CentOS 7

Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are…

In this tutorial we will cover how to reset the root password of MySQL and MariaDB on CentOS 7 / RHEL 7 Step 1 – Checking the version of Database…

By default, PostgreSQL Server allow access to clients localy using Unix sockets. Here, we’ll show you how to enable the network remote access to PostgreSQL Database Server. If you did…

In this guide tutorial, we will cover how to reduce an lVM swap partition on a CentOS 7 / RHEL 7 server. Task: Reduce the LVM Swap partition /dev/vg1/swap from…

RHCSA Exam Objectives: Start, stop, and check the status of network services In this lesson we are going to learn how to start, stop, enable, disable and check the status…

Odoo, known as Open ERP and CRM , is a suite of open-source business apps written in Python and released under the AGPL license, that cover all the company needs:…

Choosing a high-availability solution for MySQL to prevent downtime and data losing, is really one of the important subjects for an IT System Admin to handle. Today, we are going…

Holland is an open source backup framework written in Python. It can be used to back up several different database types using a number of methods based on the plugins…

Lsyncd stands for “Live Syncing Daemon“, lsyncd is used to sync or replicate files and directories locally and remotely after a specific time of interval. Lsyncd uses Rsync and ssh…

RHCSA Exam Objectives: How to Boot systems into different targets manually In this lesson we are going to learn how to boot systems into different targets manually on the Red…