Vertigo`s Running Dedicated Server HOWTO (v1.2)
Contents
1. Any value in range 2340 2350 is ok 2345 is sensible if you plan to run only one server besides your own client DEDICATED Switch to enable dedicated mode YES of course DEDICATEDOWNER List of comma separated account names who can send commands to the server If you leave it blank anyone can send commands to your ded from the chat environment A list of trusted accounts remember to include your one If not empty it MUST include all mods and admins DEDICATEDCOMMANDPREFIX The prefix for the commands sent to the ded A short string easy to remember possibly noted in the ded comment and unique of your ded DO NOT LEAVE IT BLANK DEDICATEDRESTARTMESSAGE A string to restart the server directly from the chat leave Deprecated blank DEDICATEIDLE Switch to enable the ded to NO to reduce noise print its message periodically YES if you want your on chat The message is server to print the idle repeated approximately once message every hour DEDICATEDIDLEMESSAGE The message for the above A public message no setting profanity allowed you want broadcasted SERVERIP IP or host name of the master Any public server you want to use your MegaMekNET master ded on server address Leave default for McWizard s 3025 server Other IP and names can be found on the site forums SERVERPORT Port for above server 2347 Keyword Descr2. on the nature of the equipment you re using In the device user manual you should look for port forwarding and how to forward incoming external connections toward an internal otherwise unreachable machine In the Appendix A B and C I provide some hints IMPORTANT NOTE hosting and running a ded server is almost ALWAYS possible no matter your network configuration It might be complex to setup but there are really few cases in which you re prevented from hosting at all only when you cannot directly access and reconfigure your network devices e g if you play from a campus where the network admins can t won t help you you re prevented from hosting your games 5 Configuration details for dedicated servers A ded is controlled statically by the file config txt just like your normal account does However most of the configuration keywords are exclusive to the ded environment and some of them might prevent it from working correctly Here s a list of the configurable keywords a brief description and sensible suggested value Keyword Description Suggested IP The IP machine address of your If behind a firewall set it to 127 0 0 1 otherwise you can leave it commented PORT The listening port of your ded server Remember that if you want to host as well as to run deds this value has to be different from the one of your account In case of port forwarding this is the port to forward
3. Vertigo s Running Dedicated Server HOWTO v1 2 1 Overview This document will describe the configuration details about running a megamek dedicated server ina MegaMekNET campaign setting This document covers version group 0 3xxx of MegaMekNET 2 Hosting and dedicated server Running an host and running a dedicated server are basically the same task let MegaMekNET players fight their battles in a client server environment But there are practical difference between the two concepts 1 Hosting a game means launching a game server program from within the MegaMekNET client program Makes no difference whether you will then join your own host load a previously saved game or start a new game The hosting happens when you create a game server from within a regular player account 2 Dedicated server or ded for short is an ad hoc account whose only reason to be is to host games for other players It has its own configuration different from regular account ones can be controlled by the means of remote commands and doesn t create a graphical user interface when it s launched 3 How to start a dedicated server A dedicated server is simply an account that doesn t create a graphical interface So it s started exactly like you d start your own account I suggest you to copy the entire MegaMekNET package or link the content of your installation except config if you re using a nix operating system like Linux i
4. ent had to leave and you agreed to continue the game later In the game server you issued the command save myfight sav so to Save your game on ded s disk You can use any name you want in this case mygame sav Be sure not to use autosave sav because it will be overwritten by anyone else playing on same server Let s imagine the ded you were playing on has PREFIX as its prefix and its name is MyDedSrv You will give this command to reload your game mail Dedicated MyDedSrv PREFIXloadgame myfight sav Notice there s no blank space between the prefix and the command The server will load your saved game and will send you a private confirmation message 11 30 Private Mail Dedicated MyDedSrv Saved game loaded You can then resume your game on MyDedSrv by joining that ded Note the EXACT players also observers connected to the server at the time of saving the game have to reconnect to the ded server For this reason be sure to save your game when there are only the two fighting players connected Furthermore if you don t have permissions to issue commands to a ded ask the owner or any available mod online Usually they can load your game for you 7 Rule extension on dedicated servers It is forbidden to tinker in any way by resetting killing loading savegames etc with a ded server that s actually hosting a match even if the owner list is empty or if you are in the owner list o
