Posts from 2010-07

CalDAV Server

Apple Calendar Server


The project homepage
DAViCal on Ubuntu Users (German)

I got DAViCal to work with Ubuntu but its not the most stable piece of software that I have seen yet.

sudo aptitude install davical davical-doc

Allow network connections on port 11371:

sudo ufw allow...

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Install EtherPad server

To install EtherPad you first have to edit the package repositories:

sudo gedit /etc/apt/sources.list

and add the following two lines (of which you might already have the first activated and where lucid could also be maverick or natty depending on your Ubuntu version):

deb lucid...

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Creation of ISO images, Burning of ISO images – Both on the Terminal using Mac OS X

Burning an ISO Image from Terminal

hdiutil burn image.iso

Creating an ISO Image from a Folder

hdiutil makehybrid -o ~/Desktop/[outfile] ~/Desktop/[source]

[source] can be a folder or a disk image.

Creating an ISO Image from a CD

Determine the device that is you CD/DVD drive:

drutil status

Umount the disk:


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Spotlight Search and Indexing

Terminal helpers (command line tools):

  • mdfind : Search Spotlight metadata indices.
  • mdimport : Force Spotlight to import metadata for a specific directory.
  • mdls : List the metadata attributes of a specific file.
  • mdutil : A utility for managing Spotlight indices.

To erase and rebuild the index on the root partition / do:


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Mount HFS+ Volume with Write Access / Disable HFS+ Journal

If you want to mount an HFS+ volume on an Ubuntu computer, all you have to do is to disable the Journaling for the partition. Connect the HDD to a Mac (Firewire didn't work!), boot into Mac OS X and execute the following command on the terminal:

sudo diskutil...

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Temporarily Disable Spotlight Indexing

Temporarily disable Spotlight indexing is especially useful when connecting a large external HDD for the first time to copy/move/access some files as the Sportlight scanning slows down the drive access a lot.

sudo mdutil -a -i off

to turn it back on:

sudo mdutil -a -i on



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monit - A Tool To Monitor Processes Running on your Linux Machine

Setting it up (German)

sudo aptitude install monit

Enable it by setting startup=1 in the config file /etc/default/monit.


You have to edit the file /etc/monit/monitrc.

Here's a small example:

## Monit settings
set daemon 120
set logfile syslog facility log_daemon            ...

Read on - Use the Internal Accelerometer to Operate iTunes on MacBook

If you want to control iTunes by bumping on your MacBook then follow this advice:

Get amstracker and and unpack them somewhere. Open a Terminal in that directory and run:

./amstracker -u 0.1 -s | python



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Change the Login Screen Wallpaper Image on Mac OS X

To change the login screen wallpaper on Mac OS X you can use the some commands on the terminal. They work on Leopard 10.5 and Snow Leopard 10.6:

cd /System/Library/CoreServices
sudo mv DefaultDesktop.jpg DefaultDesktop_org.jpg
sudo cp /path/of/image.jpg DefaultDesktop.jpg

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Watch the network for an IP conflict - ipwatchd

Installation on Ubuntu:

sudo aptitude install ipwatchd-gnotify

if configured correctly (true by default) it will show you graphical warnings for IP conflicts as well as create log entries in /var/log/syslog (check for log messages containing ipwatchd).

Advanced configuration options are described and have to be set in the file/etc/ipwatchd.conf. This could...

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