RPM(Redhat Package Manager) is a command line package management utility used for installing, uninstalling, updating, querying and verifying software packages. This article I will explain some of the most common Linux rpm commands for a system admin. Some of the [...]
Bobbin Zachariah
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How to Customize Shell Variable PS1-PS4 on Bash Prompt
You can see the real beauty of Linux when you use shell commands. There are some tasks which you cannot do in GUI and you have to use the shell. So having knowledge in shell commands, it will keep you [...]
12:35 am
How to Change Bash Shell Prompt Colorful and Attractive in Linux
Most of us work with a shell prompt. By default most, Linux distro displays hostname and current working directory. But only a few may be knowing about customizing the Bash prompt. You will be excited to know that you can change [...]
4:30 am
13 Practical df Command Examples to Check Disk Space in Linux
The df command displays the disk space usage for the Linux filesystems. It displays the amount of total and free disk space available on the mounted file systems. Using the command, we can also find used blocks and inodes in [...]
3:40 am
A Complete Docker Command List in Cheat Sheet
The idea of using container was made possible by the namespaces feature added to Linux kernel version 2.6.24. Namespaces allows to create an isolated container that has no visibility or access to objects outside the container. LXC, LXD, systemd-nspawn, Linux-VServer, [...]
3:00 am
How to Configure MariaDB Replication on CentOS Linux
Its a process of creating duplicate versions of a the DB. Replication process is not only copies a database, but also synchronizes changes from master to one of the slaves. But this is does not means that slave databases are [...]
6:00 am
4 Tools Send Email with Subject, Body and Attachment in Linux
In today's article we will cover a few ways you can use to send emails with attachments from the command line interface on Linux. It can have quite a few uses, for example to send an archive with an application [...]
6:00 am
Top 20 Network Monitoring Tools in Linux
In this tutorial lets discuss best networking monitoring tools available for linux system. There are a lot of tools available like nethogs, ntopng, nload, iftop, iptraf, bmon, slurm, tcptrack, cbm, netwatch, collectl, trafshow, cacti, etherape, ipband, jnettop, netspeed and speedometer. Each [...]
6:00 am
Install Vivaldi in Linux - Awesome Multi Platform Browser
A new browser is on the market. Vivaldi is a web browser based on Chromium / Blink (A project from Google), especially created for users who "have problems fitting all their open tabs on one screen" and for better performance than the existing browsers [...]
11:00 am
Colourful ! Systemd vs Init Cheatsheet for Linux
systemd is the new init system, starting with Fedora and now adopted in many distributions like RedHat, Suse and Centos. Historically, most of us have been using traditional SysV init scripts normally residing in /etc/rc.d/init.d/. These scripts invoke a daemon [...]
10:38 am
A Pocket Guide for Linux ssh Command with Examples
If you have been in the IT world for quite some time you probably have heard about SSH, how great a tool it is and all its cool security features. In this tutorial you will learn how to use SSH [...]
9:16 pm
How to Compile Linux with LXC and Create Application Container
LXC (LinuX Containers) is an operating system–level virtualization method for running multiple isolated Linux systems (containers) on a single host. The Linux kernel comprises cgroups (control groups) for resource isolation (CPU, memory, block I/O, network, etc.) which does not require [...]
9:15 am
How to Install Tomcat 8 on CentOS 7.0 (Multiple Instances)
Apache Tomcat is an open source web server and servlet container developed by the Apache Software Foundation. It implements the Java Servlet, JavaServer Pages (JSP), Java Unified Expression Language and Java WebSocket specifications from Sun Microsystems and provides a web [...]
10:06 am
Top 40 Linux Interview Questions & Answers
Are you preparing for a Linux interview? We have prepared the best selection of Linux interview questions and answers. If you are a beginner (with some knowledge of Linux or having certification) or with professional Linux administration experience, then this [...]
8:37 am