Linux services and daemons can be controlled with chkconfig command. chkconfig command is mainly used to set given service or daemon run level. In order to work with chkconfig command we need root privileges. systemctl command suite provides more and detailed features. Related tutorial can be accessed from following link....
Host name is used to identify the systems like hosts, clients, servers etc. Host name provides human readable easy names to remember. In a big environment host names will provides some easy of use. This tutorial is compatible with RHEL6, RHEL7, Fedora, CentOS 6 and CentOS 7 versions How Host...
Ubuntu is popular Linux distributions used by millions. In order to access Ubuntu systems remotely we use ssh protocol. So in order to access and manage Ubuntu systems the ssh server should be installed and running without restriction like firewall. In this tutorial we will look how to install, start and...
Sql is very powerful language to query, insert, delete, modify data. Recents years the IT industry have developed some alternative ways to store and retrieve data. NoSQL type database servers become very popular. MongoDb is an NoSQL database server to store and retrieve data. In this tutorial we will look...
Secure Shell or with its most know name SSH is a protocol developed to connect IT systems remotely and securely. SSH works as expected client server architecture. In this post we will look various security related configuration options of the SSH daemon service or sshd. The tutorial about the client side...
Apache or Apache 2 is most popular web server in the internet. We have setup our Apache server and made some configuration change we want to active the changes. To active the changes Apache server must be restart. In this post we will look how to restart Apache in different...
Run Level is preset operating state in Linux systems. Different run levels have different behaivour. How can we change these run levels easily? What are these run levels? Run Levels We will explain the run levels and their meanings in this section Run Level 0 is shutdown position. Linux system is...
Hi, today we will learn managing Linux services with systemd or systemctl. While Linux kernel booting, it loads drivers, mount file systems, starting memory management, creating system calls etc. But after that what? Linux starts an init process to create further system and user services and processes. To manage system...
I have changed my network configuration and want to restart to make changes effective. Or there are some problems with my network and I think restarting it will solve my problems. Here we will look how to restart networking service in various network distributions like Ubuntu, Debian, Fedora,CentOS. Get Status...
Services are all over the Linux world. Enterprise Linux world turn over services. There are different tools to manage Linux services like Sys-V, upstart, systemd etc. Systemd is gaining popularity in recent times. Fedora, CentOs, RedHat uses systemd for a long time. Ubuntu started to use systemd too. Here we...
