Archive for January 2004

Using Device Polling and More to Improve Packet Capture

Luca Deri, in Improving Passive Packet Capture: Beyond Device Polling (pdf) shows
radical (and appalling) differences in packet capture performance among Windows, FreeBSD, and Linux machines, due to
differences in device drivers. The paper recommends use of device polling, and the author also implemented a ring-buffer version of libpcap.

[via TaoSecurity]

Microsoft ships GPL’d software

sourcefrog
via taint.org:

Their Computational
Clustering Technical Preview Toolkit
includes the
PLAPACK Parallel
Linear Algebra Package, which is released
under the GPL
.
Microsoft also ship some GPL’d GNU utilities in their Services
for Unix
package.

Apple XGrid

Apple Previews Xgrid Technology at MacWorld Expo.
There’s also the
Apple Xgrid web site.
As one would expect from Apple, beautiful elegant design that somehow attracts the love of developers even when it doesn’t even try to create to open standards or adhere to existing ones.

Empirical Analysis of Internet Filtering in China

This might be affecting the University of Rochester (I’m looking into it):
Trouble with Chinese applicants/customers reaching your web site?
Maybe your DNS server is blocked.

See the excellent summary of the situation from Zittrain and Edelman:
Empirical Analysis of Internet Filtering in China.

Caltech, Columbia, MIT, and U.Virginia are known victims. NorthWestern U
is also affected.

Did this problem increase in November?
See notes in interesting-people
and
Politech.

Interestingly, as of today, only one (Columbia) of the five .edu zones listed above has off-site secondary DNS servers.

MS Word hidden data

Simon Byers: ATAC: Abusable Technologies Awareness Center: Hidden data roundup (Microsoft Word in particular).

Corvigo MailGate “intent-based filtering”

More aggressive email tokenization and parsing from commercial vendor corvigo;
Purdue
is an early evaluator.

Tribal Wisdom: when you discover you’re riding a dead horse