If you’ve ever tried to connect to a remote server using ssh, and received an error message that says “Host key verification failed,” you know how frustrating it can be. This article will show you three ways to fix the…
Ever been stuck wondering what your IP address is in Linux? You’re not alone—recently we’ve received quite a few questions about this. So let’s clear it up once and for all. Knowing your IP address isn’t just trivia. It’s how…
DNS is a system by which a browser or other software converts a domain name to a IP4 or IP6 address. Each time we access a website the browser needs to convert the domain name to a IP4/IP6 address using…
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…
This article is part of the following series. In Linux, the home directory (also called “home” or “home folder”) is a directory designated for a particular user, where their personal files and configuration settings are stored. Each user on…
Ping is used to check if the machine is up and is connected to the network and working well on that particular network. The basic methodology here is that a network packet is sent to the machine if the machine…
A disk partition is a contiguous space of storage on a physical or logical disk that functions as if it were a physically separate disk. Partitions are visible to the system firmware and the installed operating systems. Access to a…
This article is part of the following series. To check the disk size in Linux, you can use lsblk, fdisk, or parted commands. All these commands are available in most Linux distributions. They provide information about disk size, partition…
An SPF (Sender Policy Framework) record is a type of TXT record in our DNS zone file. SPF records help identify which mail servers are permitted to send email on behalf of our domain. Adding an SPF record can help…
DNS PRT record is short for pointer record. It is one of the common Domain Name System (DNS) records. It resolves an IP address to a domain or hostname. It is also called DNS reverse record. The following commands can…
