The technology blog that consist of updates, tips, recommendations, how-tos, manuals, troubleshoot solutions, fix errors on linux and windows
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 of MySQL in Red Hat Enterprise Linux 7 (RHEL 7) or CentOS 7. MariaDB is a community-developed fork of the MySQL database project, and provides […]
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 derived from the port number for LDAP. In this article we will guide you through the steps on how to install and setup 389 directory […]
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 to know about the software disk management and all the methods to provide flexibility in storage management. LVM stand for logical volume management. It is […]
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 run-levels and relies on systemctl command to change runlevel or to change the target. The systemd provides much more control than the init process does […]
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 on those Linux servers. That’s about to change. Companies will soon be able to run Microsoft’s database software SQL Server on Linux, Microsoft’s Scott Guthrie […]
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 to be changed to completely disable ipv6. Check the configuration of the existing network with the “ifconfig” command. If inet6 appears in the configuration, means […]
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 the web server is able to accommodate a sufficient number of TCP connections. If your web server has begun to show an increase in the […]
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 can help system administrators to analyze the trend of the computer system whether it is experiencing problems or not. It can be an easier alternative […]
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 of time on the SSH connection to resolve any issues and do the routine work through command line. Some of you may have encountered an […]
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 variety of attacks. The vulnerability, found in versions of the commonly used Grub2 (GNU Grand Unified Bootloader) bootloader released since 2009, can be exploited by […]
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. To achieve this goal, you need to log in automatically from the host A to host B. Login automatically mean you do not want to […]
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 the VPS servers. Fail2ban will scan log files and IP blacklists that shows signs of malicious, too many password failures, web server exploitation, WordPress plugin […]