Network Interface Card (NIC) bonding, also known as Link Aggregation, Trunking, or Link Failover, is a method of combining two or more network interfaces into a single logical interface. This can provide increased network bandwidth and redundancy, as well as improve network availability by providing automatic failover in the event of a network link failure. … Read more
To display line numbers in Vim, you can use the following command in command mode: :set number This will display line numbers on the left-hand side of the screen. To turn off line numbering, use the following command: :set nonumber You can also use the short version of the above commands by replacing set with … Read more
The xargs command is a powerful utility that enables a user to take the output of one command and pass it as arguments to another command. Here is an overview of how to control and use command-line arguments with xargs. The basic syntax for the xargs command is: command | xargs [options] command Here, the … Read more
To execute a cron job after system reboot on Linux, you can add a cron job to the root crontab that runs at reboot. Here are the steps to create a cron job to run after system reboot: Open the root crontab file for editing using your preferred text editor. You can use the following … Read more
When acting as a proxy, Squid by default adds a header named “X-Forwarded-For” to each request. This header contains the IP address of the client that made the request. However, it’s possible to hide the system’s real IP address by configuring Squid to remove this header. Here’s how to do it: Open the Squid configuration … Read more
In FreeBSD, a jail is a form of virtualization that allows you to partition a FreeBSD system into smaller, self-contained environments. Each jail has its own network stack, file system, and processes, making it an ideal solution for building isolated and secure environments. In some cases, you may need to allow the jail to access … Read more
This error message indicates that there is another instance of the yum package manager currently running on the system. Yum is designed to prevent multiple instances from running simultaneously in order to prevent conflicts and ensure the integrity of the package database. To resolve this issue, you can wait for the other instance of yum … Read more
Linux is an open-source, Unix-like operating system based on the Linux kernel. It was first developed by Linus Torvalds in 1991 and has since become one of the most widely used operating systems in the world. Linux is known for its stability, security, and flexibility, and it is used in a variety of applications, from … Read more
Kubuntu 8.10 (Intrepid Ibex) and Kubuntu 9.04 (Jaunty Jackalope) are both no longer supported versions. However, for upgrading from one version to another, it is recommended to upgrade through each intermediate version. In this case, to upgrade from Kubuntu 8.10 to 9.04, you should follow the following steps: Backup your important data before proceeding. Make … Read more
In shell scripting, you can check the size of a file using the stat command. The stat command displays file or file system status, including file size, in a user-readable format. Here’s an example shell script that uses stat to find the size of a file: #!/bin/bash filename=”/path/to/file.txt” # check if file exists if [ … Read more