How to disable server side caching in bluehost

Bluehost provides server-side caching to improve the performance of your website. When you need to debug some problem on your


How to install cwebp on CentOS 7

cwebp is a command line program used to convert images into webp format. To install cwebp on CentOS 7, run


How to reset CentOS 7 root password using console

If you have lost the root password of your CentOS 7 system and have access to the console directly or

How to change home directory of a linux user

You can modify a user’s home directory using usermod command in Linux. The syntax for the usermod command is Example


How to auto restart ElasticSearh service on failure

If ElasticSearh service crash on your server, you can auto restart it by modifying systemd service file. This will open


Auto start Next.js with supervisor

I want to start Next.js development server on my computer when it starts. Usually, this is done using pm2, I


How to change Next.js port

You can start Next.js development server with the command This will start the development server on port 3000. If port

Ansible multiple hosts behind NAT port forwarding

I have 2 servers behind NAT, so they share the same IP address, SSH service runs on two different ports.

cPanel Server

How to install PHP 7.4 mcrypt module in Cpanel Server

mcrypt is a PHP module, that was DEPRECATED in PHP 7.1.0, and REMOVED in PHP 7.2.0. mcrypt is removed from

Cron Job fails with Error Message “(getpwnam() failed): No such file or directory”

On a CentOS server, cronjob did not work. Checking the log file found the following error message in /var/log/cron The

How to fix InnoDB: ERROR: the age of the last checkpoint

On a MySQL server, the error log keeps getting the following error message The error is because you are trying

How to block bad bots User-Agents in Cloudflare

Cloudflare provides a way to block bad bots under If you want to block one bots that is allowed, you