Recent Articles

How to Install Softether VPN server on Centos 7

Setting up your own virtual private network server is a good way to evade blockage and be able to access sites that are blocked in your country. Choice of open source VPN packages is long but today we decided to try Softether coming from University of Tsukuba in Japan. Softether have long been proprietary product […]

August 25, 2016 | By in LINUX HOWTO, SECURITY
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How to Compile IPFire Firewall on Ubuntu 14.04

In our previous article we have installed and configured the IPfire firewall on the virtual machine (VM). However, in this article our focus is the compilation of IPfire on the Ubuntu platform. Following could be the reasons of IPfire compilation from source code. Removal/Addition of features Writing new plugins Update packages like Linux kernel Customization […]

August 24, 2016 | By in FIREWALL, OPEN SOURCE TOOLS
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How to Configure OpenVPN on Ubuntu 16.04

Continuing the series of VPN articles, we now install OpenVPN on Ubuntu 16.04 Server. OpenVPN is well know VPN software from company of the same name. It is is somewhat harder to configure than other VPN software, so we will concentrate on server side configuration, and making ovpn files in this article. This guide is designed […]

August 23, 2016 | By in UBUNTU HOWTO
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25 Best Known DevOps Tools that Commonly Used

DevOps can be simply defined as the practice of performing operations and development activities on a project. The use of developers technique for performing system administration tasks is also called as DevOps. Its meaning is really different from person to person as it covers a lot of arena. It is also a culture that emphasizes […]

August 22, 2016 | By in DEVOPS, LINUX HOWTO
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Install Rainbow Stream Commandline Twitter Client on Linux

Rainbow stream is a free open source, smart and nice terminal based twitter client. It provides real time tweet stream, compose, search, favourite and much more fun directly from linux terminal. It is written in Python and built on top of twitter API and python twitter tool. To run this application in your console you […]

August 19, 2016 | By in LINUX HOWTO
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30 Expected DevOps Interview Questions and Answers

If you are searching for devOps job, you are making good career decisions since it is well paid and heavily demanded job nowadays. In this article, we will go through the DevOps interview questions that you might expect from your interviewer. The questions are many and we couldn't possibly list all of them, but after […]

August 18, 2016 | By in DEVOPS, LINUX HOWTO
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Install WordPress on Docker LEMP Stack with Letsencrypt SSL

WordPress is an opensource software, which you can use to create your beautiful website, blog, or app. Hundreds of community volunteers has built this core software. And there are thousands of plugins and themes available for this to transform your website into the one in your imagination. In this article, I'm explaining on how to […]

August 17, 2016 | By in DEVOPS, LINUX HOWTO
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How to Install Asterisk 13 on Ubuntu 16.04 from Source

Asterisk is the VoIP server with SIP and PJSIP support for Linux based operating systems and it makes great tool for learning SIP and venturing into the world of VoIP. For that purpose, we are going perform installation of Asterisk 13 on Ubuntu 16.04 Server. It will run as asterisk user and we are doing […]

How to Setup Volatility Tool for Memory Analysis

In the IT security field, memory or Random Access Memory (RAM) analysis  helps to identify the malicious or illegal activities in the system. RedLine is a free for volatile memory analysis tool which is provided by Mandiant (FireEye company). However, well-known open source security tool for volatile memory analysis is  volatility. It supports analysis of […]

August 12, 2016 | By in LINUX HOWTO, SECURITY
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Securely Download Files using Https from Nginx Docker Containers

As  system administrators, we have situations where we need to download large files such as backup files, database backups, emails, log files etc securely between our servers. Usually we use SFTP, SSH or SCP for this purposes. But these processes slow down comparatively, when it comes to a remote backup download. In this article, I'm explaining a […]

August 10, 2016 | By in LINUX HOWTO, SECURITY
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How to Setup Zimbra Mail Server on Ubuntu 16

Zimbra collaboration suite has two flavors- Network edition and open source edition. In this tutorial we will explore quickest and easiest way to install zimbra ( free edition ) mail server along with other components like LDAP, antivirus, antispam, Amavis (amavisd-new) - Content checker, Aspell - Spell checker, MySQL and other collaboration features and a […]

August 9, 2016 | By in MAIL SERVER, UBUNTU HOWTO
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How to Upgrade Linux Kernel to Stable 4.7 on CentOS 7.x

This is an article on upgrading Linux kernel to the latest stable version (4.7.0) on CentOS 7 . Here, we will understand why we should upgrade the kernel  and different ways of doing the same. As you might know, kernel is a part of the Operating System(OS) that acts as an interface between applications and […]

August 8, 2016 | By in LINUX HOWTO
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How to Setup ELK Stack to Centralize Logs on Ubuntu 16.04

The ELK stack consists of Elasticsearch, Logstash, and Kibana used to centralize the the data. ELK is mainly used for log analysis in IT environments. The ELK stack makes it easier and faster to search and analyze large volume of data to make real-time decisions-all the time. In this tutorial we will use the following […]

August 5, 2016 | By in UBUNTU HOWTO
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How to Monitor Docker Containers using Grafana on Ubuntu

Grafana is an open source feature rich metrics dashboard. It is very useful for visualizing large-scale measurement data. It provides a powerful and elegant way to create, share, and explore data and dashboards from your disparate metric databases. It supports a wide variety of graphing options for ultimate flexibility. Furthermore, it supports many different storage backends for your […]

August 3, 2016 | By in LINUX HOWTO, MONITORING
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