To configure the SSL certificate, follow these steps:1) First, generate a private key and a CSR, a process common to all three servers (Apache2, Nginx, HAProxy). openssl req –new –newkey…
POSIX, short for "Portable Operating System Interface," is a family of standards developed to ensure compatibility between various operating systems. This compatibility extends to user interfaces, allowing users to interact…
Let's explore the differences between a shell built-in and a shell keyword.Shell Built-in A built-in command is hardcoded into the shell, executing faster than external commands since there's no need…
tfenv simplifies the installation and management of various Terraform versions on a single host. With 'tfenv use terraform-version' command, you can effortlessly switch between different Terraform versions based on your…
To upgrade Ubuntu to the latest version, follow this sequential upgrade path: 14.04 ➔ 16.04 16.04 ➔ 18.04 18.04 ➔ 20.04NOTE: Based on my experience with OS upgrades, it's advisable…
Parted Magic is a software that allows one to take a complete backup of a hard drive and restore the backup to the hard drive when needed. It can also…
Changing the default data directory in a TeamCity server, would require the following steps 1) First Stop the TeamCity server with the following command,/opt/jetbrains/TeamCity/bin/runAll.sh stop 2) Copy all the files…
Did you forget your MySQL root password and want to reset the password? Then let's look at a way to reset your MySQL root password.1) Stop the MySQL server service…
About DNS resolution DNS resolution is pivotal for seamless internet functionality for end-users. For instance, imagine the inconvenience of entering the IP Address directly instead of typing "google.com" into the…
Occasionally, when comparing dates (e.g., 2021-08-09) within a Bash script, unexpected errors may arise, such as 'value too great for base (error token is "08")' or 'value too great for…