monline

At www.debian-administration.org you can find a short how-to on making an USB drive boot a Debian/Ubuntu distro (installer or Live CD) using an official ISO image.
The summary of their instructions is ...

"This article discusses the essential network ports, protocols and services that are used by Microsoft client and server operating systems, server-based programs and their subcomponents in the Microsoft Windows server system."

A very nice collection of all the Windows network services and their protocol+port usages.

You'll find tons of hits if you search for the solution to setting/changing the default (server-level) timezone in Debian. However there's not much said about how to query the current default timezone selection. There're at least two ways to do this ...

There's already a good answer to the question at stackoverflow. They suggested to use the top command, then change the sorting field to "swap" by hitting O and p. Unfortunately (afaik) there's no way to do this in batch mode (using the -b switch) and save the top swap using prorcesses in a file. There's another method: use the ps command.

If you've a running VM (Windows XP in my example) and you want to attach an ISO image as the virtual CD/DVD drive to this VM, VirtualBox brings up the Virtual Media Manager. However if you've an ISO image in the "CD/DVD Images" list that you've deleted previously, then VirtualBox hangs. Not just the Virtual Media Manager, but the respective VM too. Apparently it tries to access the missing ISO image file in an infinite loop. So take care not to delete any ISO images "manually" (in Finder) that are already added to the Virtual Media Manager "CD/DVD Images" list. Remove the image first from VirtualBox and only after that from your disk (Virtual Media Manager does not cause any problem with missing ISOs if it's not invoked from a VM's "Devices / CD/DVD Devices / More CD/DVD Images" menu).

It happens occasionally that after a crash (Firefox/Thunderbird or the PC itself) starting up Firefox (or Thunderbird) you experience weird behaviour. Eg. it tells you that the app is already running or it starts, but bookmarks are not available, etc. Cleaning your profile can be easily done manually by removing a couple of files in your Firefox/TB profile, but average users are not familiar with contents of these profile folders. To help them I've written a small app (shell script using Zenity to provide a GUI) that you can put in your Gnome/KDE/etc. menu so all your users can easily access it. Of course, you're free to customize the script anyway you like (eg. take out a few questions to make it even more automatic). I've tested the script in Ubuntu 9.10 (Firefox 3.5.9 and Thunderbird 2.0.0.24).

This is a fix for the whitespace issue with the original Generate Checksums action.

Using the attached Nautilus action, you can easily add a custom action in the context menu of Nautilus and calculate the MD5, SHA1 or CRC32 (as defined by POSIX.2 -aka. IEEE Std. 1003.2- standard) checksum of the selected files and/or for all files in the selected directories recursively. It works with filenames containing whitespace and supports selection of multiple items. By default the results are displayed in a 1000x600 window, but you can easily change that. The action requires zenity to display a dialog box for checksum method selection and display the results.

"Nautilus-actions is an extensions for nautilus which allow to add arbitrary program to launch through the nautilus popup menu of selected files. Each time you right-click on one or several selected files in nautilus, nautilus-actions will look at its configured actions to see if a program has been setup for this selection. If it is the case, it will add an item in the menu that allow you to execute the program on the selected files."