it Articles


  • 2013-07-17
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Make your own L2 Firewall!

Is what I did this week during the SDN Course on Coursera :) Within mininet or with a real OpenFlow capable switch, you can point the switch to use a controller. The controller would figure out all the smart stuff and the switch only does what the controller tells it to …

  • 2013-07-10
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SDN Course on Coursera-2

Halfway now, in week3, and just finished the first programming assignment in the course Software Defined Networking. Quite happy with the course so far, the quizzes are not too hard if you actually listen to the video lectures and after taking Coursera's "Learn to Program: Crafting Quality Code" the python …

  • 2013-07-07
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SDN course on coursera

Even though I'm on summer holiday I'd squeeze in time for a Software-Defined Networking course on coursera! https://www.coursera.org/course/sdn It's given by a professor from Georgia University. It's still not too late to register, it's only on the second week (until tomorrow Monday 8/7) and …

  • 2013-04-29
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Mininet - Software Defined Networking

Mininet Mininet is a network emulator written in Python. With it you can create a test network consisting of many devices, for example inside your laptop. It's a lot more light-weight compared to emulating switches/routers in GSN3. Initially Mininet appears to be more about easily getting working network rather …

  • 2013-04-24
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Command View P6000 EVA Simulator 10.0

Due to somewhat popular demand here's another post detailing the steps for somewhat successfully installing HP P6000 Command View Simulator on Windows 7 x64. It can be a bitch. The older post is from 2011 with CV 9.4, this one also has PA - performance advisory bundled. Download: http://software …

  • 2013-04-19
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Studying for BCNE - Brocade Certified Network Engineer

In early April of 2013 Brocade had a great offer - ask for it and you'll get a voucher to an exam - for free! I took them up on their offer and scored a voucher for the BCNE (Brocade Certified Network Engineer). After that I noticed that Brocade also has a …

  • 2013-03-05
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P2000 API Auth String

Ever wanted to do monitoring of a P2000 or MSA2000 from HP? They are in secret Dot Hill hardware, for example DDN also resells these as for example EF3015. There is a nice nagios script written by Tom http://www.toms-blog.com/nagios-hp-msa-p2000-status-and-performance-monitor/ To use that you need an API …

  • 2013-02-26
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sage on ipv6.he.net

http://ipv6.he.net/certification/ This was really fun! If you complete this with your own domain and server you'll learn to set up these: set up IPv6 address and routing point your DNS to the IPv6 address - this would applies mostly if you have your own nameserver point the …

  • 2013-01-14
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Pythons

Ever thought about studying a bit of programming? Thought it was a too daunting task? I've just gone through the second lesson on learnstreet and it's quite fun! It doesn't take long to go through the first two lessons, so if you don't have much time you can spend a …

  • 2013-01-13
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IPv6

Do you have IPv6 connectivity? Perhaps a server and a domain name already set up? http://ipv6.he.net/ Some things you get to play with: check if you can view the page in IPv6 send an e-mail over IPv6 rDNS over IPv6 Quite fun way of learning about IPv6 …