Author Archive: Bobbin Zachariah

Founder of LinOxide , passionate lover of linux and technology writer. Started his career in Linux / Opensource from 2000. Love travelling, blogging and listening music. Reach Bobbin Zachariah about me page and also below google plus page.

rss feed Google Plus

Docker Commands Cheat Sheet Part 1 and 2

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, OpenVZ and Docker are some of the management tools for Linux containers. Main difference between […]

February 8, 2017 | By in CONTAINERS
| Reply More

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 identical copy of the master, because replication can be configured that only a schema of […]

April 15, 2015 | By
| 2 Replies More

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 from an application server to email or you can use the commands in scripts to […]

April 6, 2015 | By
| Reply More

Vagrant - Basic Setup of Virtual Development Environment

Vagrant is free and open source software for creating and configuring virtual development environments. Project was started in January 2010 by Mitchell Hashimot as a side-project, but in November 2012 Mitchell formed HashiCorp and started working on Vagrant full time. So why would you want to use Vagrant? Vagrant will help you lower development environment setup time, and share […]

February 19, 2015 | By
| 1 Reply More

Bringing a Bunch of Best Known Linux Network Tools

It is very useful to use command line tools to monitor the network on your system and there are a tons of them out there available for the linux user such as nethogs, ntopng, nload, iftop, iptraf, bmon, slurm, tcptrack, cbm, netwatch, collectl, trafshow, cacti, etherape, ipband, jnettop, netspeed and speedometer. Since there are many linux […]

February 17, 2015 | By
| Reply More

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 Chromium and Chrome. The browser is started by Vivaldi Technologies, whose chief executive and founder is John von […]

January 28, 2015 | By
| 11 Replies More

Colourful ! systemd vs sysVinit Linux Cheatsheet

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 binary which will then fork a background process. Even though shell scripts are very flexible, […]

September 5, 2014 | By
| 27 Replies More

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 in a few minutes and login to your remote computers seamlessly and securely. If you […]

August 13, 2014 | By
| Reply More

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 starting any virtual machines. Cgroups also provide namespace isolation to completely isolate application's view of […]

August 1, 2014 | By
| Reply More

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 server environment for Java code to run in. This article will guide you through the […]

July 22, 2014 | By
| 4 Replies More

25 Linux Interview Questions and Answers (Basic and Scenarios)

As the opportunities for linux jobs are increasing day by day , its very  adequate to start preparing for linux interviews. In this article we have presented, questions and answers in basic level and scenarios. More likely all questions are related to system administration. Basic Questions 1. What is initrd image and what is its […]

July 21, 2014 | By
| 10 Replies More

How to Install and Configure Nagios 4.0.7 on CentOS 7.0

Nagios is a system and network monitoring application that offers monitoring and alerting services for servers, switches, applications, and services. It alerts the users when things go wrong and alerts them a second time when the problem has been resolved. Nagios runs periodic checks on user-specified resources and services, it can be used to monitor […]

July 18, 2014 | By
| 8 Replies More

A Good Understanding of D-BUS - An IPC Mechanism in Linux

D-BUS is an IPC (inter-process communication) mechanism that helps applications communicate with each other. D-Bus  (Desktop  Bus)  is  a  simple  IPC,  developed  as  part  of  freedesktop  projects. It  provides  an  abstraction  layer  over  various  applications  to  expose  their  functionalities  and  possibilities.  If  you  want  to  utilise  some  feature  of  an  application  to  make  another  program  […]

July 16, 2014 | By
| 8 Replies More

Linux Smem Tool - Displays Memory Usage More Accurate

In a shared memory environment, which is a technique used by most operating systems, there is a challenge of counting the memory several times. This ends up giving users and system administrators inaccurate information on how physical memory is used. To solve this problem smem comes in very handy. Smem reports Unique Set Size (USS) […]

July 13, 2014 | By
| 1 Reply More