IP Deny Manager

How to Use cPanel IP Blocker: A Complete Guide to Blocking Malicious IPs

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cPanel’s IP Blocker is a built-in security tool that lets you block specific IP addresses, IP ranges, or entire subnets from accessing your website. Whether you’re dealing with brute-force login attempts, spam bots scraping your content, or a malicious visitor targeting your server, the IP Blocker gives you an instant way to cut off unwanted traffic at the firewall level.

In this guide, you’ll learn how to use cPanel’s IP Deny Manager effectively — from blocking single addresses and CIDR ranges to troubleshooting common issues like accidentally locking yourself out. We’ll also cover how IP Blocker compares to Apache .htaccess deny rules and tools like ConfigServer Security & Firewall (CSF), so you can choose the right approach for your setup.

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How to Use cPanel’s IP Blocker to Block or Allow IP Addresses

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If you manage a website with cPanel, keeping unwanted traffic out is just as important as letting legitimate visitors in. Whether you are dealing with a malicious bot scraping your content, a brute-force attack on your login page, or just need to restrict admin access to specific IP addresses, cPanel’s IP Blocker tool gives you direct control over who can and cannot reach your site.

This guide walks through everything you need to know about blocking and allowing IP addresses in cPanel — from the basics of the IP Blocker interface to advanced use cases like blocking entire CIDR ranges and diagnosing false positives.

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