsift controlled blacklist or the administrator controlled lists Items in the Comsift controlled blacklist are not accessible or configurable If an item is banned and you do not want it banned you must except the item by using the Exception Domain List or the Exception URL List There are three types of search Each is explained in detail in the following paragraphs 3 5 FILTER SETUP Exact Match Exact Match will search for an exact match of the search term In the following example a search for badsite com is performed Filter Setup gt Master Filter Search Will search all lists for the entered name and
47. t be named users txt The file must be previously uploaded to ComSifter using File Manager Upon clicking execute ComSifter will process the file by looking on each line for a text string followed by a CR LF f the format is valid ComSifter will then merge each line into the database with a filter If a user name is found to already exist that line will be ignored Note Windows 2000 Server includes a command line utility that will create this file It is included in the SDK and is named usrstat exe Users gt User List Merge User Names from File Merge User Names from file located in File Manager Select filter to be applied Filter 1 non IDENTD zl S to merged user names Execute Figure 2 10 Merge User Names from File 2 9 USERS Delete all user names from ComSifter This command allows all user names to be removed from the database Warning Use this command with caution All user names will be deleted from the database The command is irreversible Users gt User List Delete all user names from ComSifter This will delete all names from the user list Warning Warning All names will be permanently deleted Execute N Figure 2 11 Delete all User Names 2 10 USERS Preparing Active Directory for Synchronization ComSifter has the ability to integrate directly with Windows 2000 2003 Server Active Directory In this mode ComSi
48. tivty Threshold the page wil be banned Words Phrases may be Added os Deleted and weighting assigned or adjusted WordiPhrase must be surrounded by A space before and after a wordiphrase wil find an exact match ie badword No space before or after the wordiphrase wil match anywhere found i e adword A comma between word phrases wall look for the occurance of both words phrases on a page ie badword badword2 Allows seacchmg for a Word Phrase z the Seset Filter Sete Figure 4 2 Banned or Weighted Words Phrases Restart ComSifter Filter Any changes made in Words Phrases will not become effective until the ComSifter Filter is restarted ComSifter is designed to allow you to quickly make multiple changes to Words Phrases and then apply the changes by restarting the filter Words Phrases gt Ads Restart ComSifter Filter Changes made in the filter will not take effect until the ComSifter Filter Service has been restarted This will take up to 30 seconds and will momentarily disrupt client Internet connections Execute N Figure 4 3 Restart ComSifter Filter Note A restart may take up to 30 seconds to complete During this time all Internet connections will be disrupted Editi WORDS PHRASES ng Banned Words Phrases A word or phrase placed in the Banned list will result in an Access Denied Page to the user if the Banned word or phrase is found anywhere on the req
49. tual words phrases that are in each of these filter groups are located in the Words Phrases category and are discussed in Chapter 4 These groups may be activated or deactivated depending on the requirements of your installation The groups are Ads Audio video Chat Custom A Custom B Drugs Gambling Hate Hacking Mail In addition to the above list there are two groups that are permanently engaged These are Pornography Good Words Phrases 3 11 FILTER SETUP Blacklist Domain Filter Groups ComSifter has available nine Blacklist Domain filter groups A domain is a top level Internet address such as comsift com If a domain is in the filter group and the filter is activated the site will be banned Note These groups are maintained by Comsift and any changes are made by Comsift by way of the daily or weekly update dependent on your service contract If you find a site that you do not believe should be banned the site may be excepted by placing it in the Exception Domain List These groups may be activated or deactivated depending on the requirements of your installation The groups are Ads Audio video Chat Drugs Gambling Hate Hacking Mail In addition to the above list there is a pornography group This group is permanently enabled 3 12 FILTER SETUP Blacklist URL Filter Groups ComSifter has available nine Blacklist URL filter groups A
50. uested web page 4 Delet Words Phrases gt Gambling Edit Banned Smart Filter Words Phrases Words Phrases defined here and if the group is enabled in Filter Setup will cause any web page to be banned if the word phrase is found Words Phrases may be Added or Deleted Word Phrase must be surrounded by A space before and after a word phrase will find an exact match i e badword No space before or after the word phrase will match anywhere found i e badword A comma between word phrases will look for the occurance of both words phrases on a page ie badword1 badword2 Function Add Word Phrase v Add fc gambling Delete green card lottery N Figure 4 4 Adding or Deleting Words Phrases To add a word to the Banned CSphrase Word Phrase list Select Add Word Phrase in the Function drop down box Enter the Word Phrase to be banned following the syntax rules described at the beginning of this chapter Click Execute e To remove a word in the Banned CSphrase Word Phrase list 1 2 Select Delete Word Phrase in the Function drop down box Select the Word Phrase to be removed from the Delete drop down box Click Execute 4 5 WORDS PHRASES Editing Weighted Words Phrases A word or phrase placed in the Weighted list will result in CSphrase Filtering Technology applying the weight of the word phrase to its Sensitivity Counter if the word phrase is
51. unction drop down box 2 Select the Word Phrase to be removed from the Delete drop down box 3 Click Execute Search ComSifter incorporates a comprehensive search facility that allows you to search for a Word or Phrase The search will check all Word Phrase groups and return where the search term was found In the following example we are searching for the word gambling Words Phrases gt Ads Word Phrase Search Allows searching for a Word Phrase in the Smart Filter lists Name gambling Type of Search Exact Match First Word Phrase gt Figure 4 6 Word Phrase Search 4 7 WORDS PHRASES Words Phrases gt Ads Word Phrase Search Output from command The following usages of gambling were found lt gambling gt lt 30 gt found in gambling weighted 4 total of 1 instances of the word phrase gambling were found R End of report Figure 4 7 Word Phrase Search Result Search returns a report that tells us gambling was found in gambling weighted and has a weight of 30 CONTACT INFORMATION Appendix A Contact Information For your convenience Comsift provides a number of ways for you to contact us Location Comsift Inc is located at 1646 Elderberry Way San Jose CA 95125 Phone Main 866 875 1254 toll free in U S Sales 866 875 1254 x 701 toll free in U S Support 866 875 1254 x 702 toll free in U S Fax 408 265 5

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