Tech Tips for BHSEC Students » Uncategorized

Gimp Tutorials Assimilated by One of My Students

pkolbe — Mon, 11 May 2009 14:59:35 +0000

http://howto.nicubunu.ro/ -Where to find how to make your own Pac-Man character

http://www.bestgimptutorials.com/browse_gimp_tutorials

http://www.gimp.org/tutorials/

http://graphicssoft.about.com/od/gimptutorials/GIMP_Tutorials_Learning_The_GIMP.htm

source

Lock down the Wallpaper on XP

pkolbe — Thu, 12 Feb 2009 15:05:34 +0000

http://www.winxptutor.com/tweaklogon.htm

Mac Isight cam abuse

pkolbe — Wed, 17 Dec 2008 23:43:33 +0000

Students are driving me crazy making videos of themselves with our new macs. I’ve been on the lookout for an easy wasy to disable/enable the camera and cense@techslaves.org over at techslaves has provided it. It’s also a neat example of applescript if you’re interested in learning it:

iSight Disabler Version 3, Leopard Support

Btw, I suggest saving the script on the desktop of a user who has administrator privileges so you can easily enable/disable the camera whenever you want.

Cloning multiple computers with open source software

pkolbe — Mon, 03 Nov 2008 23:44:47 +0000

I’m using the clonezilla server that comes bundled with the drbl-live cd. This is good for cloning (in mass) windows XP and or Linux machines. (Prolly win2k, and some bsd’s too, but I don’t know about vista.) For my purposes I’ve put an image I created with a clonezilla live cd on a usb drive. I connect the usb drive (which happens to be formated with ntfs) to a laptop which I booted with the drbl-live cd. I go to the command line and call:

$ sudo fdisk -l

That will tell you what hard drives/partitions are available so you can mount them. This is *not* the easy way to do this; I’m just doing it b/c I enjoy the practice. For me, that command revealed:

/dev/sdb1 is the device name I need to mount the usb drive.

I then called:

$sudo mount -t ntfs-3g -o rw,uid=1000,umask=0222 /dev/sdb1 /home/partimag

The command that the drbl-live cd ran was:

$ /opt/drbl/sbin/drbl-ocs -b -g auto -x hn1 PC -y0 poweroff –time-to-wait 300 -l en_US startdisk multicast_restore folderNameOfClonezillaImageInTheDirectory-home-partimag hda

Edubuntu, LTSP for Ubuntu

pkolbe — Fri, 31 Oct 2008 22:56:32 +0000

I work for the New York City Department of Education and run an Edubuntu server. I’m currently using a Dell Poweredge server with a P4 2.8ghz cpu and 3gb of ram. Half of my trafic comes through gigabit switches. The clients are HP D530’s with 3ghz P4’s and 512mb Ram. They’re *much* more powerful than necessary, but they were donated and they’re very small.

The NYCDOE provides a few network challenges.

1) TCP/IP traffic requires a proxy setting. Resolving this is easiest achieved by calling:

$ export http_proxy=http://filtr.nycboe.org:8002

unrelated:

A really good ltsp link: ltsp.org

Windows & Mac Mozilla Firefox Scripts Part 2

pkolbe — Tue, 05 Aug 2008 04:18:38 +0000

You’ll need to copy those user.js files into a place where firefox will look for default settings when it sets up a new user. In Windows we copy this file into C:\Program Files\Mozilla Firefox\defaults\profile\
These settings will not affect any pre-existing firefox profiles (users who have logged in and used firefox will not have their pre-existing settings altered).
submitted by Peter

Windows & Mac Mozilla Firefox Scripts

pkolbe — Tue, 12 Feb 2008 17:40:30 +0000

The user.js preference files for Firefox for Windows and Mac are not the same, one being that the Mac script is quite different from the Windows script.

Windows Firefox script:
user_pref("security.warn_entering_secure", false); user_pref("security.warn_leaving_secure", false); user_pref("security.warn_submit_insecure", false); user_pref("security.warn_viewing_mixed", false); user_pref("network.proxy.autoconfig_url", "http://proxy.nycboe.org//proxy.pac"); user_pref("network.proxy.type", 2);

Mac Firefox script (Mac Firefox doesn’t have a user.js file, so you have to create one):
user_pref("security.warn_entering_secure", false); user_pref("security.warn_leaving_secure", false); user_pref("security.warn_submit_insecure", false); user_pref("security.warn_viewing_mixed", false); user_pref("network.proxy.autoconfig_url", "http://proxy.nycboe.org/proxy.pac"); user_pref("network.proxy.type", 2);

Posted by Sammy
edited by peter

Helping faculty login

pkolbe — Wed, 17 Oct 2007 20:17:30 +0000

A graphical reminder to help faculty remember how to login after we change the username to login as ourselves. Part of the problem is they don’t remember their username, which is their first initial and whole last name. This little graphic I made to print up and tape to the front of their computers esp when I work on their machines when they’re not there.

Hello world!

pkolbe — Thu, 17 May 2007 11:16:12 +0000

Welcome to Edublogs.org. This is your first post. Edit or delete it, then start blogging!