In this tutorial, I will explain how to setup a Garry's Mod server. This tutorial was written for CentOS 7.
Let's make sure that the system is fully updated. Create a new user for this server, and be sure to use a strong password.
yum update yum upgrade -y adduser gmod passwd gmod
Open the required firewall ports with
firewall-cmd --zone=public --add-port=27015/tcp --permanent firewall-cmd --zone=public --add-port=27015/udp --permanent firewall-cmd --reload
Install the required system libraries to run SteamCMD.
yum install glibc.i686 libstdc++.i686 -y
Now, switch to the user that was just created.
su gmod cd ~
Download SteamCMD by using wget.
wget https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz tar xf steamcmd_linux.tar.gz
Install the game server files with SteamCMD.
./steamcmd.sh +login anonymous +force_install_dir ./gmod +app_update 4020 validate +quit
When it says
Success! App '4020' fully installed., simply type
quit and press
The game server is now installed.
To change the name of your server, edit the
Paste the following into
server.cfg and change
RconPassword to anything you would like.
hostname "ServerName" rcon_password RconPassword
We will create a script so that you can update your server with a single command. First, create the file
Paste in the following:
login anonymous force_install_dir ./gmod app_update 4020 quit
To update your server, you just need to run the following command:
cd ~ ./steamcmd.sh +runscript update_gmod.txt
Navigate to the
gmod folder and run your server.
cd /home/gmod/gmod/ screen -dmS gmod ./srcds_run -game garrysmod -console -port 27015 +maxplayers 18 -tickrate 66 +map gm_flatgrass
At this point, your server is now running in the background. You may shut it down at anytime with the following command.
screen -S gmod -X quit
Enjoy your new Garry's Mod server!