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Introduction A browser cache stores temporary files like images, scripts, and web pages to help websites load faster. Over time, this cached data can become outdated or corrupted, leading to issues such as slow browsing, login problems, or website display errors. Clearing the cache in browsers like Google Chrome helps… Continue Reading How to Clear Browser Cache

How to find Live Resource usage for a User: If Cloud linux is be enabled in the server, then you can use the following command to find resource usage:  # lveinfo –period=1W -u Output:# lveinfo –period=1W -u jahwaggyID              aCPU    mCPU    lCPU    aEP    mEP    lEP    aMem    mMem    lMem    MemF    MepF544             1  … Continue Reading Live Resource usage for a User

The  mail sent by nobody is usually restricted in most of the server in order to prevent spamming activity. In most of the CMS, the mail functions will be handled by the PHP scripts which has the ownership of nobody. You can see the following snippet present in the exim… 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

Simple difference b/w Sub domain, Parked, and Add-On domain. Sub domain * Lets say your domain is mysite.com. * You install a Message Board and put in in a directory called mysite.com/board/. * You can turn the directory board into a sub-domain by adding it as a sub-domain from your… 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