SOLVED members of an ISP (KPN) have issues viewing websites on my server

Jun 18, 2015
16
4
3
Maarheeze
cPanel Access Level
Root Administrator
It appears that a select group of people cannot view the websites on my server anymore. It happens only to users that have a certain ISP (KPN).

It is a very strange issue for me and also everybody that gets involved in it. TransIP helpdesk said it could be that I have blocked a whole IP range in my firewall, but ofcourse I didn't.

Can anyone give me some input on this?

EasyApache 3
PHP (DSO)
ModSec
ConfigServer Firewall
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,913
2,202
363
Hello,

You should be able to search for the IP address of an affected user in your CSF logs, or in the Apache error log (/usr/local/apache/logs/error_log) to verify if it's blocked by a firewall or Mod Security rule on your system.

If you don't see any results in those logs, then you may want to have one of the affected users try using traceroute from their computer to your website to see where the connection is rejected.

Thank you.