This setup lets a user choose between using a secure encrypted system or the default unencrypted system. To switch from insecure to secure the user has to merely mount the encrypted SD drive. No need to login as a different user. We take advantage of Firefox, Thunderbird, Pidgins ability to point to different profiles. As such setting up the secure profiles is the only complicated step but the trade off is that one can use secure or insecure programs quickly. This is most useful for users that want to be able to take their encrypted data (mail, profiles, work etc) between multiple PC's or someone that wants the option to have their encrypted data in their pocket when the laptop is left at home.
This setup is based on a EEEPC 701 4G Surf, German edition. We use the default Xandros setup but with the following additions:
I use the Yakuake console as my main interface. So, leaving the default graphical interface in Easy Mode or switching to advanced was not important. I chose to leave it in Easy Mode just to retain greater compatibility with the default setup.
most steps are run from the command console. hence:
NOTE: if for some reason you ran the language change step before this one the dist-upgrade will fail when trying to install “voice-command-de”. To get past this uninstall voice-command: sudo apt-get remove voice-command
Both the SD bus and the CPU are bottlenecks for this setup. In following with instructions from Overclocking the Front Side Bus (FSB) to 100 MHz with a Linux kernel module:
The modules should load now on restart. For troubles, refer to Overclocking the Front Side Bus (FSB) to 100 MHz with a Linux kernel module
to use and overclock:
IMPORTANT: rc.shutdown: truecrypt -d (unmount) and unmount the SD when using. Or see Proper unmount of external drives for scripts and details, or the section on system script setup in this page.
Install a Newer Version of Pidgin details both how to compile or install from repository. Compile is more future proof, but rep is more time proof. Consult the doc if you want to compile. here is how to add and use the repository:
Check version: dpkg -l pidgin
from http://ftp.linux.hr/asuseee/xandros/binary/: rar, ntfs 3g, nmap add debian sources: sudo vi /etc/apt/sources.list add: deb http://ftp.us.debian.org/debian/ stable main contrib non-free good for wireshark, wine
Truecrypt, FSB overclock
Running a script at startup edit /usr/bin/startsimple.sh add lines just before: ”/opt/xandros/bin/AsusLauncher &”
make encrypted drive on SD mkdir inside user home dir for encrypted mount make a script on the encrypted drive which sets up the following aliases: EXT=$HOME/enc alias enc_firefox3=“firefox3 -no-remote -profile $EXT/” alias enc_pidgin=“pidgin -m -c $EXT/” alias enc_thundrbrd=“export GNUPGHOME=$EXT/.gnupg/ && thunderbird -profile $EXT/.thu nderbird/?????????.default/”
add script to default users .bashrc: if [ -f /home/user/enc/etc/shortcuts ]; then