Archive for the 'Tech' Category

Windows Command Line Reference

Monday, November 27th, 2006 | 17:00

To use with the Windows telnet server, when something locks up the screen, etc.
Microsoft’s reference
Also, SANS has a write-up of various wmic commands, in particular “wmic process list brief” for the “ps” equivalent, and “wmic process
delete” for the “kill -9″ equivalent.

WEP Cracking using Auditor’s Security Collection 2006-06

Thursday, October 12th, 2006 | 08:37

An associate of mine was challenged to crack WEP by one of his collegues recently. Somehow, this collegue was unaware that WEP is flawed and subject to very fast cryptanalysis, and believed that 128-bit WEP keys were unbreakable.
We picked up two Netgear WG511T PCMCIA cards, got the Auditor’s Security Collection as of around June [...]

Cyrus IMAP log and cache settings

Tuesday, August 22nd, 2006 | 04:36

This is to address the case where Cyrus IMAP runs out of log memory. Documentation on how to do deal with this is scattered around on a number of web pages, so I thought I’d consolidate things in one place.
/var/log/maillog shows the following messages:

DBERROR db4: Logging region out of memory; you may need to [...]

CUPS printing for a Samba-connected HP LJ 1100

Sunday, August 20th, 2006 | 05:39

On Fedora Core 5, I did a relatively minimal installation (By the way, whoever set up the ISO images for the most minimal installation options I could find (and still have a system I could quickly get to work with) managed to go just over one CD by a package or two. This would [...]

Hosting Services, sshfs and cryptsetup

Monday, July 24th, 2006 | 07:30

I’m moving hosting to a provider I have less control over. I don’t believe admins there will peak at my files, but the general rule of thumb is to not allow anything that is not permitted, and, since I’m using that box as a off-site backup of my local files, I want all my [...]

Malware and Safe Computing

Thursday, February 16th, 2006 | 10:25

I’ve been doing freelance computer consulting for the past few months (not money to eat, but money to eat out), and that’s taken a fair bit of time. Here’s something I sent to one of these clients discussing viruses and other malware, and what we do about them:
How do most bugs get into the [...]

Amazon Mechanical Turk

Saturday, November 12th, 2005 | 06:58

Amazon has taken the brilliantly evil “using porn to defeat captcha” idea and put it to good use in their experimental Amazon Mechanical Turk. (The name comes from 18th Century chess automaton hoax, where the chess-playing “robot” actually consisted of a chess master dwarf moving the levers, as this page explains).
The Amazon system [...]

Offline NT Password Recovery

Wednesday, September 7th, 2005 | 08:31

Midway upon the journey of life,
I find myself in the dark woods of Windows administration
for the Admin password had been lost.
But this Offline NT Password & Registry Editor helped me blank out the password and unlock the account. I suppose I should download the CD image and start making a small kit of boot/recovery [...]

Google Maps Pedometer

Wednesday, August 3rd, 2005 | 11:33

Here’s a neat Google Maps hack that lets you figure out the length of route, given a set of waypoints.
Finally, I know (about a year after when it may have mattered) that the route we always took walking back from Fairway along Broadway to turn at W. 77th Street is the optimal route, beating the [...]

SpinRite

Monday, May 2nd, 2005 | 17:35

One of those things to tuck away for future reference, in case it’s ever needed.
A question was posted on the company’s technical discussion mailing list, asking what the best way would be to recover data from a failing USB external drive, without resorting to professional data recovery services.
It turned out that chkdsk /f was sufficient, [...]