setup GlusterFS cluster on Ubuntu Linux
. How do I enable network encryption using TLS/SSL for my Glusterfs storage cluster on Linux for security reasons when using over insecure network such as WAN (wide area network) or the Internet? How do I setup I/O encryption and management encryption with Glusterfs? [click to continue…]
How do I install and configure MariaDB Galera master to master cluster on Ubuntu Linux 16.04 LTS server to get both read and write scalability?
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recently decommissioned Debian Linux based nas server and moved disk from my nas server to Linux-powered desktop. However, when I run fdisk command, I am getting the following error: /dev/sdb: device contains a valid ‘LVM2_member’ signature; it is strongly recommended to wipe the device with wipefs(8) if this is unexpected, in order to avoid possible collisions
What is a wipefs and how do I use it on Linux? [click to continue…]
used the command ‘virsh shutdown vm1’ to shut down a guest named vm1 using the virsh command. However, it is still running, and my vm1 is not responding to an ssh session. Is there is a way to forcefully stop or kill a guest VM using the virsh command from host server? [click to continue…]
have a file named /etc/passwd i and I would like to find all hard links to this file in a directory. How do I find out all other hard links to the /etc/passwd in /backups/ directory? How can find all hard links to a given file using Linux or Unix command line option? [click to continue…]
he rsync command is eating all my bandwidth from a backup script and generating tons of I/O. How do I set a limit for file transfer speed of rsync command on Linux or Unix-like system? How can I keep my rsync script from using all of my bandwidth? [click to continue…]
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 add a disk to LVM and extend an LVM volume on Linux operating system? [click to continue…]
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 automate stuff. How do I create a new file using Ansible playbook? Is it possible to create a complex file with many lines of text (say squid.conf) using Ansible IT automation tool?
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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? [click to continue…]
ow do I add additional disk storage to a guest operating system to KVM virtual machine with virsh command on Linux operating system? [click to continue…]