Category: Linux

Linux Server Managment

Linux Find Out Graphics Card Installed In My System

I am a new Linux system user. I am using Ubuntu Linux. I do not want to open up the computer hardware to just see the make and model of the graphics card in a system. How do I find...

/ 17 April 2019

How do I check if a port is in use on Linux?

I am a new Linux system user. I need to find out which process is listening on a port on Linux using the command line. How do you find out which process is listening on a port on Linux operating...

/ 17 April 2019
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How to change the ssh port on a Linux server

FAQ: How do I change the SSH Port for my Linux or Unix server using command line option? You can easily change the SSH Port for Your Linux or Unix server. The ssh port defined in sshd_config file. This file...

/ 20 March 2019
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How do I know if my Linux is 32 bit or 64 bit? nixCraft

I need to find out if my Linux server is running on 32-bit or 64-bit system. How do I know if my Linux is 32 bit or 64 bit? To check if your Linux server is running a 32-bit or...

/ 18 December 2018
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How to update LXD container Ubuntu image from 16.04 to 18.04 nixCraft

I run my app inside Ubuntu Linux 16.04 LTS lxd Linux container. To upgrade Ubuntu 16.04 to 18.04 LTS container, I run do-release-upgrade command, but I am getting the error message that read as “Must be connected to a terminal.”...

/ 15 December 2018
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5 Tips To Speed Up Linux Software Raid Rebuilding And Re-syncing nixCraft Updated Tutorials/Posts

It is no secret that I am a pretty big fan of excellent Linux Software RAID. Creating, assembling and rebuilding small array is fine. But, things started to get nasty when you try to rebuild or re-sync large size array....

/ 15 December 2018
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Linux / UNIX: Check If File Is Empty Or Not Using Shell Script nixCraft Updated Tutorials/Posts

How do I check if a file is empty or not using bash or ksh shell script under a UNIX / Linux / macOS / OS X / BSD family of operating systems? How do I check if a file...

/ 13 December 2018
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How to setup a UFW firewall on Ubuntu 16.04 LTS server nixCraft Updated Tutorials/Posts

How do I setup a firewall with UFW (uncomplicated firewall) on an Ubuntu Linux 16.04 LTS server to restrict traffic on my personal web-server that hosts my pictures and blogs for my family members?UFW is an acronym for uncomplicated firewall....

/ 8 December 2018
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How to find out Raspberry Pi GPU and ARM CPU temperature on Linux nixCraft Updated Tutorials/Posts

I am using a Raspberry PI 2/3 credit size computer. How do I find out my Raspberry PI GPU or CPU temperature from Linux operating system command line option? How do I monitor the core temperature of my Raspberry Pi...

/ 8 December 2018
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Bash get exit code of command on a Linux / Unix nixCraft

I am a new Linux system user. How do I get the exit code of a command? How do I get the exit code or status of Linux or Unix shell command and store it into a shell variable?Introduction –...

/ 4 December 2018