CSF Unblocker for WHMCS

CSF Unblocker for WHMCS

Developed By The Network Crew Pty Ltd (TNC)

Compatible with WHMCS v8.10

Firewall Unblocker (for CSF & WHMCS)

This extension provides the ability to self-service Unblock IPs from within WHMCS.

It supports CSF - ConfigServer Security & Firewall, typically used on cPanel+WHM.

(Module) System Requirements

  • Server Integrated OK
  • WHMCS v8.x latest
  • CSF 14.x latest
  • PHP# latest

(Module) Permission Requirements

  • software-ConfigServer-csf (WHM > Reseller ACL > needs this enabled)
  • whmuser:0:USE,ALLOW,DENY,GREP,UNBLOCK (within /etc/csf/csf.resellers)

(Install) How to Upload & Config

  • Download the latest version of the module from GitHub Repo
  • Upload the module into WHMCS_WEBROOT/modules/addons/
  • Visit WHMCS Admin > Settings > Addon Modules > enable it
  • From there, it will be visible in the Admin & Client GUIs

(FAQ) What can this module do?

  • Allow your customers to unblock their IP from your server's CSF firewall.
  • Checks for IP Block on all cP servers associated with an active client service.
  • Uses a Smarty template file so you can easily change look/feel of the addon module.
  • Only shows the link to the module in your menu if the client has an active cPanel.
  • Displays the CSF log entry so the client can see the reason for the block.
  • Logs successful unblocks in the WHMCS client log for potential review.
  • Set max number of unblocks a client can do in a configured time period.
  • Admin GUI: Quickly search for and remove blocks across all cPanel servers.
  • Optional: Auto-check for & remove a block when client logs in to WHMCS.

Corporate Sites: TNC & Merlot Digital

The Network Crew :: https://tnc.works

Merlot Digital :: https://merlot.digital



5 stars
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1 star

Filip Popovic @filip8128

May 18, 2024 at 01:27:57 PM

Hello, I cant see unblock field in client area?

  • 1 month ago

Version Compatibility

Compatible with WHMCS v8.10

Full Version Compatibility

  • Selected versions of WHMCS v8.10
  • Selected versions of WHMCS v8.9
  • Selected versions of WHMCS v8.8

System Requirements

  • PHP 8.x Stable

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Developed By The Network Crew Pty Ltd (TNC)


v2.20 Released January 14th, 2023

Latest Version


  • CHANGELOG.md file added to the repository
  • Support for WHMCS 8.x, PHP 8.x; all tested OK


  • Fixed visual and functionality problems with module

Bug Fix

  • Updated block reason regex to properly match CSF output
  • Method to get IDs from modern-day WHMCS updated to work


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