hello, i'm in a need of abit help here.
i need help with how i can set up multiple Server for cs 1,6/source on a dedicated server. how todo with ports, setting up the "servers" itself etc.
does it exist a control panel to help me to set up? or do i need to do everything manually from customer to customer.

Thanks for help in advance.

1) Server Files - https://support.steampowered.com/kb_article.php?ref=6758-TCMF-2234
2) Control Panel - http://www.tcadmin.com
3) To run multiple servers you either need to run the servers on different IPs or ports. You can do this via the command line

-console -game cstrike +ip iphere -port porthere +maxplayers slotshere +exec server.cfg +map de_dust2

If you're running Windows, go invest in TCAdmin. It's a great piece of software for installation, configuration, and management for all your gameservers.

Well this might help. There is a free game server control panel if you don't want to spend money on them:

http://www.gamecreate.com/

and if you have cPanel, you can just get the game server plugin for it.