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  • Linux
  • : Install Hadoop on multiple nodes using Ubuntu 15.10.

    We give a brief introduction of Hadoop in previous tutorial, for today we will learn to install Hadoop on multiple nodes, in demonstration scenario we will be using Ubuntu 15.10 as Desktop, we will create 2 Slave or Data Nodes along with 1 Name node. Make sure you have shared ssh public keys with Data nodes and assign appropriate IP addresses, host name and other Hadoop services (we will mention in tutorial) required to run Hadoop multiple cluster node.

    Posted on: Wednesday February 10 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : Essay on Haoop Part -I.

    Unixmen is continuously trying to improve the type of knowledgebase provided, in this effort we are trying to initiate some big stories of selective topics which will include not only how to? But what is? Type of information including history, relevance and in depth information, I am going to term this series under the title of “ESSEY”, today’s effort is to provide a detailed introduction about Hadoop, let’s start.

    Posted on: Tuesday February 09 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : Journey To Ubuntu Phone Planet.

    These days iOS and Android rule the world of transportable devices OS, but is there anything to match with them? is there any OS with Linux kernel and GNU fan for Cellphones and Tablets? The answer is “yes there is”, Ubuntu is the answer and right now it officially can be installed on the following devices :

    Posted on: Monday February 08 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : How to Install Redmine 3 with Nginx on Ubuntu 15.10.

    Redmine is an open source project management and issue tracking tool based on the Ruby on Rails Framework. It is web-based, so you can use it from any client platform that provides a web browser. It is well suited for multi-language teams as it contains translations for 42 languages. You can track multiple projects in one installation, it has an integrated support for news, document management, file management, a support wiki. You can connect it with other applications by LDAP authentication and the REST API.

    Posted on: Sunday February 07 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • : Thoughts on Monitoring file changes with Linux over the network.

    Monitoring a directory for changes with Linux is possible through the well-known mechanism inotify. With inotify it‘s possible to set a watch on a directory, configure it to watch events on the contents, and you‘ll receive messages on a file descriptor when something happens. This works perfectly when the directory is on local storage, like a hard drive, SSD or a USB drive, But it is not sufficient when the directory is on a network filesystem when the storage is on another computer. Another user working in the same directory, connected via the same or another filesystem, can remove a file and the watch you‘ve set on it will not get notified.

    Posted on: Saturday February 06 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • : How to reset the root password on Linux and FreeBSD.

    Listed below are the step by step procedures to reset the root password in different versions of CentOS, CoreOS, Debian, Ubuntu and FreeBSD. Begin this procedure by booting your server into single user mode. If you have direct (physical access) to the server, then just reboot it and proceed with the steps for your OS below. In case that the server is in a datacenter and only accessible by remote console, begin with accessing customer portal of your server hosting provider and search for the KVM or server console. The rest of options are different and dependent on bootloader version in a machine.

    Posted on: Friday February 05 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • Linux
  • : All About PING Command.

    All network administrators and IT professionals are well known with the ping command. It’s a life saving command to check the basic connectivity between two hosts like host to server or host to host. Let’s jump into it and know more in details.

    Posted on: Wednesday February 03 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : Getting started with Lets Encrypt SSL Certificates on Ubuntu.

    This tutorial will guide you through your very first configuration of an SSL website with Let‘s Encrypt certification. Let‘s Encrypt is a new SSL authority that provides free SSL certificates. We are going to use two existing tutorials (“How to setup an intermediate compatible SSL website with Let‘s Encrypt certificate” and “The Perfect Server - Ubuntu 15.10 (Wily Werewolf) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3”).

    Posted on: Tuesday February 02 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • : CentOS 6.7 Tacacs+ GNS3(Cisco 3600) Domain Controller integration.

