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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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How to Install Poptop VPN Server on CentOS 7
Continuing the VPN series, today we cover Poptop, or pptpd. It is easier to configure than other VPN software, but MS-CHAP-v2 encryption that it uses is not really secure, as we come to expect from...
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How to Install Rocket Chat on Ubuntu 16.04 with Docker
Rocket.Chat is a Web Chat Server, developed in JavaScript. It is an open source messaging APP built with Meteor fullstack framework. It is a great solution for communities and companies who need to...
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Run Command Parallel on Multiple Hosts using PDSH Tool
PDSH is a very smart little tool that enables you to issue the same command on multiple hosts at once, and see the output. It is a high-performance and parallel remote shell utility. It can run...
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How to Setup HAProxy in Ubuntu 16.04
HAProxy is an open-source high availability load balancing and proxy services tools for TCP and HTTP-based network applications. It is easy to use, suits for high volume websites and its seamless...
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How to Setup Cassandra Replication on Ubuntu 16.04
If you have data that is not suited for relational database, chances are you are looking for NoSQL solution. NoSQL options are diverse, Aerospike, MongoDB, Redis, and many others try to solve Big Data...
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How to Track Progress % of Commands (cp,dd,tar) in CentOS 6 / Fedora
When you copy a large file in terminal with simple cp command without flags, you might sometimes wonder whether it is really copying or the process got blocked somehow and it will actually never...
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6 Best Password Manager Tools for Linux
Today majority of Internet users are exposed to cyber attacks, not because they aren't using any best security measures, but because they are using weak passwords to secure their accounts. Passwords...
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How to Install Wine 1.9 on Ubuntu / Debian / Linux Mint
Saying that I don't like Windows would be an understatement. But now and then, need arises to run some windows software for some reason. For that good people of Wine Project have possible to run...
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