Apache config

How can I set the "Use CanonicalName" from Off to On at the apache?
I had tried to set at /etc/httpd/conf/http.conf , /etc/httpd/conf/vhost/....but all not work!!
Please help,since one of program i use need this setting

 

Did you restart Apache after your change?

What's the output of

Code:

httpd -V

?

 

Sure restarted apache everytime I changed config.

httpd -V output:
Server version: Apache/2.0.52
Server built: Oct 15 2004 11:39:29
Server's Module Magic Number: 20020903:9
Architecture: 32-bit
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D HTTPD_ROOT="/etc/httpd"
-D SUEXEC_BIN="/usr/sbin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="logs/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"

 

The Apache configuration file you have to change is /etc/httpd/conf/httpd.conf.
The directive is

Code:

UseCanonicalName On