How many servers are using ReHLDS? here you can see: GameTracker.com
At the end of this topic you will find what ReHLDS is in case of you don'd know it already.
Install
If you don't know how to install it follow those steps bellow.
Go to Releases · dreamstalker/rehlds (github.com) and download the latest Release (BIN) of ReHLDS in my case is https://github.com/dreamstalker/rehlds/releases/download/3.11.0.767/rehlds-bin-3.11.0.767.zip
You need to install zip on your linux.
Ubuntu
sudo apt-get install zip
Go to your server directory location
cd ~/Steam/cs_server
Download and Extract the files
wget https://github.com/dreamstalker/rehlds/releases/download/3.11.0.767/rehlds-bin-3.11.0.767.zip ;
unzip -o rehlds-bin-3.11.0.767.zip ;
rm -rf rehlds-bin-3.11.0.767.zip ;
What is ReHLDS: