As a popular and powerful open-source relational database management system, PostgreSQL is widely used in many applications. In this post, we will explore different methods to retrieve the PostgreSQL version information. We will cover SQL queries that can be executed…
This article is part of the following series. RPM packages can contain not only the software itself but also its dependencies, which are other software packages required for the software to function properly. Managing RPM package dependencies is crucial…
A connection timeout means that the client attempted to establish a network socket to the SSH server, but the server failed to respond within the timeout period. ssh: connect to host 203.0.113.0 port 22: Connection timed out In PuTTY, you…
This article is part of the following series. If you’re working with an RPM-based Linux distribution, you may need to list the files that are contained within an RPM package. This can be useful for a variety of reasons,…
systemctl is a command-line utility in Linux operating systems that is used to control and manage the system’s services, daemons, and other processes. It is an essential tool for system administrators and developers as it allows them to monitor and…
FIPS is an acronym that stands for Federal Information Processing Standards. It is a set of standards and guidelines developed by the United States federal government to establish uniform requirements for information security, including computer security, data protection, and cryptography.…
Security-Enhanced Linux (SELinux) is a security architecture for Linux systems that allows administrators to have more control over who can access the system. It was originally developed by the United States National Security Agency (NSA) as a series of patches…
When it comes to Amazon Web Services (AWS), S3 is one of the most popular services. This is because S3 provides a secure and scalable storage solution for businesses of all sizes. In order to ensure that your S3 buckets…
If you’re running a business on Amazon Web Services (AWS), then you know that instances are an important part of your infrastructure. It’s crucial to be able to identify your instances easily, so that you can manage them effectively. In…
The file is a configuration file used by the Linux operating system to store information about Domain Name System (DNS) servers. This file contains a list of DNS server addresses, as well as other options that control how DNS…
