FreeNAS: Open Source Network Storage (At a Glance)

FreeNAS: Open Source Network Storage (At a Glance)

What’s the simplest way to create network-based centralized storage? Buy a NAS appliance and hook it to your network. But what if, there was an open-source software (downloaded more than 5 million times) that enables you to build your own feature-rich NAS using commodity hardware, without hardware lock-in and without license costs? Welcome FreeNAS.... »

What is a WAN Emulator?

Most organizations have multiple branches and employees access applications over Leased Lines, MPLS Lines, VPN over Internet Leased Lines and even VPN over broadband networks. In such a scenario, how would you ensure that the applications hosted in your data center will adhere to certain (minimum) performance levels for everyone? Welcome the WAN Emulator.... »

Collectd: Open Source Tool for Collecting Statistics & Performance Measurements for IT Devices

Collectd: Open Source Tool for Collecting Statistics & Performance Measurements for IT Devices

Collectd is a free & open source tool that gathers statistics & performance data for IT systems. It is useful for performance analysis and capacity planning. Written in C, it can run on varied platforms like computers, servers, network systems and even embedded systems. What can you do with Collectd? Using appropriate plugins &... »

Server Virtualization Next: Paravirtualization & Hardware-assisted Virtualization?

Server Virtualization Next: Paravirtualization & Hardware-assisted Virtualization?

Server Virtualization has enabled IT departments to run multiple applications and multiple Operating Systems within a single server. This not only reduced the total number of servers required (and networking, cooling requirements, etc.,) but has also reduced the under-utilization of high-performance servers. But, doesn’t virtualization come with its own processing overhead and requirements? Can... »

Track Wi-Fi Channels of Nearby Wireless Networks: inSSIDer

Track Wi-Fi Channels of Nearby Wireless Networks: inSSIDer

If you are viewing this post from your mobile or you don’t want to read, you can watch/listen to the below embedded podcast for this post. Direct youtube link: http://youtu.be/FpKcW0s4OPU If you are short of time, you can just scan through the highlights (images) below. Introduction: inSSIDer is an open source/free software application developed by... »

Open Source NAC (Network Access Control): PacketFence

Open Source NAC (Network Access Control): PacketFence

PacketFence is an Open Source & Free to download/use Network Access Control (NAC) application. Podcast: If you don’t want to/cannot read the entire article (if you are browsing from your smart phone, for example), you can view/listen to the below embedded Youtube podcast for this article. Direct Youtube link: http://youtu.be/rH9hqvd__AM Highlights: Also, if you don’t have... »

Open Source DLP – Data Leak/Loss Prevention Application: MyDLP

Open Source DLP – Data Leak/Loss Prevention Application: MyDLP

MyDLP is an Open Source Data Loss/Leak Prevention (DLP) application. You could also listen to the above embedded Youtube podcast of this article. Direct Youtube link: http://youtu.be/4cVuQm76cQk Why would anyone want to use a DLP application? How much ever it might hurt, we need to admit that human beings make mistakes. What if, one... »

The Open-Source Technology Series for Network/IT Admin – BEGINS

  If you don’t want to read the articles (for this open-source network/IT tools series), you could see or listen to the Youtube presentation/podcast. Youtube short-link: http://youtu.be/nKUfUtFI82k What’s this SERIES ABOUT? This is an INTRODUCTORY post to intimate y’all about the SERIES of posts on OPEN-SOURCE TOOLS/TECHNOLOGIES for NETWORK/IT administrators, that will be appearing in... »

When will H.265 (HEVC) Video Conferencing Systems be released?

When will H.265 (HEVC) Video Conferencing Systems be released?

What is H.265/HEVC? H.265 or High Efficiency Video Coding (HEVC) is the successor to the MOST POPULAR and the MOST WIDELY used H.264 (AVC) video compression protocol. The H.264 codec is currently being used by most video conferencing/video surveillance systems. HEVC/H.265 can provide the SAME video quality at HALF bit-rate (bandwidth) when compared to H.264, and... »

I am Compiling a List of Free/Open Source Tools for IT/Network Admin – You can Help!

Hello People, I am compiling a list of Free & Open Source (preferably) tools available for IT/Network administrators and it will possibly be released as an eBook. There are free & open source tools available for almost every area of IT/Network administration, but I don’t find a comprehensive listing of quality tools that can... »

Passive Optical LAN for Enterprise Networks – Advantages & Limitations

When you think of LAN (Local Area Network), you generally think of Cat 5/6 cables and network switches, don’t you? But certain developments in the carrier networking technologies has made optical fiber networking feasible, and maybe even beneficial, for the Enterprise LAN. Will all our copper cables be replaced by fiber cables sometime in... »

July 26 is the Annual SysAdmin Day!!

This website has decided that today, July 26 will be the annual Sysadmin Day/System Administrator Appreciation Day. When you click on that link, a HORROR slide-show will appear and I strongly recommend you to view all the pictures, and determine how close they are to your company set-up Today is the day YOU can... »

An Example set by French Govt: Use Open-source Productivity Suits for Public Deptartments

An Example set by French Govt: Use Open-source Productivity Suits for Public Deptartments

How long are Governments around the world going to keep telling their people that open-source tools cannot be used for large public organizations/Govt. departments? Today, let us look at an excellent example set by the French Govt. as they transition 500,000 desktops to the free open-source office productivity suite – LibreOffice. And, do you... »

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