Introduction CloudLinux provides resource isolation for hosting accounts, allowing administrators to monitor and control CPU, memory, and entry process usage for individual users. Monitoring resource consumption helps identify accounts that are exceeding their allocated limits and assists in troubleshooting website performance issues. This guide explains how to check live resource… Continue Reading Live Resource usage for a User

Introduction In most hosting servers, emails sent by the user ‘nobody‘ are restricted to prevent spam and abuse. Many CMS applications use PHP mail functions, and when PHP runs under mod_php or without suEXEC, the mail is often sent as the user nobody. When this restriction is enabled, outgoing emails… Continue Reading Mail sent by user nobody being discarded due to sender restrictions in WHM->Tweak Settings

Introduction Losing access to a WordPress admin account can prevent you from managing your website, updating content, or performing maintenance tasks. Fortunately, WordPress provides multiple ways to reset the administrator password. Depending on the level of access available, you can reset the password through the WordPress login page, phpMyAdmin, WP-CLI,… Continue Reading How to Reset a WordPress Admin Password

Introduction Secure Shell (SSH) is the standard protocol used by system administrators and DevOps engineers to securely access and manage Linux servers remotely. By default, SSH listens on port 22. However, many organizations configure SSH to use a custom port to reduce exposure to automated attacks and enhance security. There… Continue Reading Find custom SSH port number

Introduction When managing a website through cPanel or other web hosting control panels, you may come across terms such as Subdomain, Parked Domain, and Add-On Domain. While they may sound similar, each serves a different purpose in website management. Understanding these differences helps website owners, developers, and hosting administrators choose… Continue Reading Simple difference b/w Sub domain, Parked, and Add-On domain.

Introduction Distributed Denial of Service (DDoS) attacks can severely impact the availability and performance of web servers by overwhelming them with excessive requests or connections. To improve Apache web server security and reduce the risk of DDoS attacks, several protective modules and scripts can be installed and configured. These tools… Continue Reading Modules install with Apache to avoid DDOS attacks

Introduction A DDOS (Distributed Denial of Service) attack can cause high server load, excessive resource usage, and service interruptions. When you suspect that a server is under a DDoS attack, it is important to identify the source of the traffic and take immediate action to minimize the impact on the… Continue Reading A few steps to be taken when you feel that the server is under DDOS attack:

Introduction: Monitoring bandwidth usage per user is useful for identifying high-traffic accounts, troubleshooting resource usage, and managing hosting limits. If you have SSH access to a cPanel server, you can quickly check individual user bandwidth consumption using a simple shell script. Step 1: Create the Script File Log in to… Continue Reading Find user Bandwidth via SSH shell (CPanel/WHM)

Introduction The error “554 5.7.2 Service denied, closing transmission channel” occurs when the recipient mail server refuses to accept an email connection from the sender’s server. This is generally caused by spam protection systems, blacklisted IP addresses, incorrect mail server configuration, poor sender reputation, or failed authentication checks. Mail servers… Continue Reading Remote host said: 554 5.7.2 Service denied, closing transmission channel

Introduction Server security is critical for maintaining the integrity, confidentiality, and availability of your data and services. If you suspect unusual activity on your Linux server, it is important to investigate immediately to determine whether the system has been compromised. By checking user activity, running processes, network connections, and suspicious… Continue Reading Check if the server is hacked or not