UNIX for Dummies Questions & Answers

I'm ok to linux but not too much. I want to know that I ve running the Linux(RedHat 9.0) Based server install for Proxy(Interconnection Sharing) I had implement Squid for HTTP Proxy on which some services like IE, NetScape, Yahoo Messenger, MSN messenger and Get Right are running but I want to run my Outlook Express/OutLook/Mail Client application (POP3,Imap and SMTP) and other like IRC(MIrc) etc. So tell me wat to do


1. How To Implement the proxy for those things.
2. Boost up the Squid Performace (Cache Boosting etc.)
3. If any have URL or IP of free Peer Cache.
4. Or any related to it.

I'm Looking forward to it I will appricate your participation. ThanX

See this link on squid-cache.org discussing squid and pop3.

As you reffer me a link that is ok but matter is tat wat would be the command/code to enter in IPTables List to allow my clients Computers(OutLooks) to access SMTP/POP3 server i.e. I've to use

mail.cslpak.com for both POP3 & SMTP and I'm using Dail-up (ppp0) to connect internet and my Default Gateway is 255.255.255.255 wat you now say about that.