OpenVZ useful commands

OpenVZ useful commands Here is the list of some useful OpenVZ commands which should be run from the main node : 1. To fetch the consumption of disk for each container in the node along its it’s hostname and ctid vzlist -H -o veid,hostname,diskspace | awk ‘{ printf(“%d\t%s\t%.2f GB\n”, $1, $2, $3/(1024*1024))}’   2. To…

Disk Extend EXT2/3/4 and XFS root partition without LVM

Disk Extend EXT2/3/4 and XFS root partition without LVM Looking for steps to grow your KVM VM/Container’s partition after extending root OS size or extending ext2/3/4 and XFS root partition without LVM at runtime. Steps to extend root partition without LVM are quite easy and can be followed without going into many technical details. This…

How to fix and Prevent SQL Injection in WordPress

Introduction SQLi is the manipulation of a security flaw in database systems. WordPress, as a platform, runs server-side scripts in PHP and uses SQL databases. Hence, SQL and PHP make WordPress websites vulnerable to attackers. They could insert malicious URLs (which are embedded with commands) that trigger unwanted behaviors from your database. Consequently, your database’s…

How to automatically clean up /tmp directory contents in Linux?

How to automatically clean up /tmp directory contents in Linux?   Every Linux system has a directory called /tmp which has mounted with separate file system. It has special filesystem called tmpfs. It’s a virtual filesystem and operating system will automatically mount /tmp mount point while system booting. If you want to mount /tmp directory separately as…