squid can't run

help me please
   i was set squid in my redhat server
but
   my client can't use IRC,FTP,TELNET to internet
why ??
how to set it for use IRC,FTP, Telnet
or i must install the other software ??

   i'm sorry my english is bad
   :(

 Thanks

-pakYAN-

just click here
www.geocities.com/yanayun/
www.akakom.ac.id/~yanayun/
members.tripod.com/yanayun/
www.angelfire.com/wa/yanayun/

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