For some reason, Apache is redirecting all requests to port 23.. or maybe it isn't apache, but something is doing it. This started happening randomly and for no apparently reason.. Anyone know what the problem could be? My users aren't getting error messages, it just says they can't connect.
my first check would be iptables... it is probably forward port 80 requests to port 23.
Also have a look at what ports your server is listening on. It should say listening on port 80 like so
you can quickly disable iptables, this will confrim if it is iptables. Normally: