Dedicated Linux server: Difference between revisions

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~~:''~~This article is based on a guide written by Raizo, the original of which can be found [https://blog.raizo.dev/posts/tf2-classic-linux-server-tutorial/ here].''

{{Ambox|contents=This article is based on a guide written by Raizo, the original of which can be found [https://blog.raizo.dev/posts/tf2-classic-linux-server-tutorial/ here].}}

== Reading this article ==

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* At least 25GB of free storage

* A minimum of a ten megabit upload speed if you intend on hosting a server over the Internet, more will be needed if you host custom content

* ~~''Optional'':~~ An opened port on your firewall for the server if you want a persistent IP address (see [[#~~Disabling~~ the Steam Datagram Relay|this section on ~~disabling~~ the Steam Datagram Relay]])

* An opened port on your firewall for the server if you want a persistent IP address (unless using SDR, see [[#Enabling the Steam Datagram Relay|this section on enabling the Steam Datagram Relay]])

* ''Optional'': An SSH/SFTP client if doing remote access/file management

* This guide was written for and tested on Ubuntu Server 24.04 LTS Minimal. Other ~~distros~~ may use different package names and conventions.

* This guide was written for and tested on Ubuntu Server 24.04 LTS Minimal. Other Linux distributions may use different package names and conventions.

**Architectures other than amd64 (including 32-bit x86) are ~~not supported~~. ~~Using an x86 compatibility layer~~ like ~~Box86 for another architecture~~ may not work.

**Architectures other than amd64 (including 32-bit x86) are unsupported. Compatibility layers like FEX or Box64 may not work or cause unexpected problems.

== Preparing for install ==

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Steam>app_update 3557020 validate

Steam>quit

</pre>

Before continuing, we'll need to symlink the install's <code>steamclient.so</code> to a special directory.

<pre>

$ mkdir -p ~/.steam/sdk64

$ ln -s ~/classified/linux64/steamclient.so ~/.steam/sdk64/

</pre>

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<pre>

$ cd ~/classified

$ ./srcds.sh -tf_path ~/tf +map ctf_2fort +sv_password changethis

$ ./srcds.sh -port 27015 -tf_path ~/tf +map ctf_2fort +sv_password changethis

</pre>

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ExecStartPre=-/usr/games/steamcmd +runscript /home/srcds/bin/update-classified.steamcmd

Environment="LD_LIBRARY_PATH=".:bin/linux64:$LD_LIBRARY_PATH""

ExecStart=/usr/bin/script -e -c "/home/srcds/classified/srcds_linux64 -tf_path /home/srcds/tf +map ctf_2fort +maxplayers 24" /dev/null

ExecStart=/usr/bin/script -e -c "/home/srcds/classified/srcds_linux64 -port 27015 -tf_path /home/srcds/tf +map ctf_2fort +maxplayers 24" /dev/null

TimeoutStartSec=infinity

Restart=always

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== Extras ==

=== ~~Disabling~~ the Steam Datagram Relay ===

=== Enabling the Steam Datagram Relay ===

Servers can use the Steam Datagram Relay. It masks your server's IP address, helps prevent DDoS attacks, and allows you to run a server without port forwarding or configuring firewalls. However, this comes at the cost of added latency and using ephemeral IP addresses for your server, the latter breaking server favoriting and IP bans.

You can enable this by adding <code>sv_use_steam_networking 1</code> to <code>classified/tf2classified/cfg/default.cfg</code>.

If you want your server to appear on the server browser with SDR enabled you will need to supply a GLST token. You can acquire a key by going to [https://steamcommunity.com/dev/managegameservers this page]. Once you've got it, put <code>sv_setsteamaccount $KEY</code> in your configuration, replacing $KEY with the token from the page.

=== Installing SourceMod ===

SourceMod is a server modding platform that provides admin tools, permissions, and plugin support. Installing it is strongly recommended if you plan to run a publicly-facing server.

You'll need to install the '''a development version''' of SourceMod, as well as MetaMod which SourceMod depends on to work. '''It will not work with stable releases currently'''. As of writing this article, the latest known working development build is 7301 and 1389 respectively.

