Offline Email Archiving

If you keep old emails, and some of that information is sensitive, you should archive them offline on a computer that doesn't get connected to the network all the time. While this isn't failsafe, it does prevent intruders from accessing sensitive data on backups. (Need to explore backup security issues.)

Stop Recording Bash History

Here's a script based on the information at

It erases your history, and then tries to alter /etc/profile to stop recording history for everyone. Run it as a user and as root for the full effect.

Generally Accepted Accounting Practices (GAAP)

I keep hearing that term, "generally accepted accounting practices". It turns out there's a standards body that defines what these practices are! FASAB's GAAP standards.

The End of Passwords

So I read that they used a rainbow table of 8-char passwords of all lowercase and numerals. That's a rainbow table with 37^8 or 3.5 trillion entries.

Burned a DVD but it Won't Play in the DVD Player

First, you have to assume that a given disc or file will not play on the target device.

Connecting to Network Printers

Suppose you go onto a foreign network and need to print. There's no network administrator around. How do you install the printer?

That 70s Computer: The People's Computer Company

The first computer book I read was "Teach Yourself Basic" by Bob Albrecht. It wasn't a really good book - at least not for a child - but there it was. Mr.

Facebook isn't worth $51 bn.

There was a period around a year ago when I was on FB a lot. I'm still on it more than most other sites except Google search, but it's utility for me has declined significantly. There's too much ADD on there. I tried to get involved with a 'group' but the groupware features are too weak to support anything (traditional tools like message boards, email lists, chats, are better implemented by the old software that's just "out there" in the internet).

Quick Fix to Deal with URL SQL Injection Hacks

So I'm running some old web software that has possible vulnerabilities. Here's a log line with the hack attempt.

The difference between cheap webcams and expensive webcams.

I got a cheapie from AJ Wright for $12, and it works okay, looks grainy but acceptable. At work we have a Logitech, and I think the model is the "9000". It cost around $70 and has a nicer picture, better auto-exposure, and a sharper lens.

The thing you don't notice right away is the "lag" that the cheaper camera has. There's a noticeable lag between the audio and the video, and this also seems to translate to a lag during videophone. I suspect that there's a little DSP work going on in the images, and the chips in the Logitech are faster.

For business meetings, if you have the chance to upgrade, go for it. The Logitech was rated high, as were the Microsoft LifeCam and whatever Apple sold, all in the same price range. Get one with HD resolution, a glass lens, and if you can tell, a fast DSP.

HA Mail versus Exchange

I'm reading up on Exchange 2010 and it's clustering and failover tech. It seems "wrong" to me.

Email Archiving Solutions

I'm looking at some email archiving systems.

Mass Convert IP Addresses to Domain Names with a Filter

A PHP script to convert many IP addresses to domain names.
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