Re: Hey, SiteFinder is back, again...

2007-11-05 Thread Stefan Bethke


Am 05.11.2007 um 17:16 schrieb Stephane Bortzmeyer:


3) Provide DNS recursors which do the mangling *and* block users,
either by filtering out port 53 or by giving them a RFC 1918 address
with no NAT for this port.

I've seen 1) and 2) in the wild and I am certain I will see 3) one day
or the other.


Just recently in NYC, the hotel internet connection did intercept  
any UDP traffic to *:53, redirecting it to their resolver.  Which did  
not only serve their own A records for names that should have returned  
NXDOMAIN, but also returned better answers than you normally would  
get (requesting pages from www.weather.com delivered pages from www.accuweather.com 
).  Of course it even did that after I had paid and clicked through  
their walled garden site.



Stefan

--
Stefan Bethke [EMAIL PROTECTED]   Fon +49 170 346 0140




Re: Can P2P applications learn to play fair on networks?

2007-10-29 Thread Stefan Bethke


[EMAIL PROTECTED] schrieb:

If P2P software relied on an ISP middlebox to mediate the transfers,
then each middlebox could optimize the local situation by using a whole
smorgasbord of tools.


Are there any examples of middleware being adopted by the market?  To me, it 
looks like the clear trend is away from using ISP-provided applications and 
services, towards pure packet pushing (cf. HTTP proxies, proprietary 
information services).  I'm highly sceptical that users would want to adopt 
any software that ties them more to their ISP, not less.



Stefan




Re: Using Mobile Phone email addys for monitoring

2007-09-07 Thread Stefan Bethke


Am 06.09.2007 um 23:22 schrieb matthew zeier:


Ken Simpson wrote:

It's more effective to spend the money on SMS messages. Mobile
providers are forced to use very aggressive anti spam measures, which
can add significant delays in message delivery.


Recommendations on software and modems?


gsmd (from gsmlib http://www.pxh.de/fs/gsmlib/), a couple of small  
scripts, and a Siemens MC35i, working nicely with nagios at $work.   
gsmlib should be able to talk to most any GSM device with a serial  
port (data cards included), since the AT commands for sending and  
receiving SMS are standardized.



Stefan

--
Stefan Bethke [EMAIL PROTECTED]   Fon +49 170 346 0140