5. er other firewall Read the router other firewall manual Look specifically for port forwarding or virtual server or connection forwarding features You have to reconfigure your device so to have it forward your PORT from outside to the hosting ded machine as described in paragraph 4 Appendix C how to host behind a Windows based firewall Format the disk install Linux follow guidelines in Appendix A This appendix welcomes contributors familiar with the Windows environment and with firewall configs for that operating system Appendix D a graphical description of port forwarding Step 1 your machine announces the port to the game environment Local PC Router FW Internet Remote PC Step 2 when it s time to play a remote host requests connection to that port J w 2 Local PC Router FW Internet Remote PC Step 3 a normal blocking router firewall will just drop the request 2 i 4 Local PC Router FW Internet Remote PC Step 4 a well configured router firewall will let pass the request and forward it to the machine it is protecting aoa 4 Local PC Router FW Internet Remote PC Step 5 the connection is established game can start oe Local PC Router FW Internet Remote PC
6. f that ded Unless players fighting on the server give you explicit permission to fiddle with their hosting server any interference with running deds will result in harsh punishment by mods Appendix A how to host behind a Linux based iptables firewall Here are described the needed commands to let a connection from outside be forwarded on an hidden machine when the firewall is a Linux box with iptables and kernel supporting packet forward For example to allow external connections on port 2346 from interface ethO toward internal host 10 1 2 3 you would give these commands as root on the Linux firewall echo 1 gt proc sys net ip_ forward Activate kernel packet forwarding kernel must support already it iptables t nat A POSTROUTING s 10 1 2 3 j MASQUERADE Activate NAT masquerading for hosting machine iptables A FORWARD s 10 1 2 3 j ACCEPT Accept forwarding from to the machine iptables A FORWARD p tcp i ethO dport 2346 j ACCEPT Accept data streams on appropriate port port has to match the one configured in your config txt file iptables t nat A PREROUTING p tcp i ethO dport 2346 j DNAT to destination 10 1 2 3 Port forward the connection to the ded machine iptables t nat A PREROUTING p tcp s 10 1 2 3 dport 2346 j DNAT to destination 10 1 2 3 Let clients join from same machine so you can play on your own ded Appendix B how to host behind a rout
7. iption Suggested NAME The name of your server It doesn t need to be registered It will have Dedicated automatically prepended so don t add such a prefix Anything not already registered NAMEPASSWORD The password for your ded Since you won t register its name anything goes Anything avoid to use the same password as your main account COLOR The color of the ded name in chat Anything Avoid bright colors like yellow MAXPLAYERS The max number of players you allow on your server A or more You must always keep a free spot for mods admins to check your games TIMESTAMP Switch to add timestamps to chat messages NO COMMENT The comment string as it will appear in the Battles tab Up to you but should contain the prefix and possibly the owners list 6 Chat commands At any time you can send a public message in chat or a private message to any ded and if you prefix the command with that ded s prefix you are on that ded s owner list or that ded has a blank owner list you will be able to give commands to the ded itself If you don t know the prefix of a ded you can type prefix single word all lowercase in the chat 11 20 Vertigo M prefix and all those deds that have your account in their owner list or have a blank owner list will send you in private their configured prefix 11 21 Priva
8. n a new directory edit the config txt file and start the ded from there as if you re starting your normal client 4 How to host or run a ded behind a firewall router The basic concept needed for running a game server both hosting and deds is to accept incoming TCP data streams toward your machine It is beyond the scope of this document to teach you the basics of TCP IP networking You can find a decent book describing this kind of networks in any bookstore for any price If your machine has a publicly reachable address there s no problem in hosting running a ded If you already run other servers web or FTP servers for example then your machine is probably already configured to host your games If your machine is behind a firewall a router or other masquerading device that hides your real address you need to reconfigure your device so to let incoming connections reach the internal machine rather than stopping at the external device The key for such task is port forwarding everytime a connection is attempted on your configured listening port the routing device won t take that connection for itself but instead will forward the connection and the data therein to the hosting ded machine that hides behind the device In the Appendix D I provide a graphical description of this process The details on how to reconfigure your firewall your router your NAT masquerade device depend heavily
9. te Mail Dedicated DedSrv My command prefix XYZ Here follows the list of commands you can then send to deds taken from http www megamek com mmnet CampaignCommands txt Open commands needing no prefix prefix If you send this in a private mail to a Dedicated it will tell you its prefix lt restartmsg gt Restarts the dedicated Deprecated Prefixed commands needing the prefix restart Restarts the dedicated like closing the server and reopening it reset Resets the game server like entering reset directly inside the game server die Kills the dedicated it quits the chat environment start Re enables connections on a stopped server stop Stops a dedicated from accepting connections restartmsg Returns via PM the actual restartmsg owners Returns via PM the actual owner list if any owner lt name gt Temporarily adds a new owner to the owner list restartmsg lt newmsg gt Temporatily sets a new restartmsg prefix lt newprefix gt Temporarily sets a new prefix port Returns via PM the actual listening port port lt newport gt Temporarily sets a new listening port ping Returns via PM the actual Idle Message Loadgame Loads autosave sav from ded s disk loadgame lt filename gt Loads filename from ded s disk For example let s imagine you were fighting on a ded but your oppon
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