I am using Fedora 14 amd64
my apache server is running on my system is working fine bofore restarting the system my system is not starting

# service httpd status
httpd dead but subsys locked
tail /var/log/messages
abrt[30387]: saved core dump of pid 30386 (/usr/sbin/httpd) to /var/spool/abrt/ccpp-1381230131-30386.new/coredump (3248128 bytes)
abrtd: Directory 'ccpp-1381230131-30386' creation detected
abrtd: Crash is in database already (dup of /var/spool/abrt/ccpp-1381229083-28162)
abrtd: Deleting crash ccpp-1381230131-30386 (dup of ccpp-1381229083-28162), sending dbus signal
#tail /var/log/httpd/error_log
suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[notice] Digest: generating secret for digest authentication ...
[notice] Digest: done

Fedora 14 was EoL in December 2011 - time to upgrade...

You also need to consider whether fedora is the best choice for a web server. Something like CentOS might be a better option assuming you want to stick with Red Hat-like distributions.