Hi, I am running squid as a TRANSEPARENT PROXY WITH SQUID 2.5 on CENTOS 4.5. Pls see below for squid.con file. http_port 3128 cache_mem 64 MB cache_dir ufs /var/spool/squid 100 16 256 cache_access_log /var/log/squid/access.log cache_log /var/log/squid/cache.log cache_store_log /var/log/squid/store.log # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # Example rule allowing access from your local networks. Adapt # to list your (internal) IP networks from where browsing should # be allowed acl mynet src 192.168.101.0/24 http_access allow mynet httpd_accel_host virtual httpd_accel_port 80 httpd_accel_with_proxy on httpd_accel_uses_host_header on I am ruunnig itables on the SAME BOX. I have added below rules for squid. #Redirecting traffic destined to port 80 to port 3128 iptables -t nat -A PREROUTING -p tcp -i eth2 --dport 80 -j REDIRECT --to-port 3128 #For squid traffic to Accept iptables -A INPUT -i eth2 -d 192.168.101.254 -p tcp -s 192.168.101.0/24 --dport 3128 -j ACCEPT Evrything works fine. Now, I am ging to upgrade CENTOS 4.5 to CENTOS 5. It comes with SQUID 2.6. But, squid.conf file in SQUID 2.6 has no below lines. httpd_accel_host virtual httpd_accel_port 80 httpd_accel_with_proxy on httpd_accel_uses_host_header on So, I want to know how to setup squid as a TRANSEPARENT PROXY, when it comes to SQUID 2.6. any idea? -- Thank you Indunil Jayasooriya