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Category Archives: Commentary

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Ubuntu 8.04 SSH login slow

SSH Login to my Ubuntu 8.04 machine was slow. (It would delay about 5 seconds after I issued the ssh command for the remote machine to request a password.) I believe this is because the remote machine is on my home network, and I have set up it’s hostname using host entries instead of [...]

Compiz keybindings in Ubuntu 9.04

Ubuntu 9.04 comes with some visual effects from Compiz turned on by default. This post contains a list of the key combo’s used to active some of them. Compiz also offers many other “cool” effects. If you install the compizconfig settings manager you can enable/disable all of the neat effects (most of which are [...]

Encrypted home partition for Ubuntu 9.04

Following the directions on Lars’ blog, I set up an encrypted home directory on Ubuntu 9.04 using LUKS.
The following commands were all executed with root permissions. Add “sudo” to the front of the commands if you are not running with root permissions.

Setting Netflix / Silverlight bandwidth usage

The netflix watch on demand video player uses Microsoft Silverlight. Silverlight has an “adaptive playback” mode which attempts to choose one of multiple bandwidths for your video (and switch on the fly if your internet connection has more ore less bandwidth over time).
To see what it is currently using, press the Control, Alt, Shift and [...]

Ubuntu 9.04 (Jaunty Jackalope) Annoyances

I upgraded to Ubuntu 9.04 from 8.10 over the weekend.
The good:
Faster boot up. (worth the upgrade all by itself)
New notification “bubbles” that appear and then disappear again without any fuss.
OpenOffice 3.0 and other software upgrades.
The Bad:
Required tweaks to my pam_mount.conf.xml file to get my encrypted home directory to work. (Not an issue [...]

Ubuntu 8.10 bootup time compared with 9.04 and Windows Vista

One of the claimed features that made me upgrade to Ubuntu 9.04 was the boot-up speed increases. Before the upgrade using Ubuntu 8.10 it took my computer 55 seconds to boot up to the login screen. Including a very fast (2 second) login, it took 1:25 until the desktop was “usable”. Starting Thunderbird and [...]

DM-Crypt encrypted volume upgrade problems to Ubuntu 9.04

I just used the distribution upgrade option to move from Ubuntu 8.10 to 9.04. My dm-crypt encrypted home directory initially refused to load, and I had to change my volume entry in the /etc/security/pam_mount.conf.xml to make it work again.
Specifically, a few of the defaults had changed, so now I had to specify the old (8.04) [...]

Printer Ink, $9507 a gallon

Just replaced an HP 74 black ink cartridge and purchased another backup cartridge for $13.11 (well below the standard price). Difference in weight between the full (28g) and empty cartridge (23g) is 5 grams. Assuming ink has the same density as water, that is $9507 a gallon. Assuming the 200 page per cartridge yield from [...]

Getting 20,000 skymiles

The Delta Airlines Skymiles American Express card will offer 20 to 25 thousand bonus Skymiles (Frequent Flier Points) when you first sign up. However, once you have signed up for a card, collected the miles, and then canceled the card, they no longer give you bonus miles for signing up again.
However, Northwest (NWA) and Delta [...]

Atlanta / Decatur Over the Air digital channels

2_1 – ABC
2_1 – RetroTV
5_1 – Fox
8_2 – GPB Kids
8_3 – GPB Know
11_1 – NBC
11_2 – NBC Plus (weather)
12_1 – GPB
17_1 – Peachtree TV
30_1 – PBS
34_2 – TeleFutura (Spanish)
36_1 – MyATL
43_1 – The CW
46_1 – CBS
48_0 – Univision (Spanish)
63_1 – TBN
63_2 – Church Channel
63_3 – JCTV
63_4 – Enalce
63_5 – Smile