ой, чуть не забыл:

# /usr/local/sbin/nginx -V
nginx version: nginx/1.2.0
built by gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
TLS SNI support disabled
configure arguments: --with-pcre=/usr/local/src/publicnginx/pcre-8.30 --sbin-path=/usr/local/sbin --conf-path=/etc/nginx/nginx.conf --pid-path=/var/run/nginx.pid --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --with-http_realip_module --with-http_ssl_module --http-client-body-temp-path=/tmp/nginx_client --http-proxy-temp-path=/tmp/nginx_proxy --http-fastcgi-temp-path=/tmp/nginx_fastcgi --with-http_stub_status_module

# uname -a
Linux test.ru 2.6.18-308.4.1.el5 #1 SMP Tue Apr 17 17:08:00 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux
# cat /etc/redhat-release
CentOS release 5.8 (Final)