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How to Install MySQL on CentOS 7 / RHEL 7 / Oracle Linux 7

How to Install MySQL on CentOS 7 / RHEL 7 / Oracle Linux 7

In this quick guide, i will show you how to install MYSQL on CentOS 7 / RHEL 7 / Oracle Linux 7 instead of MariaDB. MariaDB is the default implementation…

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How to Install and Setup 389 Directory Server on CentOS 7

389 Directory Server on CentOS 7

How to Install and Setup 389 Directory Server on CentOS 7

389 Directory Server (previously Fedora Directory Server) is an open source enterprise class LDAP server for Linux. It is developed by Red Hat community-supported Fedora Project. The name 389 is…

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How to Migrate LVM or Volume Group to New Linux Server

How to Migrate LVM or Volume Group to New Linux Server

This article will describe on how to move or migrate LVM and volume group from one server to another. If you are working in a production environment then you have…

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How to Change default runlevel in CentOS 7 / RHEL 7

How to Change default runlevel in CentOS 7 / RHEL 7

In CentOS 7 and RHEL 7, the systemd process replaces the init process for starting services at boot time and also for changing the runlevels. It uses “targets” instead of…

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Microsoft Will Bring Its SQL Database Software to Linux

Microsoft Will Bring Its SQL Database Software to Linux

Nearly one quarter of all the servers running in Microsoft’s Azure cloud service are powered by the open source operating system Linux. But you can’t actually run much Microsoft software…

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How to Disable IPv6 on Redhat / CentOS 6 / CentOS 7

How to Disable IPv6 on Redhat / CentOS 6 / CentOS 7

This howto will show you how to disable IPv6 on RHEL 6/7, CentOS 6, and CentOS7. IPv6 is enabled by default. In this article, I summarize 3 configuration which needs…

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How to Configure Linux TCP keepalive Setting

How to Configure Linux TCP keepalive Setting

In line with the increase in internet users, the traffic and workload on the web server is also increased. Hence, the webmaster or system administrator needs to make sure that…

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How to Install and Setup Munin on CentOS 7

How to Install and Setup Munin on CentOS 7

Munin is open source and free software for monitoring computer system, network monitoring and application infrastructure monitoring software. Munin offers monitoring and alerting for servers, switches, applications, and services. Munin…

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How to Prevent SSH Timing out from Server and Client

How to Prevent SSH Timing out from Server and Client

As a system administrator, you manage linux servers and for some others may have their own virtual private server (VPS).  In some cases you will need to spend a lot…

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Linux Machines Can Be Hacked by Pressing Backspace 28 Times

Linux Machines Can Be Hacked by Pressing Backspace 28 Times

A Pair of Spanish cybersecurity researchers have discovered a Linux vulnerability that could allow anyone with physical access to a system to log in without a password and launch a…

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How to Setup SSH Login Without Password CentOS / RHEL

How to Setup SSH Login Without Password CentOS / RHEL

As a system administrator, you plan on using OpenSSH for Linux and automate your daily tasks such as transferring files or database dump file for the backup to another server….

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How to Remove Banned IP from Fail2ban on CentOS 6 / CentOS 7

How to Remove Banned IP from Fail2ban on CentOS 6 / CentOS 7

Fail2ban is an intrusion prevention software framework that able to protect your server from brute-force attacks. Fail2ban written in the Python programming language and is widely used by most of…

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