3 ways to create a dictionary variable in Ansible
In Ansible, a dictionary (also known as a hash, map, or associative array) is a data type that allows you…
How to get the disk size of a Postgresql database
If you’re a PostgreSQL user or developer, you may often need to monitor the size of your database to manage…
How to get Postgresql server uptime
In this post, we will delve into the concept of PostgreSQL server uptime, why it matters, and how to accurately…
4 ways to get Postgresql version
As a popular and powerful open-source relational database management system, PostgreSQL is widely used in many applications. In this post,…
3 ways to Check RPM package dependency in Linux
This article is part of the following series. RPM packages can contain not only the software itself but also…
6 ways to troubleshoot ssh: connect to host port 22: Connection timed out
A connection timeout means that the client attempted to establish a network socket to the SSH server, but the server…
4 ways to list files within a rpm package in Linux
This article is part of the following series. If you’re working with an RPM-based Linux distribution, you may need…
How to use Linux systemctl command
systemctl is a command-line utility in Linux operating systems that is used to control and manage the system’s services, daemons,…
3 ways to check FIPS mode in Linux
FIPS is an acronym that stands for Federal Information Processing Standards. It is a set of standards and guidelines developed…
2 ways to check selinux status in Linux
Security-Enhanced Linux (SELinux) is a security architecture for Linux systems that allows administrators to have more control over who can…