<pre>

$ cd ~

$ wget https://mms.alliedmods.net/mmsdrop/2.0/mmsource-2.0.0-git1389-linux.tar.gz -O /tmp/mm.tar.gz

$ wget https://sm.alliedmods.net/smdrop/1.13/sourcemod-1.13.0-git7301-linux.tar.gz -O /tmp/sm.tar.gz

$ tar -xf /tmp/mm.tar.gz

$ tar -xf /tmp/sm.tar.gz

$ mv addons ~/classified/tf2classified

$ mv cfg/sourcemod ~/classified/tf2classified/cfg

$ rm -r cfg

$ rm /tmp/mm.tar.gz

$ rm /tmp/sm.tar.gz

</pre>

Once the server starts it should work. A good way to test if everything is running properly is to use the <code>!motd</code> command in chat. If the MOTD pops up after the command that means SourceMod is working. For further information on setting up SourceMod, read [https://wiki.alliedmods.net/Category:SourceMod_Documentation the documentation].

Existing SourceMod plugins are not guaranteed to work and may require special steps or patching to get working.

~~By default,~~ the dedicated server will use the Steam Datagram Relay. It masks your server's IP address, helps prevent DDoS attacks, and allows you to run a server without port forwarding or configuring firewalls. However, this comes at the cost of added latency and using ephemeral IP addresses for your server, the latter breaking server favoriting.

==== Installing the patched TF2 Tools extension ====

~~You~~ can ~~disable~~ this ~~by adding~~ <code>~~sv_use_steam_networking 0~~</code> to <~~code~~>classified/tf2classified/~~cfg~~/~~default~~.cfg</code>. ~~You should also manually assign a port~~ to the ~~server by adding~~ the <~~code~~>-~~port~~</~~code~~> ~~argument to~~ the ~~server launch command~~. ~~You will need the assigned port forwarded in your router and allowed in your firewall~~.

Many plugins depend on the built-in TF2 Tools extension that comes with Sourcemod. This isn't compatible with TF2C. Instead, we can use a patched version of the extension which enables the use of many plugins.

There's currently no public download link for this extension. After joining the Team Fortress 2 Classified Discord server you can find the files you need in [https://discordapp.com/channels/196337717267791874/1011914229307166780/1467172013637636327 this message]. Specifically, you need <code>game.tf2.ext.2.tf2.so</code> and <code>sm-tf2.games.txt</code>.

First, we'll need to disable automatic game data updating to prevent our gamedata file from being removed.

<pre>

$ nano ~/classified/tf2classified/addons/sourcemod/configs/core.cfg

</pre>

Replace <code>"no"</code> in this part of the file with <code>"yes"</code>

<pre>

/**

* Enables or Disables SourceMod's automatic gamedata updating.

*

* The default value is "no". A value of "yes" will block the Auto Updater.

*/

"DisableAutoUpdate" "no" // Change to "yes"

</pre>

Next we'll add both the gamedata file and the plugin to our installation.

<pre>

$ mv $WHEREVER_YOU_PUT_IT/sm-tf2.games.txt ~/classified/tf2classified/addons/gamedata/sm-tf2.games.txt

$ mv $WHEREVER_YOU_PUT_IT/game.tf2.ext.2.tf2.so ~/classified/tf2classified/addons/extensions/x64

</pre>

Finally, create an empty file so that the extension is automatically loaded.

<pre>

$ touch ~/classified/tf2classified/addons/sourcemod/extensions/game.tf2.autoload

</pre>

== Troubleshooting ==

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Steam>quit

</pre>

=== Server not showing up on the server browser while using SDR ===

This is likely happening because you enabled use of the SDR but didn't supply a game key. Read [[#Enabling the Steam Datagram Relay|the last paragraph of this section]] for more information.

=== Server using high levels of CPU when ran via the service file ===

The service file included in this guide has a workaround for Source servers refusing to log without a TTY present. There has been at least one report of this causing unusually high CPU usage. It's believed this happens on servers with slower SSDs and spinning hard drives. You can disable it, but it will mean there will be no journald logs for your server and you can't use features like Systemd sockets.

To disable it, unwrap the <code>srcds_linux64</code> command from <code>script</code>.

<pre>ExecStart=/usr/bin/script -e -c "/home/srcds/classified/srcds_linux64 -port 27015 -tf_path /home/srcds/tf +map ctf_2fort +maxplayers 24" /dev/null</pre>

<pre>ExecStart=/home/srcds/classified/srcds_linux64 -port 27015 -tf_path /home/srcds/tf +map ctf_2fort +maxplayers 24</pre>

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