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Installing ReHLDS, ReGameDLL_CS and Metamod-R

32/64 bit Debian/Ubuntu Linux procedure

As Half-Life and the Counter-Strike 1.6 engine and DLL's are old as hell, some blokes took the effort rewriting those to new standards 
full with fixes and better performance.

It is called ReHLDS.

These are optional, you do not have to do this for running a Counter-Strike 1.6 server but it is recommended to do so. 
When using 20+ year old software you should be aware of the security risks that might lead to it.

Again, this is optional. If you are really concerned with security (which you probably should in the year 2026) then follow these steps.

Download the needed files from the original websites or use the direct links I have provided below:

ReHLDS
ReGameDLL_CS
Metamod-R

If the Counter-Strike process is running then first kill it. When the Counter-Strike process isn't running then proceed to step 5.

1.  SSH to the server
2.  screen -r
3.  quit
4.  CTRL + c

Rename so you can always fall-back to the original files.

!!! WORK IN PROGRESS !!!