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virsh destroy && virsh undefine = Delete a guest VM on Linux KVM after creating it with virt-install

If you created a KVM guest from the command line with first install. Say, after sometimes you do not need a guest VM. However, how do you I delete this KVM guest from the command line? The answer is simple: virsh destroy VM_NAME && virsh undefine VM_NAME Of course as usual stuff in IT may […] Read More

Get 2x faster performance & 50% better memory consumption than PHP 5.6 by using PHP 7 on Debian and Ubuntu Linux

So PHP 7 provides 2x faster performance and 50% better memory consumption than PHP version 5.6. How do you install PHP 7 on Ubuntu Linux version 14.04 LTS server? How do I install PHP 7 with PHP-FPM in along with Nginx web server or Lighttpd or Apache 2 server? How can I install PHP 7 […] Read More

You can now live patch Ubuntu Linux Kernel without rebooting the box

Kernel live patching enables runtime correction of critical security issues in running kernel without rebooting. Try new service from Canonical the company behind Ubuntu Linux operating system. It uses upstream Linux kernel 4.x kpatch technology. This guide explains how to enable or patch your Ubuntu Linux 16.04 LTS server without rebooting the box. Read more […] Read More