Archive for the ‘Uncategorized’ Category

Hello world!

Yep, this is the first post. Sorta. I’ve installed and configured WordPress here on our family site so I use it instead of using blogger.  I imported all the posts from my blogger.com site, too.  So, this is the first post *here* at the new home.

Can a bash script figure out the full pathname to itself?

Yeah, but it needs help. Here’s a script demonstrating a technique I just developed. #!/bin/bash##————————————————————————–## Written 2008-10-01 by mike@diehn.net.## Demonstrates a technique for acquiring the full pathname of a# script from within the script itself, using only shell# features. I also show how to get just the parent directory# name from that result, again using […]

Killing the meat birds.

We (ok, I) bought chickens this summer. Got four layers and four meat birds. Now, meat birds are an interesting breed. Amazing really. Our were Cornish Rock cross and by the time they were ten weeks old, last Friday, they were seven or eight pounds already. Big as full grown regular chickens, but clearly still […]

Menu-drive changes to PAM with authconfig.

Authconfig may not be in all distributions. I found it today in RedHat Enterprise Linux 4.0 Application Server (rhel4as) and it was helpful enough that I want to share it here. I know a bit about how PAM based authentication works but when I looked at /etc/pam.d I found it’s way different in RHEL 4 […]

Infiniband Ping Pong.

Intuitive to some, not to others. If you want to ping across an Infiniband network, like we use ping to test other networks, you could use ibping. Pick a system to be the destination of the ping and then go find out it’s Port GUID and start a ibping server on it: Set one system […]

Spock?

If you haven’t see Spock.com yet, go have a look. Pretty interesting.

Debian Etch: BADSIG A70DAF536070D3A1

Got this the other day when I tried to update the package lists on one of our Debian Etch servers: mdiehn@imlcvs:~$ sudo aptitude updateGet:1 http://security.debian.org etch/updates Release.gpg [189B] …W: GPG error: http://security.debian.org etch/updates Release: The followingsignatures were invalid: BADSIG A70DAF536070D3A1 Debian Archive AutomaticSigning Key (4.0/etch) <ftpmaster@debian.org>W: Couldn’t stat source package list http://security.debian.orgetch/updates/main Packages(/var/lib/apt/lists/security.debian.org_dists_etch_updates_main_binary-i386_Packages)- stat (2 […]

Pressure makes me do dumb things.

Yesterday was a big day here at the Lab. We had high muckity mucks from around the country in to preview a new application and collaborate with the designers. I’ve only been here since last June and hadn’t been through the… uhmmm – the furor of getting ready for one of these meetings. People get […]

Good-bye Windows XP

I installed Ubuntu Feisty Fawn (version 7.04, an alpha release) on my ThinkPad T43 last week. I have a model 2668-97U and it’s had Windows XP on it every since I bought it January of 2006 – I thought it was pretty nice with Windows…. I really like Ubuntu. Everything, and I mean everything worked […]

Mail, mail, mail

The Barca mail client has been good to me. In fact, it’s the only mail client I’ve ever paid for myself. But, I’ve been using it for about two years now and I’m getting a little tired of it. There are a few bugs that have worn on me and it’s slowed down quite a […]