help for tcpinfo

mylich119 mylich119 at
Thu Sep 11 07:09:00 UTC 2014

hi everyone,
now I am trying to use $tcpinfo_rtt in the nginx.conf, but it can not be recognized.

below is my envioroment. and when I built nginx 1.6.1, it said "checking for TCP_INFO ... not found "

[lichuanhui at yptest01v ~/nginx-1.6.1]$ cat /etc/redhat-release 
CentOS release 5.4 (Final)
[lichuanhui at yptest01v ~/nginx-1.6.1]$ uname -a
Linux 2.6.18-164.el5xen #1 SMP Thu Sep 3 04:03:03 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux


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