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How to open ssh port using ufw on Ubuntu/Debian LinuxnixCraft
How do I allow incoming SSH connections from a specific IP address or subnet on a Ubuntu or Debian Linux server using ufw?
View ArticleHow to rename LXD / LXC containernixCraft
How do I rename an LXD managed LXC container under a Linux operating system? You can move or rename containers within or in between lxd instances. In this quick tutorial, I will show how to rename an...
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How to install wget on a Debian or Ubuntu LinuxnixCraft
I recently switched from Windows server operating system to Debian Linux for my PHP based apps. I need to install something using wget. But it says: Â Â Â Â bash: wget: command not found How do I solve...
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How to delete or remove a MySQL/MariaDB user account on Linux or UnixnixCraft
I created a MySQL / MariaDB user account using this page. Now, I have deleted my wordpress blog and I want to delete that user account including database too. How do I delete or remove a MySQL or...
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How to clone existing KVM virtual machine images on LinuxnixCraft
I wanted to clone my Debian or Ubuntu Linux KVM VM for testing purpose. How do I clone existing virtual machine images under KVM?
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How to enable proposed archive repo on Ubuntu Linux to install packagesnixCraft
How do I enable the proposed archive for Ubuntu 16.04 LTS use the apt-get to installed selected kernel updated that is not released yet?
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How to rename KVM virtual machine (VM) domain with virsh commandnixCraft
How do I rename KVM-powered virtual machine from foo to bar using virsh command line option on Linux?
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How to add disk image to KVM virtual machine with virsh commandnixCraft
How do I add additional disk storage to a guest operating system to KVM virtual machine with virsh command on Linux operating system?
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How to disable ssh password login on Linux to increase securitynixCraft
I want to disable ssh clients from accessing using the password and only allow ssh login using SSH keys. How do I disable password authentication for SSH on Linux operating systems?
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How to install Ansible on Apple MacOS X using command linenixCraft
How do I install the Ansible software to automate apps and IT infrastructure from my Apple Macbook pro running MacOS X?
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How to enable KVM virsh console access for Ubuntu Linux VMnixCraft
I just followed your tutorial and setup KVM with Ubuntu Linux as a new guest virtual machine. However, I am unable to use the command: 'virsh console vm'. How do I setup and enable console access in...
View ArticleHow to auto start LXD containers at boot time in LinuxnixCraft
I am using LXD ("Linux container") based VM. How do I set an LXD container to start on boot in Linux operating system?
View ArticleHow to create a new config file in Ansible playbooknixCraft
I wanted to create a file named /etc/apt/apt.conf.d/1000-force-ipv4-transport with the value set to 'Acquire::ForceIPv4 true;' on 20 cloud servers hosted in AWS. I already setup Ansible playbook to...
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How to protects Linux and Unix machines from accidental shutdowns/reboots...
Oops! I did it again. I thought I was logged into my home server. Turns out I rebooted the db server. Another my not so favorite is typing "shutdown -h 0" into the wrong terminal. I know a few people...
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How to install and configure Varnish cache on Ubuntu Linux 16.04 LTSnixCraft
How do I install Varnish Cache server to improve the performance of my existing Apache web server especially caching dynamic content on Ubuntu Linux 16.04 LTS server?
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How to add an extra second hard drive on Linux LVM and increase the size of...
I have 250GB disk installed on my home Linux server. I just bought a brand new 250GB SATA disk and I want to add a new disk to my existing LVM volume to increase its size total size to 500GB. How do I...
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How to add an extra second hard drive on Linux LVM and increase the size of...
I have 250GB disk installed on my home Linux server. I just bought a brand new 250GB SATA disk and I want to add a new disk to my existing LVM volume to increase its size total size to 500GB. How do I...
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7 Awesome Open Source Build Automation Tools For...
Build automation is a vital tool for devops, sysadmins, and developers. It is nothing but scripting or automating the process of compiling source code into binary. Sysadmins can use build tools to...
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7 Awesome Open Source Build Automation Tools For...
Build automation is a vital tool for devops, sysadmins, and developers. It is nothing but scripting or automating the process of compiling source code into binary. Sysadmins can use build tools to...
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How to display cpu wise usage using top command on FreeBSD Unix operating...
I recently switched from Linux to FreeBSD. On Linux, I press 1 which show me a breakdown of CPU usage per CPU, but it is not working on FreeBSD. How do I find out the usage of individual CPU core usage...
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