Try to get sponsored.. or win some kind of competition that gives out servers to the winners.. I can't tell you I know any.. but you got to try to search for them.
I use this site to get a free cs 1.6 or cs source or whatever games they support for free for one hour. I used to use it to play quick scrims with my friends and what not. They give you the rcon to the server too but it shuts down in 1 hour. You can only get one every 10 days but I just change my ip and it'll work. Heres the site: Test Server - Instant Setup!
Well I have my old CS 1.6 Server.cfg config file. I can upload that on here. It has all the commands you need and it explains what each command does. I attached the file to my post. Enjoy!