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…
centos
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Centos/RedhatDatabasesLinux
How To Reset MySQL or MariaDB Root Password On CentOS 7 / RHEL 7
by Lotfi Waderni January 15, 2019In 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…
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DatabasesLinux
How To Enable Network Remote Access To PostgreSQL Database Server
by Lotfi Waderni February 4, 2017By 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…
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Linux
How to Reduce / Shrink the Size of a LVM Partition Formatted with XFS Filesystem?
by Lotfi Waderni January 30, 2017Issue: – How to reduce the size a partition formatted with xfs filesystem? – How can I reduce the size of a LVM partition formatted with xfs filesystem? It is…
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Centos/RedhatLinux
How To Reduce An LVM Swap Partition On CentOS 7 /RHEL 7
by Lotfi Waderni January 23, 2017In 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…
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Centos/RedhatLinux
RHCSA Exam Objectives: How to Start, Stop, and Check the Status of Network Services
by Lotfi Waderni January 22, 2017RHCSA 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…
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Centos/RedhatDatabasesLinux
How To Install PostgreSQL 9.6 on CentOS 7 / RHEL 7
by Lotfi Waderni January 17, 2017Step 1: Add the PostgreSQL 9.6 Repository # sudo yum install https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm -y Step 2: Install PostgreSQL 9.6 – To install PostgreSQL 9.6 just run the below command: # sudo…
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Centos/RedhatDatabasesLinux
Installing and Configuring Percona XtraDB Cluster High Availability On CentOS 7 / RHEL 7 – Part3
by Lotfi Waderni January 13, 2017Choosing 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…
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Centos/RedhatDatabasesLinux
How to Configure Holland to Backup MariaDB on CentOS 7 / RHEL 7
by Lotfi Waderni January 4, 2017Holland 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…
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Centos/RedhatLinux
How to Install and Configure Lsyncd on CentOS 7 / RHEL 7
by Lotfi Waderni December 25, 2016Lsyncd 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…
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