Inform client he's blocked by firewall?

Elephantino

• February 09, 2017 08:48

Hello, sometimes users IP is blocked by CSF. If they want to access theire Websites they get no Message to get that information. Just pages are not loading. Is there a way to redirect the blocked user to a information page? Greetings Elephantino

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  dazeck

  • February 09, 2017 15:43

  Hi. I had this a while ago and managed to solve it by enabling the messenger service on the CSF configuration.
  Messenger service. This feature allows the display of a message to a blocked connecting IP address to inform the user that they are blocked in the firewall. This can help when users get themselves blocked, e.g. due to multiple login failures. The service is provided by two daemons running on ports providing either an HTML or TEXT message. This feature does not work on servers that do not have the iptables module ipt_REDIRECT loaded. Typically, this will be with MONOLITHIC kernels. VPS server admins should check with their VPS host provider that the iptables module is included. For further information on features and limitations refer to the csf readme.txt Note: Run /etc/csf/csftest.pl to check whether this option will function on this server 1 to enable, 0 to disable
  

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  Elephantino

  • February 09, 2017 16:07

  Hi. I had this a while ago and managed to solve it by enabling the messenger service on the CSF configuration.
  Messenger service. This feature allows the display of a message to a blocked connecting IP address to inform the user that they are blocked in the firewall. This can help when users get themselves blocked, e.g. due to multiple login failures. The service is provided by two daemons running on ports providing either an HTML or TEXT message. This feature does not work on servers that do not have the iptables module ipt_REDIRECT loaded. Typically, this will be with MONOLITHIC kernels. VPS server admins should check with their VPS host provider that the iptables module is included. For further information on features and limitations refer to the csf readme.txt Note: Run /etc/csf/csftest.pl to check whether this option will function on this server 1 to enable, 0 to disable
  

  
  Hi Dazeck, thank you for this deep information! Greetings Elephantino

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  cPanelMichael

  • February 10, 2017 14:52

  Hello, It looks like the messenger service feature in CSF addresses this issue. I'm marking this thread as solved. Thanks!

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