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Troubleshooting the “Client Host Rejected: Cannot Find Your Hostname” Email Error in cPanel

If you’re seeing the error “450 4.7.25 Client host rejected: cannot find your hostname” in your logs when sending emails, it means the receiving server couldn’t verify your server’s hostname. This is often due to a missing or incorrect reverse DNS setup. In this blog, we’ll explain what causes this error and how you can fix it. Understanding the error The receiving email server cannot verify your server’s IP address with a valid hostname. You

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Merin John August 8, 2025

How to Disable Directory Listing in cPanel with Apache

Introduction When managing a website, prioritizing security is crucial. One common vulnerability is Apache’s default setting that enables directory listing. This means that if an index file (such as index.html or index.php) is absent, visitors can access a complete list of files and folders within that directory. This unintentional exposure of sensitive files can put your site at risk. Learning How to Disable Directory Listing in cPanel is an essential step to protect your website

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Sourav AJ February 12, 2025

How to Transfer emails from one cPanel to another

Transferring emails between cPanel accounts is a common need during server migrations or account changes. In this guide on How to Transfer emails from one cPanel to another, we’ll show you a straightforward and reliable method to ensure all your emails are securely moved without any risk of data loss. Follow these steps to complete the process with ease. Prerequisites: Step-by-Step Process: Step 1: Backup Emails from the Old cPanel Account 1. Log in to

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Sourav AJ February 3, 2025

How to fix modsec.sqlite file size issue in cPanel

If you’re managing a cPanel server, you might come across a situation where the modsec.sqlite file located at /var/cpanel/modsec/ becomes excessively large. This file stores logs from ModSecurity, and without proper maintenance, it can take up a lot of disk space, affecting the server’s performance. If you’re wondering how to fix the modsec.sqlite file size issue in cPanel, regular maintenance and log management are essential to prevent it from growing too large. In this blog,

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Jishnu V November 27, 2024

How to Change the cPanel Document Root for the main cPanel Domain

A website document root is the folder in which the files of the websites are stored. When you are hosting multiple subdomains, you will need to add them in different folders for each. Normally the document root is public_html for a cpanel main domain. As cPanel does not provide any tools for changing the document root easily, Changing the document root to a different folder is an essential task for us. Here’s a step-by-step guide

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Sourav AJ October 4, 2024

How To Migrate your Website from Direct Admin to cPanel

If you’re thinking about migrating your website from DirectAdmin to cPanel, you’re in the right place. In this blog, we’ll lead you through the migration process step by step, without or with minimal downtime and no data loss. Let’s get started. Step 1: Preparation Before starting the account migration process, make sure that the cPanel server has been set up properly and has sufficient resources for handling the migrated accounts. Step 2: Generate Backups in

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Sourav AJ May 20, 2024

Setting Up Additional Backup Destination to a Custom Drive in a cPanel server

I have mounted a new disk /backup2 to the backup server 10.xxx.xxx.110 in order store the backups from the live server 103.xxx.xxx.120 which is a cPanel server.  The backups will be currently kept on a functional server. To move the backups to the backup server’s /backup2 mount, we need to configure the backups. Let’s look at how to set up the backup configuration: Setting up Backup Configuration : Firstly, ensure that the disk is correctly

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Sourav AJ March 23, 2024

Enhanced Dynamic Caching with Engintron: Optimizing NGINX for cPanel

Engintron, an Nginx implementation tailored for CPanel, comes equipped with numerous advanced features already enabled. One notable feature is its micro-caching service designed specifically for dynamic HTML content. This caching capability allows for the temporary storage of dynamic HTML responses in the cache for a duration of one second. To safeguard against caching sensitive information, the application does not cache requests containing cookies or URLs with shared prefixes. The primary objective of Engintron is to

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Sajna VM March 12, 2024

How to uninstall Engintron on the cPanel server

A Step-by-Step Guide to Uninstalling Engintron on a cPanel Server Introduction Engintron is a popular open-source Nginx integration for cPanel servers, designed to improve server performance. However, there may be instances where you need to uninstall Engintron from your cPanel server. This article will guide you through the process of uninstalling Engintron step-by-step, ensuring a smooth transition back to the default server configuration. Step 1: Preparation Before proceeding with the uninstallation process, it’s crucial to

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Kevin June 3, 2023

How to Migrate cPanel Account using WHM Transfer Tool

In this article, our Server support team will explain “How to Enable IP Restriction for WHM Access.” A cPanel account migration to a new server doesn’t have to be a difficult process. The procedure can be sped up and made easier with the appropriate equipment and knowledge. We’ll walk you through the process of moving a cPanel account using the WHM Transfer Tool in this article. Let’s first quickly review what cPanel and WHM are.

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joseph March 14, 2023
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