lm_sensors stands for “Linux-monitoring sensors” and is an open source tool to display CPU temperature as well as other sensors such as voltage and fan speed. In most instances, it is used to display CPU temperature as many of the mid to low-end servers do not provide fan or voltage sensors, or they are supported […]
How to Install lsb_release on Ubuntu and CentOS
The lsb_release command provides certain LSB (Linux Standard Base) and distribution-specific information. The command has flags to display some or all of the information. [user@centos-server ~]$ lsb_release –help FSG lsb_release v2.0 prints certain LSB (Linux Standard Base) and Distribution information. Usage: lsb_release [OPTION]… With no OPTION specified defaults to -v. Options: -v, –version Display the […]
How to Change the Hostname in Linux
The Linux system hostname is important. It will help identify a given system within a larger network. It can also be used to set local and external DNS entries. To find out the current hostname of your linux system, simply type the hostname command: test@test-VirtualBox:~$ hostname test-VirtualBox In this particular example, the current hostname is […]
Installing htop on CentOS 7
htop is a free (GPL) ncurses-based interactive process viewer for Linux. It is similar to top, but allows you to scroll vertically and horizontally, so you can see all the processes running on the system, along with their full command lines, as well as viewing them as a process tree, selecting multiple processes and acting […]
How to SSH to Linux System without Requiring a Password
SSH Basics In order make more secure connection to a server or any other device, we do not want to use password authentication. That is the main motivation behind SSH public key authentication. SSH keys provide a fully encrypted way to access your device. A SSH key pair includes two types of keys: A public […]
Installing the Latest CentOS 7 Kernel
What is a Kernel? The kernel is the essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A synonym is nucleus. A kernel can be contrasted with a shell, the outermost part of an operating system that interacts with user commands. What is the Currently Installed […]