As a popular and powerful open-source relational database management system, PostgreSQL is widely used in many applications. Knowing the version of PostgreSQL that you are working with is crucial for compatibility checking, troubleshooting, and ensuring that your application is utilizing the correct features and optimizations. In this post, we will explore different methods to retrieve …
This article is part of the following series. 4 ways to list files within a rpm package in Linux 3 ways to Check RPM package dependency in Linux How to use yum to list All versions of Package in Linux 5 ways to list installed packages in Linux RPM packages can contain not only …
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 might see an error window with text like this: Network error: Connection timed out In …
This article is part of the following series. 4 ways to list files within a rpm package in Linux 3 ways to Check RPM package dependency in Linux How to use yum to list All versions of Package in Linux 5 ways to list installed packages in Linux If you’re working with an RPM-based …
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 control various system processes. Viewing systemd information In systemctl, a “unit” is a systemd …
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. What is FIPS? FIPS publications are used by federal agencies and organizations that handle sensitive …
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 to the Linux kernel using Linux Security Modules (LSM). Security Enhanced Linux (SELinux) provides an …
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 are sized correctly, you need to understand how to calculate their size. In this blog …
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 this blog post, we will discuss three different ways to check your EC2 instance ID. …
The /etc/resolv.conf 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 resolution works on your system. In this blog post, we will discuss the contents of …