Tuesday, November 20, 2012

Snoop NFC RFID card with RTL-SDR dongle

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It's been a big year for radio fun! Playing with NFC / RFID tags recently it occurred to me that the RTL-SDR dongles could potentially ...
2 comments:
Friday, April 13, 2012

Mongodb pros and cons - scalability, management in production

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Here's a nice easy one... Don't use mongodb, tune your SQL properly, fool! I experimented with it a while ago and what I found almos...
Wednesday, March 7, 2012

"Mysql server has gone away" or "Lost connection to mysql server" when using Amazon RDS for for backup or whatev's

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Hey, OMFG what a PITA. You run long mysql jobs, especially on an amazon RDS instance, especially e.g. backup, and it randomly fails, esp as ...
Monday, January 23, 2012

Tedious issues escaping/quoting strings for MySQL? Use hex! It's awesome!

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Hiya, Ok sure yes you 'escape' all your strings for SQL (i.e. replace `'` with \' and so on for other nonprintable). Someti...
Wednesday, January 18, 2012

See wikipedia during january 18th blackout

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Yes, yes wikipedia, we know you're all radical and cool. Anyway, just append ?banner=none to the end of your URL, for example; Look it w...
Friday, January 6, 2012

Obscure packetization bug in Verizon cellular HTTP proxy 'Harmony'! Does your app fail on VZW cell but work on wifi?

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Wow this is a fucking bug and a half; (On iPhone, but applies to everything) Verizon currently appears to proxy any HTTP request over any po...
4 comments:
Tuesday, November 9, 2010

Rewriting (proxying) a TCP stream in one line

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Damn unix is great... Step 1: In a shell, set up netcat to listen on TCP 5500: nc -l -p 5500 Step 2: In another shell/on an intermediate m...