Recent Articles

30 Most Frequently Used Hadoop HDFS Shell Commands

In this tutorial, we will walk you through the Hadoop Distributed File System (HDFS) commands you will need to manage files on HDFS. HDFS command is used most of the times when working with Hadoop File System. It includes various shell-like commands that directly interact with the Hadoop Distributed File System (HDFS) as well as other file […]

November 11, 2016 | By in UBUNTU HOWTO
| Reply More

Setup Hot Backups of MySQL with Percona Xtrabackup on Ubuntu

When backing up a database, you generally don't want to stop the database. Because if you stop it, your application will become unavailable. But if you do not stop it, your backup might end up inconsistent and useless, due to half done transactions being backed up. Percona have come up with good solution for incremental […]

November 10, 2016 | By
| 2 Replies More

How to Setup OwnCloud 9 with Nginx and OpenSSL on FreeBSD 11

OwnCloud is a PHP and MySQL based free and open source file sharing application platform which allows us to create our very own cloud storage platform. The OwnCloud server which is a free edition is released under GNU AGPLv3 license whereas the Enterprise edition is under OwnCloud Commercial license. It is a client-server architectural software […]

November 9, 2016 | By in UNIX
| Reply More

How to Setup Minecraft Multiplayer Server on Ubuntu 16.04

Minecraft is very popular sandbox game that is played by kids and grownups across entire globe. In this article we will show how to install a Minecraft server to play Minecraft with your friends in your own virtual world. You would need to buy the Minecraft game, to play it, and your friends will need […]

November 8, 2016 | By in UBUNTU HOWTO
| 2 Replies More

How to Setup VNC Server on Ubuntu 16.10 with ssh Tunneling

Traditional way to administer server is over ssh and command line. But sometimes you need to run some application with a GUI on a server, and since you typically don't sit next to server and even if you do, server might not have monitor and keyboard, you need some sort of remote desktop. VNC is […]

November 7, 2016 | By in UBUNTU HOWTO
| 1 Reply More

How to Setup CouchDB Replication on Ubuntu 16

In today article we will set up CouchDB replication on Ubuntu 16.10. CouchDB is NoSQL database much similar to cassandra we wrote about earlier. Rather than Cassandra's Java, CouchDB is written Erlang and it is Apache Software Foundation project since 2008. This database is document oriented, not unlike MongoDB. For this tutorial, you need two nodes running Ubuntu […]

November 4, 2016 | By
| Reply More

How to Setup lsyncd for Synchronize Directories to Remote Computers

If you want some directory of yours actively backed after every change, they are a lot of sync options to choose from. Software like csync, rsync, csync2, lsyncd and many others will all do the job, but in this article we will only review one of them. We will introduce features of lsyncd, a synchronization […]

November 3, 2016 | By in LINUX HOWTO
| 2 Replies More

How to Setup Percona Cluster with HAproxy Loadbalancer on CentOS 7

We earlier shown how to setup MariaDB Galera cluster with HAproxy, and today we will do the similar setup with Percona's distribution of MySQL. Percona is the company that has deep expertise with MySQL and MongoDB, and they make their own distributions of those databases as well as storage engines for both databases. Today we will […]

November 1, 2016 | By in LINUX HOWTO
| Reply More

How to Setup OwnCloud 9 on Debian 8 Using Nginx with Https

OwnCloud is an open source file sync & share software for everyone operating the free OwnCloud Server edition, to large enterprises and service providers operating the OwnCloud Enterprise Subscription. It provides a safe, secure, and compliant file synchronization and sharing solution. We can share one or more files and folders on your computer, and synchronize them with […]

October 31, 2016 | By in DEBIAN
| 4 Replies More

How to Setup MariaDB Galera Cluster with HAproxy on CentOS 7

In todays article we will install MariaDB Galera cluster with HAproxy for load balanced MariaDB and wordpress. Galera is active-active clustering technology, meaning that it can support writes on all nodes which are then replicated across cluster. There is also active-passive clustering, where only node is writable. We will also install HAproxy for load balancing […]

October 28, 2016 | By
| 2 Replies More

An UFW Firewall Guide to Enable, Deny, Allow, Delete Rules on Ubuntu

Firewall is important security component of every operating system.  Linux kernel has great packet filtering and port filtering framework which is called Netfilter. To have a complete firewall, the userspace command line frontends have been created. Most well known framework for managing Netfilter framework is iptables. However, some users find it too hard to master which […]

October 27, 2016 | By in UBUNTU HOWTO
| Reply More

How To Set Up Jenkins for Continuous Development Integration on Ubuntu 16

In this blog, we will set up jenkins and configure jenkins on ubuntu 16 for continuous development and continuous integration. Jenkins is a Continuous Integration server. Basically, Continuous Integration is the practice of running your tests on a non-developer machine automatically everytime someone pushes new code into the source repository. Before we set up jenkins, you need to […]

October 26, 2016 | By in UBUNTU HOWTO
| Reply More

How to Install and Manage Snap Packages on Ubuntu 16.10

Advanced packaging tool, known for acronym apt, have been used in Debian and derivatives for nearly two decades. Similarly on Red Hat based systems, the RPM is used for even longer. To fix shortcomings with this packaging system, AppImage, FlatPak and Snap have been created by various groups and companies.  Those packaging systems don't conflict with apt, nor rpm, […]

October 25, 2016 | By
| Reply More

How to Setup Active Directory Domain Controller on Ubuntu using Samba

SAMBA is an open source implementation of the SMB file sharing protocol that provides file and print services to SMB / CIFS clients. It helps in successfully networking your Ubuntu system with Windows clients, thereby providing and integrating with services common to Windows environments. These services assist the sharing of data and information about the computers and […]

October 24, 2016 | By in SAMBA
| Reply More