http://wiki.openwrt.org/toh/tp-link/tl-wr703n
Neat little system for possible embedded controller.
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Communications Archive
TP-Link TL-WR703N – OpenWrt Wiki
Posted April 10, 2013 By Landis VT1/ESF Alarm Conditions
Posted March 26, 2013 By Landis Vhttp://www.whitsnet.com/Tutorials/T1/
It always seems to be tough to find the T1 alarm documentation I’m looking for when I need it. This page provides a nice little graphic that shows what alarms are present and in which direction the alarm indications are being sent (RAI/yellow alarm and AIS/blue alarm).
Filed in Communications, Links
ef.gy :: Using nginx as a forward proxy server for fun and glory
Posted March 7, 2013 By Landis VGet Your Business Online Today
Posted February 20, 2013 By Landis VOf course Google has a motive to get people online, but they’re right. It’s very simple to get a presence online, and it doesn’t cost all that much – less than $7/month for a package I use for my -personal- Internet presence, and there are even lower cost and “free” offerings. I still believe the immediate benefit for absolutely anyone who does it is the @yourdomain.com e-mail, but you might have something even bigger.
I don’t particularly like the Intuit “website in a package” they tie in with this, but there are a lot of other ways to do it. But having the ability to build your Internet presence – and NOT just through Facebook or Google+ – and just keeping it in mind, thinking about how you might be able to parallel or change your brick-and-mortar with an online presence has huge potential.
If you’ve thought about it but not known how to approach it, or if you’ve never thought about it and just have questions and don’t know who to ask, ask me.
A Quick Aruba Networks Spectrum Analysis How-To
Posted January 11, 2013 By Landis VThis is incredibly slick. Had kind of a bitch of a time getting my AP shifted into a spectrum monitor profile, but I suspect that’s because my browser was being very stupid and my computer needed to reboot.
Low End Box – Cheap VPS Hosting Providers Listing & Reviews
Posted December 28, 2012 By Landis VThere have been a few times I’ve thought it would be nice to have a small, “low end box” somewhere for various tasks and viewpoints to the world. They list some pretty good prices here, down to about a dollar a month for some of the very lightweight solutions.
Synthetic Traffic Generation
Posted November 27, 2012 By Landis VI recently had a need to create a multitude of similar TCP sessions from a host to itself. Wanted to document a few of the resources and potentially useful applications/frameworks I reviewed or considered while putting something together. This will be primarily Windows focused since that’s the platform I’m investigating/troubleshooting, but I’m sure I will make detours into other arenas as I do my research. Sessions will be short-lived, complete sessions from SYN to FIN, and sourced from an ephemeral port on the ethernet-associated IP of a host to a high (greater than 1024) port on the same ethernet IP. This will be done to test the behavior of the system – and hosted applications – at a high ratio of TCP sessions to maximum concurrent TCP sessions, and at various levels of sessions in (and configured timeout values for) TCP sessions in TIME_WAIT state (see http://smallvoid.com/article/winnt-tcpip-max-limit.html for additional detail on the topic and parameters to be tested).
NMAP in conjunction with its scripting engine may be a quick and easy fit for this scenario.
http://info.iet.unipi.it/~luigi/dummynet/
Dummynet allows the configuration of a test network with user determined behavior in order to emulate the characteristics of a real-world network.
http://www.cs.unc.edu/~jeffay/papers/BROADNETS-07.pdf
Modeling and Generating TCP Application Workloads
Provides a methodology for capturing network flows for utilization in generation of similar workflows in the test/development environment.
http://www.item.ntnu.no/people/personalpages/fac/poulh/gensyn
GenSyn appears to isolate the network component of testing from the user component, and uses modeling to create the user portion of the session and an actual network for modeling that component. Looks to be well built and developed and to extend several areas of past research, and may have some use cases in providing an ideal modeling of network behavior in the future, but I would have to say is overkill and too steep a learning curve for my current needs (as much as I’d like to be, I’m not yet any level of statistician).
http://code.google.com/p/ostinato/
Ostinato looks to be a very good possibility if I can make it generate a large number of TCP sessions in series. Maybe this is feasible by throwing it in a “for, next” loop… didn’t look to be built into the scripting from an initial cursory glance. Will run on Windows, that’s a plus.
