Is any SOCKS5 proxy server packaged as part of RHEL5?? Which are the better alternatives to use.??
I agree with Prashant that squid would be a good option for a proxy server and it is well supported by every linux distro that I have used.
As for the SOCKS5 server software, I attempted to locate it to see if it is linux compatible, the links I found did say it will work on linux distros ( http://www.yingjenie.com/ying/linux/socks5/index.html), unfortunately I could not find the official site or where to get the source code from.