Collection of useful, relevant or just fun places on the Internets for 4th September 2012 and a bit commentary about what I’ve found interesting about them:
Fwd: Advance notice: Microsoft Windows 8 and Cisco centralised wireless incompatibility. | EDUCAUSE.edu – Holy rotary sewage pumps, Batman!!!
Problem: Microsoft Windows 8, to be released on October 26th, is among the first clients to support IEEE 802.11w natively in the OS. Clients running 802.11w fail to connect to Cisco’s MFP capable APs because of interoperability issues in the service capability negotiation. It is /not/ possible to address this by simply disabling MFP on the Cisco Infrastructure, and Microsoft confirm that Windows 8 does not provide any way (e.g., RegKey, Group Policy) to turn
off 802.11w as it is considered a positive feature to always have turned on for security purposes. The Cisco bug ID tracking this is CSCua29504.
That’s why we pay the big vendors lots of money to solve these problem for us…. oh, wait…..
VeriFlow: Verifying Network-Wide Invariants in Real Time – Veriflow – testing OpenFlow rule bases for compliance in close to real time. Fascinating.
Our prototype implementation of VeriFlow checks OpenFlow [13] and IP forwarding rules. We microbenchmarked
VeriFlow by simulating a real IP network using real BGP
traces collected from Route Views [4]. We also evaluated
its overhead relative to NOX [10] in an emulated OpenFlow
network using Mininet [1]. We find that VeriFlow is able to
verify network invariants within hundreds of microseconds
as new rules are introduced into the network. VeriFlow’s
verification phase has little impact on network performance
and inflates TCP connection setup latency by a manageable
amount, around 7% on average. In summary, our key contribution is to present the first tool that can check networkwide invariants in real time.
FREE Wireless WiFi Site Survey Software for MAC OS X – Not sure why it’s free but find it here
NetSpot is a new wireless survey software for Mac OS X. Find out what your Wi-Fi network is capable of right now, it’s FREE! All you need to run your wireless site survey is your MacBook with native Wi-Fi / AirPort adapter. No special knowledge required. Exceptional simplicity, only 2 steps to get your first reports: survey Wi-Fi network and apply sleek visualizations
Found via @MrsYisWhy
EtherealMind Career Tips for the Networking Industry — EtherealMind – My post from October 2010 about career advice. A lot of email lately asking for career advice so I’ll link to it again.
Many people have asked for career advice on living and working in the Networking Industry. I’ve covered this many times, in many articles and I’m kind of tired of the whole issue. So here, I hope, are my final comments on managing your career, keeping a balanced viewpoint and getting on with whatever life you choose to lead.
Your PC Just Crashed? Don’t Blame Microsoft | Wired Enterprise | Wired.com – Memory modules could be the cause of many software problems. Wonder how often network equipment is affected by faulty or poor quality memory. Also, would this be the argument for genuine memory instead of third party ? I have no answers, just questions.
In 2007, University of Toronto professor Bianca Schroeder got access to Google’s data centers, where she collected a treasure trove of information on how frequently the company’s custom-designed Linux systems crapped out. She found a lot more errors than they expected. And furthermore, about eight percent of Google’s memory chips were responsible for 90 percent of the problems. Sometimes it happened every few minutes.
Why Remote Workers Are More (Yes, More) Engaged – Scott Edinger – Harvard Business Review – Most people still aren’t convinced.
The team members who were not in the same location with their leaders were more engaged and committed — and rated the same leader higher — than team members sitting right nearby. While the differences were not enormous (a couple of tenths of a point in both categories), they were enough to provoke some interesting speculations as to why this might be happening.
What Successful People Do With The First Hour Of Their Work Day | Fast Company – I’m going to try this.
How much does the first hour of every day matter? As it turns out, a lot. It can be the hour you see everything clearly, get one real thing done, and focus on the human side of work rather than your task list.
The incredible story of the first PC, from 1965 – A great story about a talented group of people. Well worth a few minutes to read it.
Almost 50 years ago, a small team at the Italian company Olivetti managed to do what no one had done before them; they created a computer small enough to fit on a desk, and could be used by regular people. It was the Programma 101, what many consider to be the world’s first personal computer.
OCSP stapling – Wikipedia, the free encyclopedia – This looks like a good idea not going anywhere. Although OpenSSL support might get it moving. OCSP is seriously broken when using CRL.
OCSP stapling is described in RFC 4366, section 3.6, but has not seen broad deployment to date, however this is changing. The OpenSSL project included support in their 0.9.8g release with the assistance of a grant from the Mozilla Foundation.
Lexmark dumps inkjet arm, sacks 1,700 • The Register – Most likely the beginning of a long slowdown for inkjet printers as people stop printing photos at home and use computers instead.
Lexmark is to shut down its inkjet printing manufacturing and research operations, although it will continue to support and supply existing hardware and is keeping its laser printing division.
