Hi All
I Have configured squid proxyserver,and i give cache memory size is 32 MB.I am using squid on a HCL server with Xeon Dual processor and 1 GB of RAM,32 MB of Harddisk.Now I have three problems in squid...

1.What size of cache u prefered me to use in this squid for optimal performance.
2.When a user open Internet Exploree or Mozilla or any other browser then he should prompt for a username and password to access the Internet.
3.If a user user try to open banded website/service how can i catch the ip address of that user.

I am using squid proxy server in RHEL and with it about 50 computers are connected.
Thnaks to All
-Rajendra Shakyawal

A2. I have a how-to written on my website about pam authentication and NTLM authentication using squid, check it out if you want. PAM prompts the clients to enter a password everytime they open a web browser, NTLM gets the information from their login (if your using a windows domain login and IE 5+)

A3. all this information (who accessed what website) is stored in ‘/var/log/squid/access’ file. There are plenty of programs out there that filter your internet access, squidGuard, DansGuardian

they both have webmin modules that makes it easy to manage.

just go to my website and search for 'squid'.