I think that squid is looking for ip_tproxy.h in the wrong path. Look the following: checking for linux/netfilter_ipv4.h... yes -OK, this path exist checking for linux/netfilter_ipv4/ip_tproxy.h... no -Path /linux/netfilter_ipv4 doesn't exist on Linux slackware 10.2 How to solve this problem? ps: copying ip_tproxy.h to /usr/include raises the same error message Regards Edinilson --------------------------------------------------------- ATINET-Professional Web Hosting Tel Voz: (0xx11) 4412-0876 http://www.atinet.com.br ----- Original Message ----- From: "Edinilson J. Santos" <edinilson@xxxxxxxxxxxxx> To: <squid-users@xxxxxxxxxxxxxxx> Sent: Tuesday, July 04, 2006 6:09 PM Subject: Tproxy Headers I'm trying to compile Squid 2.6 Stable1 with --enable-linux-tproxy option and the following error is raising: checking if TPROXY header files are installed... no WARNING: Cannot find TPROXY headers, you need to install the tproxy package from: - lynx http://www.balabit.com/downloads/tproxy/ Searching in the above url I can't find the headers (my kernel is compiled with tproxy suport already). Where can I download tproxy headers? Thanks Edinilson --------------------------------------------------------- ATINET-Professional Web Hosting Tel Voz: (0xx11) 4412-0876 http://www.atinet.com.br