followed your tutorial to install an OpenVPN on my Ubuntu
server in the cloud. How can I install Pi-hole to block ads, reduced my 4G/3G/LTE traffic on the same Debian or Ubuntu Linux server? [click to continue…] Sysadmin because even developers need heroes!!!
am a new Linux and bash shell user. How do I permanently set $PATH on Linux? How can I permanently add a directory to shell PATH on Linux? [click to continue…]
ow do I determine if a port is in use under Linux or Unix-like system? How can I verify which ports are listening on Linux server? [click to continue…]
I would like to perform common automated configuration tasks and run commands/scripts after the LXD instance starts. How to use cloud-init to run commands on my Linux Container (LXD) instance at launch time?
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have created a zfs file system called data/vm_guests on Ubuntu Linux server. After the server reboot, zpools do not automatically mount at /data/vm_guests. It is failing my KVM guest machines. How can I mount my ZFS (zpool) automatically after the reboot? [click to continue…]
am a new Linux and KVM user. How do I delete a VM guest with virsh command line on Linux operating system? How do I delete a virtual machine called vps42 on Ubuntu or CentOS Linux server? [click to continue…]
wanted to use PHP 7 on Debian 8.x. How do I install and configure PHP 7 on Debian Linux 8.x server? How do I install PHP 7 on Debian Linux 7.x “wheezy” VPS server hosted in cloud? [click to continue…]
very serious security problem has been found in the Linux kernel. A 0-day local privilege escalation vulnerability has existed for eleven years since 2005. This bug affects all sort of of Android or Linux kernel to escalate privileges. Any user can become root in less than 5 seconds. The bug has existed since Linux kernel version 2.6.22+. How do I fix this problem? [click to continue…]
Before upgrading my virtual machine, I would like to make a snapshot. I want to revert a domain/VM to a snapshot if something goes wrong with my upgrade. Is there a command to create a snapshot of virtual machine (VM) while it is running? Does qemu-kvm support live snapshot creation?
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y Linux shell user can modify their password using the passwd command. How can I force users to choose the secure password that will prevent users from using stupid passwords like “abc123”, “password”, “123456” and so on? How do I setup password quality requirements on my Debian or Ubuntu Linux server? [click to continue…]