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How To Import QCOW2 Image Into Proxmox

In this guide, we will see how to import QCOW2 into Proxmox hypervisor and how to create a virtual machine using the QCOW2 image...

Remove frozen emails from mail queue – Exim

Emails can build up for a variety of different reasons but mainly results from emails which were undelivered.  When...

Safe Reboot Of Linux Using Magic SysRq Key

If you are working on kernel development, or device drivers, or running a code that could cause a kernel panic, the SysRq...

How to set a MySQL database to read-only mode

When we need to set the database as read-only on the fly (such as rebuild MySQL replication purpose) and we will use...