In testing CentOS 6 and Squid v3.1 (as it comes with CentOS 6) I get the error on squid startup: 2011/07/13 15:36:45| Processing Configuration File: /etc/squid/squid.conf (depth 0) 2011/07/13 15:36:45| Starting IP Spoofing on port [::]:3129 2011/07/13 15:36:45| Disabling Authentication on port [::]:3129 (IP spoofing enabled) 2011/07/13 15:36:45| FATAL: http(s)_port: TPROXY support in the system does not work. I think this may be related to capability checking based on a squid-users thread I read which was dated 2/2/2010. Before I go and download and build a squid-3.1.14 rpm for CentOS 6, can someone comment on this issue, and any fixes, etc.? I am working on a an updated CentOS 6 with squid, TPROXY, and WCCP setup howto. Thanks, Nicholas