Docker
This is step by step guide on how to push Docker Image to Docker Hub registry. To get started with this...
This blog post describes how to automate the bare metal provisioning of physical and virtual machines through Razor. Razor is an...
In my previous blog post we talked about how to pull images, create containers, start and stop the containers, today we are...
This is a step by step guide for getting started with Docker. This guide starts with a fresh CentOS 7.0 host...
This blog post describes how to run Apache Hadoop over the open source distributed parallel file system like Lustre. Hadoop is...
Few months back I tried setting up Puppet on Solaris platform. Puppetlabs provides bits for Puppet Enterprise software for Solaris in...
By default, the Iperf client connects to the Iperf server on the TCP port 5001 and the bandwidth displayed by Iperf...
Here is a helpful script which just setup 1 OpenStack Juno controller and 1 compute node in an easy way: File:...
Dockers containers are revolutionizing the cloud computing world, spreading everywhere and powering developers world-wide to automate deployment of applications as a...
Are you running out of space while creating more and more containers? Here is a guide to change the default docker...
Are you getting the below error while starting with the fresh docker installation on CentOS 7.0? /usr/bin/docker: relocation error: /usr/bin/docker: symbol...
Want to know the inactive users on your Linux machine who have not been using the machine since long time? The...
Are you working in restricted corporate environment? Are you looking for how to run Docker behind the firewall.You can always specify...
Want to restrict simultaneous number of logins attempt on Linux machine? Here is the quick way of doing it. 1. Edit...
I am very thrilled and excited about Packtpub publisher’s recently published “PowerCLI Cookbook”. I have been part of a reveiwer team...
Welcome Readers !! This is a second series of VMware vSphere Q/A which is emphasized on ESXi internals and related feature...
What is Docker? Docker is a lightweight containerization technology that has gained widespread popularity in recent years. What does Docker uses?...
Docker is a new open source tool based on Linux container technology (LXC). LXC is an OS level virtualization method for...
Looking for VMware vSphere High Availability based Interview questions? I have attempted to gather important interview questions which you might find...
Setting up Salt Halite is not straightforward process. Its a WebUI for Salt master where you can easily run commands and...
SaltStack is an extremely fast and scalable systems and configuration management software for predictive orchestration, cloud and data center automation, server...
Are you preparing for Hadoop Interview? Have you spent last several hours to get the collection of Hadoop MapReduce questions? Are...
In today’s session, we are going to quickstart writing a basic puppet module. A Very simple example could be creating a...
Puppet is an open source framework and toolset for managing the configuration of computer systems. Puppet can be used to manage...
Last week I thought of setting up Nagios on my Linux Box.I installed a fresh piece of RHEL on my Virtualbox...
While attending RHCE examination, I faced a lot of question related to Apache. While installation and configuration of Apache was the...
I thought of starting my day today with Open-Xchange. I had Vmware Workstation installed on one of Windows 7 Enterprise machine....
Today we are going to learn about Puppet Modules. What is Puppet Modules? Puppetlabs defines it as “Modules are self-contained bundles...
Today is the day 1 of Learn Puppet with Me. I am starting this thread for those who want to learn...
RAID 1 creates a mirror on the second drive. .You will need to create RAID aware partitions on your drives before...
RAID 0 will create striping to increase read/write speeds as the data can be read and written on separate disks at...
I read this interesting mailing thread few weeks back. I won’t be late to share this with open source enthusiast like you....
Recently one of my colleague called me up with a problem statement where he was finding difficulty configuring JBOSS through puppet....
My friend was running a cybercafe center. He has dozens of ESXi running 100 of VMs. He was using Dell Multi-UPS...
Installing Java Development toolkit on Linux is always matter of difficulty since Oracle provides both RPM and tarballs in their official...
It has been long I was thinking of writing something about DNS(Domain Name Server). DNS is a database of the IP...
Today morning I started my day testing with Multicast Packet Filtering. I had buntu 12.04.1 and CentOS 6.5 in my VM...
A hyperthreaded processor has the same number of function units as an older, non-hyperthreaded processor. It just has two execution contexts,...
FTP refers to File Transfer Protocol. By default, Red Hat supports vsftp. If you do minimal RHEL installation, you mightn’t have...
“Can Linux be installed without swap space?”. This question was asked to me on one of Linux System admin interview. It...
I was just hanging around blogs until I cam across one nice piece of setting up centralized Logging setup.I thought to...
Sometimes you might need setting up Password-less SSH for running script or for application where you dont want to use password...
SmartFoxServer is a massive multiplayer platform for building games, MMO communities, virtual worlds, realtime multiplayer games. To setup SFS, in short...
In the previous article we saw the practical implication of setting up a samba share.In this article we will explore more...
Samba is an important component to seamlessly integrate Linux/Unix Servers and Desktops into Active Directory environments using the winbind daemon.In simple...
If you are a system admin who is still sticking to Clonezilla, you must probably look out to try FOG –...
Puppet is an IT automation tool which has already gained popularity among the system admins, developers and Cloud architects. Whether its...
Ansible is an IT automation tool. It can configure systems, deploy software, and orchestrate more advanced IT tasks such as continuous...
Yesterday I attended Open Source India 2014 event which happened in NIMHANS Convention Center, Bengaluru. If you are new to OSI,...
Getting skype working on CentOS 6.5 has been a daunting job for lot of system administrators. Usually I found system administrators...
Automation always saves your considerable time. Especially when you have to follow the similar step for hundreds of machine, automated scripts...
Redmine built through Ruby on Rails has been impressive free and open source web-based project management. I have been Trac quite...
This is an introductory post on Hadoop for new begineers who want step by step instruction for deploying Hadoop on the...
