ubuntu

Foto batch resize and rename

rac — Fri, 30 Dec 2011 01:32:43 +0100

Resize

Install the Nautilus extension

 sudo aptitude install nautilus-image-converter

Rename based on EXIF data

 exiv2 -r'%Y%m%d-%H%M_:basename:' rename $(ls)

Generate strong passwords

rac — Fri, 09 Dec 2011 22:02:39 +0100

Installing the tool

 $ sudo aptitude install apg

Using it - the simplest way

 $ apg

Entering some random data

 Please enter some random data (only first 16 are significant)
 (eg. your old password):>

Output

6 random passwords like this:

 Kaswaym3 (Ka-swaym-THREE)
 Nugbubrish9 (Nug-bubr-ish-NINE)
 Bydfust0 (Byd-fust-ZERO)
 DigCavpifob7 (Dig-Cav-pif-ob-SEVEN)
 OlbOrdUv4 (Olb-Ord-Uv-FOUR)
 CemKirEj4 (Cem-Kir-Ej-FOUR)

Create sftp only accounts on ubuntu server

rac — Fri, 25 Nov 2011 23:52:59 +0100

Configuring OpenSSH

Edit the file /etc/ssh/sshd_config and change the line that starts with

 Subsystem sftp /.....

 Subsystem sftp sftp-internal /.....

and add following block at the end of this file:

 Match group filetransfer
   ChrootDirectory %h
   X11Forwarding no
   AllowTcpForwarding no
   ForceCommand internal-sftp

Finally restart OpenSSH

 /etc/init.d/ssh restart

Create the sftp only group

 addgroup filetransfer

Create a user and jail it into that group (no SSH login allowed for them)

 adduser username
 usermod -G filetransfer username

AXbo Schlafphasenwecker und Linux

rac — Sun, 28 Dec 2008 18:33:46 +0100

!!! UPDATE !!!
Laut einem Kommentar von Jens Ougaard (aXbo Support?) auf dem Blog von crox kann man nun unter http://www.axbo.com/webstart/aXbo_unix_2_0_14.sh eine Unix taugliche Version bekommen.

HP LaserJet P1006 and Ubuntu

rac — Fri, 17 Oct 2008 23:05:30 +0200

!!! Note: At the moment my printer just prints the first page and then displays an printer error !!!

If you power on the Printer, it will automatically install it and you get a popup thats asking if you want to configure the HP LaserJet P1006.
This way it won't work, don't know why but will try to find out.

Install Ubuntu 8.04 on Lenovo 3000 N200 with encrypted LVM

rac — Tue, 19 Aug 2008 21:08:44 +0200

Pre install

Download and Burn Ubuntu 8.04 (I used 8.04.01) Alternate ISO

Base Installation

I just followed this blog post ;-)

Post install

Power Savings

Enable Laptop mode

You can see if laptop mode is active with this command:

 # cat /proc/sys/vm/laptop_mode
 5

If the content of that file is 0, laptop mode is disabled. In the example here, laptop mode is enabled.

To enable laptop mode, you can use this command:

 echo 5 > /proc/sys/vm/laptop_mode

Putting /etc into Version Controll

Backup Installed Software List on Ubuntu

rac — Fri, 06 Jun 2008 20:06:17 +0200

Preparation

For debian-based system: Install “debfoster” and run it. After answering a lot of questions about your packages you will have a system without unnecessary packages and a short list of only the packages that you have actively chosen to install. (Tip by Motin)

Another way to clean the system is:

 $ apt-get autoremove

To Backup

 $ dpkg --get-selections

To Restore

Importing the List:

 $ dpkg --set-selections < /backup/installed-software.log

Install the imported list:

 $ dselect

Howto install Skype on 64-Bit Ubuntu

rac — Sun, 04 May 2008 14:47:39 +0200

Install on Gutsy
sudo apt-get install ia32-libs lib32asound2
wget -N boundlesssupremacy.com/Cappy/getlibs/getlibs-all.deb
wget -O skype-install.deb http://www.skype.com/go/getskype-linux-ubuntu
sudo dpkg -i getlibs-all.deb
sudo dpkg -i --force-all skype-install.deb
sudo getlibs /usr/bin/skype

Digitales Fotolabor mit Linux

rac — Tue, 22 Apr 2008 12:43:13 +0200

Hier folgt eine Zusammenstellung von Infos und Links zum Thema Fotografie unter Linux...

 !!! Work in progress !!!
 Zusätzliche Infos könnt ihr gerne in den Kommentaren abgeben

Tutorials

HDR mit Photomatix (video tutorial 100MB)

Software

Bild manipulation

Epson Perfection 3590 Photo Scanner auf Ubuntu 7.10

rac — Sun, 06 Apr 2008 00:40:30 +0200

Zuerst mal die Sowtware für iscan runterladen von http://www.avasys.jp/lx-bin2/linux_e/scan/DL1.do, dort einfach Debian als Distribution und others als Version wählen.

