14 Oct, 2025
4 mins read

What are the causes for mail issue and its solutions in control panel

Introduction: Email has become an indispensable tool for communication, yet encountering issues while using it is a common frustration. Various factors can disrupt the seamless flow of emails, ranging from technical glitches to configuration errors. Understanding the causes behind these problems is crucial for implementing effective solutions and ensuring uninterrupted communication. In this discussion, we’ll […]

6 mins read

How to zip and unzip in Linux with Examples

Description A Zip archive is a compressed file format that supports lossless data compression. A zip archive might contain multiple files and directories inside it. Zip is a very popular archive file format. Almost every operating system supports zip including all the operating systems by Microsoft as well as all the Linux operating systems. In […]

4 mins read

How to disable direct root access in Linux

Description It is very important to secure your Linux server to protect your data, intellectual property, and time from the hands of crackers (hackers). Everybody says that Linux server is secure by default and to some extent this is true. Linux has in-built security model by default. We need to tune it up and customize […]

3 mins read

How to check memory usage on CentOS

Description : Linux operating system comes with many commands to check memory usage. The “free” command usually displays the total amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel. “top” command provides a dynamic real-time view of a running system. The top command can display […]

1 min read

How to Install PuTTY on Linux

Description : PuTTY is a free and open-source cross-platform SSH and telnet client that even after being around for over 20 years remains one of the most popular SSH clients being used especially on the Windows platform. The quickest reasons that come to mind for such scenarios include: Familiarity: users are more comfortable using an SSH client they got familiar with […]

1 min read

How to Add IP Address in Windows Firewall

Description According to your needs, you can configure Windows Firewall settings to add IP addresses in Windows with the Windows Firewall settings. You can follow the below steps to add IP address in Windows Firewall. Step 1: On the Start menu, Click ‘Windows Firewall with Advanced Security’. Step 2: Click the ‘Advanced settings’ option in […]

3 mins read

Run a Command with Time Limit (Timeout) In Linux

Description Timeout is a command-line utility that runs a specified command and terminates it if it is still running after a given period of time. In other words, timeout allows you to run a command with a time limit. You can set a time limit for any command you want. If the time expires, the […]

1 min read

How to list all files ordered by size in Linux

Description The ls command is one of the basic commands that any Linux user should know. It is used to list information about files and directories within the file system. The ls utility is a part of the GNU core utilities package which is installed on all Linux distributions. In this article, we can see […]

3 mins read

How to unzip a ZIP File in Terminal Using SSH

Description : Restoring a backup from a ZIP file – like the ones generated by our downloadable backup feature – can sometimes be a lengthy process. If you unzip a ZIP file locally on your computer before uploading the backup with SFTP, you’ll likely run into a bottleneck because SFTP can only transfer a limited […]

2 mins read

How to Run a Command with Time Limit (Timeout) In Linux

Description : The goal of Linux is to help you be as fast and efficient as possible. One property of a Linux command is the time limit. You can set a time limit for any command you want. If the time expires, the command stops executing. In this short tutorial, you are going to learn […]