Linux and Unix, Open Source, Linux Howtos
Well-known services in Linux can be added on boot time without any problems, because most of them come with their own script, which is done using ‘chkconfig’ and ‘systemctl’ commands. …
How to execute a command or script at reboot or startup Read More
Single user mode, also referred to as maintenance mode, allows a single super user to recover/repair the system problems. Generally, these problems cannot be solved in a multi-user environment. The …
How to Boot into Single User Mode in CentOS/RHEL 7/8 Read More
Finding your device IP address(s) can be useful for various purpose. For instance, configuring a firewall, DNS and networking. IP addresses can be divided into two major categories, public and …
How to find your Public IP Address in Linux Read More
Linux users can easily test a websites availability from the command line by obtaining the status codes from the web server. The below HTTP response status codes will tell you …
How to quickly check if a website is up or down Read More
sed command stands for Stream Editor. It is used to perform basic text transformations in Linux. sed is one of the important command, which plays major role in file manipulations. …
How to delete lines from a file using sed command Read More
NTP stand for Network Time Protocol, which synchronizes the clock between computer systems over the network. NTP server keep all the servers in-sync with accurate time to perform time based …
How to verify if NTP sync is working on Linux? Read More
As a Linux administrator you might perform a disk partition task quite often. Most of the time the partition table will be altered successfully after the disk partition in the …
How to Reload partition table without Reboot in Linux Read More
A hostname (also known as a Computer Name) is a name which is given to a device (It could be a system, switch, router, etc) that is connected to the …
Best 5 commands to check HostName in Linux Read More
When working on a Linux system, sometimes you need to figure out what processes are running and which PID or PPID is tied to it. It can be used for …
How to find the Process ID of a program in Linux Read More
There are several ways to detect the WWN of a Fibre Channel (FC) HBA and their details in Linux/Unix operating systems. In this article, we will explain you the two …
How to find WWN and WWPN of HBA card in Linux Read More