Da ich es auf einem 64-Buit System mache, müssen noch ein paar packete installiert werden:

 sudo apt-get install ia32-libs fakeroot alien

Nun das packet in ein tar umwandeln und danach in ein deb packet

 fakeroot alien -t --scripts iscan-2.10.0-1.c2.i386.rpm
 fakeroot alien iscan-2.10.0.tgz
 fakeroot alien -t --scripts iscan-plugin-gt-f520-1.0.0-1.c2.i386.rpm
 fakeroot alien iscan-plugin-gt-f520-1.0.0.tgz

Encrypt an partition with cryptsetup

rac — Wed, 26 Mar 2008 21:18:49 +0100

This howto log is done on Ubuntu 7.10 64-bit version but should be fine with most debian based distros

Go to the related link at the end of this article if you want to know what the commands exactly do or if you dont have the same system as I have

Create a partition GParted (aptitude install gparted), Select Filesystem as "not formatted" and note down the device name (e.g. /dev/sdb1)

Install needed tools

 aptitude install cryptsetup

Load needed modules

If you have a 32-bit Pentium, you need to load aes-i586 or simply aes (not optimized) instead of aes-x86_64

Lightscribe with Ubuntu 7.10

rac — Sun, 16 Mar 2008 01:22:53 +0100

Da ich das ganze auf einem 64-Bit System mache, muss zuerst die 32-bit compatibility library, fakeroot und alien installiert werden

 sudo apt-get install ia32-libs fakeroot alien

Nun muss das Lightscribe System Software als 32-bit .deb package und das Lacie 4L package als x586 RPM heruntergeladen werden.

Nun können beide packete in ein tar file umgewandelt

 fakeroot alien -t lightscribe-X.X.X.X-linux-2.6-intel.deb
 fakeroot alien -t 4L-X.X-rX.i586.rpm

Dual monitor on Ubuntu 7.10

rac — Sat, 01 Mar 2008 13:17:52 +0100

If you see the desktop in mirror mode on both monitors after you connected the second one, then you just have to do some few steps to get it in extended mode.

 Don't touch the GUI Setting tool (displayconfig-gtk) for monitors, it won't work correctly and may
 destroy your xorg.conf

To see the identifier for your monitors you can use "xrandr -q", see sample output below:

 ~$  xrandr -q
 Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 3200 x 1200
 VGA connected 1280x1024+0+0 (normal left inverted right) 376mm x 301mm
    1280x1024      60.0*+   84.8     75.0     59.9

Install Xubuntu 7.04 on IBM X41 Tablet

rac — Fri, 11 Jan 2008 17:37:30 +0100

Dieses HOWTO Arbeitet mit der Version 7.04 von Xubuntu

Table of Contents [hide]

Getting the Image
post Install stuff
1. Distro auf den auktuellsten Stand bringen
2. Service Partition nicht automatisch mounten

Getting the Image

Hier kann man das image runterladen

post Install stuff

Distro auf den auktuellsten Stand bringen

sudo aptitude update
sudo aptitude upgrade
sudo aptitude install linux-headers-generic

Service Partition nicht automatisch mounten

sudo pico /etc/fstab

Transparent Terminal on Background

rac — Fri, 04 Jan 2008 14:26:51 +0100

http://tombuntu.com/index.php/2007/08/27/transparent-terminal-on-your-desktop/

Install Ubuntu 7.10 on Lenovo 3000 N200

rac — Fri, 04 Jan 2008 14:25:03 +0100

Its almost running out of the box.

Desktop Stuff

Compiz Einstellungen

Install Advanced Desktop Effect Settings

 sudo aptitude install compizconfig-settings-manager

Screenlets

Take a look at http://tombuntu.com/index.php/2007/08/24/osx-like-widgets-with-ubuntu-screenlets-and-compiz-fusion/ or http://compiz.org/Desktop_Screenlets

Avant Window Navigator

http://blog.t-error.ch/article/528/avant_window_navigator/

Desktop Background Shell

see Transparent Terminal on Background

Screen flickering

Bluethooth mouse Razer and Ubuntu 7.10

rac — Wed, 02 Jan 2008 13:01:11 +0100

To get the mouse working, first you ned the MAC adress of your mouse...
You get it with following command in a shel (assumes, you have bluez-util installed)

hcitool scan

To pair your mouse, you can execute the following command in a shell

sudo hidd --connect XX:XX:XX:XX:XX:XX

To have it always automatically paired, you can set the two variables like the following sample in the file /etc/default/bluethooth

HIDD_ENABLED=1
HIDD_OPTIONS="-i XX:XX:XX:XX:XX:XX --server"

Enable AuthenTec Fingerprint Reader as PAM modul

rac — Tue, 01 Jan 2008 14:05:46 +0100

Using fprint library

It seems that the fprint packages are now in ubuntu universe repository for interpid and for hardy-backports... http://packages.ubuntu.com/search?lang=de&searchon=names&keywords=fprint

Using Debian packages from Madman2k

(Text copy)

In order to enable fprint authentication on Ubuntu install the libfprint and libpam packages (see attached tar or download from madmans site) and then edit your /etc/pam.d/common-auth so it contains

 auth    sufficient      pam_fprint.so
 auth    required        pam_unix.so nullok_secure