In this guide, we will be setting up a Left 4 Dead game server on Debian 7. These commands were tested on Debian 7 but they should also work on Ubuntu.
Before getting the L4D files, we need to install a few packages. Log into the server as root and issue the following commands.
If you're running x64:
dpkg --add-architecture i386
apt-get update
apt-get install -y libc6-i386 lib32gcc1 lib32stdc++6 screen
If you're running x86:
apt-get update
apt-get install -y screen
If you get errors about "setting locales failed", then execute the following commands:
export LANGUAGE=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8
locale-gen en_US.UTF-8
dpkg-reconfigure locales
(Full credit goes to "Werner Fischer" for the locale commands)
When you get to the config screen press ENTER, select en_US and press ENTER. After that's done, restart your SSH session.
The next step is adding a user for the L4D server to run under:
adduser steam
Follow the prompts to set a password for your user. Press ENTER to skip entering user information.
After you've added the user, start a new SSH session to your server and log into "steam" with the password specified during the previous step.
Our next step is to download steamcmd and extract it:
mkdir ~/steamcmd
cd ~/steamcmd
wget http://media.steampowered.com/client/steamcmd_linux.tar.gz
tar -xf steamcmd_linux.tar.gz
rm steamcmd_linux.tar.gz
We're now ready to grab the server files:
./steamcmd.sh +login anonymous +force_install_dir ~/l4d +app_update 222840 validate +quit
Note that this will take a while, since there is a lot of content to download. You might want to grab a cup of coffee while you wait.
If the download fails, just re-execute the command to restart it. You can also re-execute the command to get any available updates. Once the download is finished, we should add a few basic things to our config file:
nano ~/l4d/left4dead/cfg/server.cfg
hostname "servername"
log on
sv_logfile 1
sv_password "pass" (if you want a passworded server)
There are various resources on other websites for documentation on other variables. Once you're done editing it, you can save the file by pressing CTRL + X and then Y. After that, it's time to start the server.
cd ~/l4d/
screen -S l4d ./srcds_run -game left4dead -console -port 27015 +maxplayers 4
Congrats! Your L4D server is now up and running!