Hi,

I've changed the server name and after this the Apache server unable to start.

When I try to restart receive the error message ... FAILED ?

What is wrong ?

Put your new server name into /etc/hosts and restart apache.

Good luck.

If that doesn't work...try getting a little more information..

use this command to restart apache:
/usr/sbin/apachectl restart

(if that doesn't give you enough information..then move on to the logs)

/var/log/httpd/error_log and /var/log/httpd/ssl_error_log and /var/log/httpd/suexec_log

one of those should show you what the problem is...or at least give you something to post that would allow us to give you better suggestions.