    We already knows about TACACS+ from “FreeBSD TACACS+ GNS3 and Cisco 3700 Router” article. But in your corporate company may be requirement SSN(Single Sign on) and accounting for network devices. For that you must integrate your Tacacs+ server with your corporate Domain Controller. This means in your Domain Controller have some groups for access to network device access. For users in this groups have different access level to network devices. If the user is netadmin then he will get full access and if the user is operator he will get limited access to network devices. This article will help you to do this.

    Posted on: Monday February 01 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : How to Install Piwik with Nginx on Ubuntu 15.10.

    Piwik is the leading open source web analytics application, it has been developed to provide an alternative to google-analytics. Piwik gives you full control over your data with it‘s user privacy protection features and provides nice customizable report formats. Piwik allows you to monitor different websites from one Piwik installation and displays the reports for the visitor geo-location, visitor access, page views, visitor operating-system, browser etc.

    Posted on: Sunday January 31 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • Linux
  • : How To Install And Configure Qmail In OpenSUSE 42.1.

    The title says it all. Right? Today, we will know how we can install and configure Qmail (a mailing agent) on our OpenSUSE 42.1 Linux distribution so that our server act like a mail server. Mail server based on Linux platform is the best choice due to many reasons like security, maintenance, less troubleshooting etc etc.

    Posted on: Friday January 29 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : How to configure your gamepad on Ubuntu.

    Linux is maybe the least popular platform for gamers, however the interest to set up and configure gamepads on it has sparked, especially since Valve‘s decision to make multiple game titles available for Linux on Steam. The situation on the hardware support is nothing like it used to be, as most popular gamepads are supported out of the box since Linux kernel 3.19 and things are only getting better.

    Posted on: Thursday January 28 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • : All About Folder Sharing on OpenSUSE 42.1.

    Sharing files / folders is one of the most common thing that every that we need to do now & then. Today, we will learn how we can share a folder with all sorts of file sharing methods that we have.

    Posted on: Wednesday January 27 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • Linux
  • : OpenFire Jitsi as Skype(desktop sharing) and Temviewer(remote control).

    Openfire – Jabber/XMPP is a server written in JAVA. This is free software and is also official support. Management has a WEB panel and it works on 9090 (http) and 9091 (https) ports.It supports Plugins(extensions), SSL/TLS, can connect to the database(Oracle, MSSQL, PostgreSQL, DB2, Sybase ASE, MySQL or internal database HSQLDB) via JDBC, can connect LDAP groups and filter by groups, has the ability of user’s registration based on to different sources and supporting different languages.

    Posted on: Monday January 25 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : Setting Up a Forwarding DNS Server On Debian.

    The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most prominently, it translates more readily memorized domain names to the numerical IP addresses needed for the purpose of locating and identifying computer services and device with the underlying network protocols. By providing a worldwide, distributed directory service, the Domain Name System is an essential component of the functionality of the Internet.

    Posted on: Sunday January 24 2016

    Visit The Unixmen Home Page at www.unixmen.com


  • Linux
  • : How to Install Graylog2 and Elasticsearch on Ubuntu 15.10.

    Elasticsearch is a distributed search server based on Lucene that is available as OpenSource software. It is a full-text search engine, written in Java, with an HTTP web interface and it supports JSON documents natively. Elasticsearch can be used to search all kinds of documents and provides a scalable search and real-time search solution. Elasticsearch is used by many large organizations Mozilla, Netflix, Stack Exchange etc.

    Posted on: Saturday January 23 2016

    Visit The HowtoForge Home Page at www.howtoforge.com


  • Linux
  • : Ubuntu14.04 OpenVPN FreeRADIUS Active Directory integration.

    Our purpose is install and configure OpenVPN server on Ubuntu 14.04 and after integrate this with FreeRADIUS. After successful configuration OpenVPN with FreeRADIUS, we will integrate FreeRADIUS to Active Directory. Then, user from AD LDAP group must connect to OpenVPN server. The network infrastructure will be as follows:

    Posted on: Friday January 22 2016

    Visit The Unixmen Home Page at www.unixmen.com


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