Reinstall Apache 2.X in CENT OS 5

Download the rpm and reinstall like so:

rpm -ivh –replacepkgs httpd-2.2.3-11.el5_1.centos.3.i386.rpm

For i386, you can grab the latest version here: http://mirror.centos.org/centos-5/5/os/i386/CentOS/

Backup your httpd.conf file first. User created files shouldn’t be affected, but it’s always wise to have a backup of those too.