How To Unblock an IP Address in CSF

CSF is generally considered an advanced firewall given it has many more configuration options than most other software firewalls (such as APF). It’s also still simple enough to install and configure, even for novice system administrators. If you’d like assistance with unblocking an IP address in CSF on your Liquid Web hosting solution, feel free to contact us anytime.

Check CSF for Your IP Address

Let’s say that you want to check whether or not a specific IP address, maybe 8.8.8.8 , is blocked by CSF. That’s easy!

csf -g 8.8.8.8

Unblock an IP Address

If the IP address is denied in CSF and you want to remove it, then use this command:

csf -dr 8.8.8.8

CSF then needs to be restarted for the change to take effect:

csf -r