RSSCategory: UBUNTU HOWTO

How to Edit Video Using Avidemux on Linux

If you are in need to do video editing, Linux got you covered on multiple basis. For professional stuff there are Blender and Kdenlive, but former has a steep learning curve and later has a lot of KDE dependencies that you might not like to install if you are not using KDE. So in this […]

September 22, 2016 | By in OPEN SOURCE TOOLS
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Setup Graylog2 Log Analyzer to Store and Search Log Errors

Graylog2 is an open-source log analyzer tool that makes use of MongoDB and ElasticSearch for storing and searching through log errors. It’s mainly used by developers to detect and fix errors in their applications.  Graylog is a more finished and "enterprise-ready" product out of the box as compared with other log analyzer tools. Versions used: […]

September 21, 2016 | By
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How to Install fprobe (Netflow) Tool on IPFire Firewall

This tutorial is about the compilation and installation of NetFlow tool (fprobe) on the IPFire firewall. Fprobe  is libpcap based tool which collects network traffic data and emit output as flows (NetFlow) towards the specified collector. NetFlow protocol supported devices collects all IP traffic and forward the collected data to a server for further analysis […]

September 14, 2016 | By in FIREWALL
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Two Methods to Protect your Data using Ubuntu Disk Encryption

User privacy and security is very hot topic nowadays, with various companies and three letter agencies snooping and mining your data, seemingly at every step. With this article, we take a break from VPN guides to show how can you protect your local data.  For example if your computer gets into wrong hands. In this […]

September 12, 2016 | By
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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 problem in different ways. In this article we will concentrate on replication with cassandra. This database actually got the name from Greek […]

September 1, 2016 | By
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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 integration into  existing architectures. It offers transparent connections, server offloading, enforcement of policies, limit connections apart from its primary function of proxy service. In […]

August 31, 2016 | By in NETWORK
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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
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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 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
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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
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An Ultimate Guide to Secure Ubuntu Host

Ubuntu is termed as the highly secured operating system available but it has flaws in its default install like every other operating system. To remove these weaknesses, IT Security specialist has issued guidelines to combat your system's back-doors/weaknesses and protect you from some of the common Ubuntu exploits. In this guide we will look at few […]

July 29, 2016 | By in SECURITY
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How To Create Ceph Storage Cluster on Ubuntu 16.04

Ceph is one of the most exciting open source storage technologies to come out in recent years. Scalable to exabytes, and extendable to multiple datacenters, the Ceph developers have made it easy for System Administrators and Infrastructure Architects to deploy their software. This article will offer a step-by-step guide on how to create a basic […]

July 22, 2016 | By in CLUSTER,STORAGE
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How to Setup Mail Server Using Postfix, MariaDB, Dovecot and Roundcube

Hello everybody, today we are going to setup mail server using Postfix, Devcot and MariaDB on Ubuntu 16.04 LTS. In this article we will shows you how to setup Postfix (smtp server), Dovecot (imap/pop server) and MariaDB to store information on virtual domains and users. The task of the smtp server is to accept incoming […]

July 13, 2016 | By in MAIL SERVER
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How to Add Host and Manage Services in Icinga2

In my previous article, I've explained how to install and configure an Icinga2 with Icinga Web2 interface. Now it's time to introduce some hosts to our monitoring system.  Unlike Nagios, we can add the hosts automatically to the Icinga2 systems. The configuration is quite simple and easy compared to other monitoring systems. As stated before,  the […]

July 1, 2016 | By in MONITORING
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