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Random Hackepedia

December 3rd, 2010

The RH for this week is Ethereal


Math Problem (angle to satellite)

December 1st, 2010

Here is a math problem. Get out your old Trigonometry notes and solve the following. A satellite (Galaxy 15 for illustration purposes) is 35,779 kilometers above the surface of the earth in Geostationary orbit. Given that the earth has a radius of 6371 kilometers find out what the angle from the ground to the satellite is given that someone stands at 49 degrees north. Here is a picture:

Line ACB is perpendicular to line EC (6371 kilometers). Line EBD is 6371 kilometers + 35,779 kilometers, so 42150 kilometers. What we're looking for solving is angle BCD.


Donated to FreeBSD

November 26th, 2010

I shoulda done this a long time ago but I finally got some money in my paypal account and I donated 10 dollars to the FreeBSD Foundation.

I hope they can use it wisely.


Random Hackepedia

November 26th, 2010

The RH for this week is TCPdump


Ordered two books

November 21st, 2010

I just ordered 2 books from Amazon.de. One is Pro DNS and Bind from Ron Aitchison and the other is called "DNSSEC" I'm unsure of the author. The latter is a compilation of RFC's and other material related to DNSSEC, which I want to use in my implementation of wildcarddnsd. Hopefully the books will help me understand DNSSEC better so that I can implement this in the authoritative server side soon.


New patchrelease for wildcarddnsd

November 15th, 2010

I should have done this a long time ago but I just released the file wildcarddnsd-beta5p4.tgz to sourceforge, this has a fix that makes the tcp and udp interaction on the server more reliable. The download is here and the branch for BETA_5STABLE is here. If you get TCP requests to a running wildcarddnsd you really want to get this.

In other news, I'm delighted to say that people from Indonesia are the top downloaders of wildcarddnsd according to the stats at sourceforge.net. Thank you! Next are Indians and Russians in the top three. Thanks to you too. I noticed a lot of asians are interested in wildcarddnsd, which is cool.

As for BETA_6 it will probably take until next year. BETA_6 will have recursing and caching. It has it in -current now but it's broken somewhat and needs a good debugging.


Random Hackepedia

November 12th, 2010

The RH for this week is Wait


More IPv6 news from the BBC

November 11th, 2010

Vint Cerf is in this BBC article warning over the IPv6 change. Date when we run out of addresses is set at 2012.


Random Hackepedia

November 5th, 2010

The RH for this week is nfsd.


Glad to be of help

October 31st, 2010

OpenSMTPd the OpenBSD mail daemon that is in the works, had a call for testers on the new DNS code that the daemon is using. Due to my work with wildcarddnsd I'm somewhat familiar with DNS and was able to make a contribution. Not in the form of patches which would have been nice but questioning whether the opensmtpd dns code withstood a certain scenario. It turns out given a second opinion that I was "totally right". This really made me happy and the opensmtpd is more robust as a result. This is why open source is so good because people can read the code and spot errors before they write exploit code to stress test an application (black box). If I had to write the exploit code it would have taken way more time than what it took up.


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