Wednesday, August 31 2005
Wednesday, August 24 2005
I all ways wanted to go crypto for my data storage but until now I never owned
any big storage device. Now I have an external 250 gig USB disk which I want
The thing with crypted disk all ways comes down to where can I read the disk?
Only on my computer, only with one specific OS, etc. For me it's basically
Linux and from time to time Windows. The two solutions I found where
BestCrypt which is commercial (at least for Windows) and
dm_crypt/FreeOTFE which is free and has much more features.
I ended up using dm_crypt/FreeOTFE.
dm_crypt is the Linux part of the crypto solution and is
in part of Linux Kernel since 2.6.4. With cryptsetup its super simple
to setup. You can setup a partition or a file based crypto device. The
device then can be formated with whatever filesystem you want. Of course you
need one which is readable by Windows (e.g. vfat/fat32).
FreeOTFE is the Windows counterpart of dm_crypt and can mount
whatever you created with dm_crypt. I guess multi-disk volumes don't work but I haven't tryed it. When mounting a filesystem use mount Linux... otherwise it doesn't work :)
For the external USB disk I have two partitions, one small partition which is
not encrypted - this holds the Windows drivers (FreeOTFE), the second
partition is the crypto filesystem. With this you can also take your disk
to a friend without downloading drivers and stuff from the net. All in all a
I just read heise for breakfast and saw that Google Talk
is just Jabber. This is so great! Finally Jabber is used by a big player and
should therefore get more widespread soon. It's really time to get rid of stuff like ICQ,MSN,YAHOO chat and move
to a open protocol. Nothing is more painful then having something like 5 IM accounts so you can talk to everybody.
Anyway I just setup my Google Talk aka. GMail account in GAIM. Google actually has some documentation on their site
on how to use other clients then their own client to use their service *WOHU* The only bad thing now is that Google
Talk doesn't accept server-to-server connections right now, this prevents someone with a jabber.org account to talk
to someone with a gmail account. When the remove this feature Google Talk will really help Jabber.
Tuesday, August 23 2005
yesterday my ThinkPad silently rebooted as I unplugged my (external) USB disk, when it came backup USB was gone!
The OS (Linux/Windows) still sees the USB host controller but non of the many devices I attached get recognized
(dmesg shows nothing). Also some of the devices get power from the bus and others don't (I guess some of them
only turn on the lights if the are ready). The internal Bluetooth is also gone (it's USB too) - so I
guess the complete bus is gone or actually I think only a fuse got shot.
Anyway I spoke to the IBM support today and they told me it will be fixed within 7 days (wow!). To the question if
this is a common problem I got told that it happens from time to time. WTF? USB is hotplug - it should be able
to handle stuff like this.
Let's see how fast I get back my beloved black beauty :-]
Monday, August 22 2005
so I just uploaded my BlueZ package for the PMA400.
The package just contains the BlueZ libs and utils that work with the 2.4 kernel running on the PMA.
Now I need to port some useful applications to the PMA :)
Tuesday, August 16 2005
I just can't get it to work in an acceptable way. The only mode that seems to
work somehow is setting STV as the primary display - this leaves your
LCD blank. Anything else doesn't work - you just see some flicker on the TV.
I just want to run the LCD with 1600x1200 and use the TV-out in 1024x768 or
800x600 - this can't be too hard to do?! Stuff like this really makes me
angry - but since nobody gets it to work I'm almost sure it's not *PEBCAK*.
*argl* 4 hours!
Friday, August 12 2005
since I am updating all the services on our server to handle IPv6 I also wanted to see how much IPv6 is used.
Therefore I installed a new DNS stats tool called tinystats, which is a simple but nice tool for
tinydns stats. Unfortunately it doesn't support IPv6 (the log format generated by tinydns with Fefe's IPv6 patch). Fixing it took a few hours (with testing).
The patch is available for download. Also Luca Morettoni (the author of tinystats) will integrate it into tinystats.
Thursday, August 11 2005
Aaron a long time Palm-Coder-Friend of me and very well known person in the mobile gaming scene just started a blog
today aka yesterday. Since he always gets the newest and coolest PDA and phone toys his blog should be quite interesting.
Check it out at: www.mobilewizardry.com/blog
Wednesday, August 10 2005
so today I setup IPv6 for my laptop. I basically use OpenVPN to play IPv6 tunnel broker on my server. The configuration
sucked a little bit because IPv6 tunneling is not supported by OpenVPNs server mode so now I have to run one OpenVPN session for each IPv6 client on
my server. Anyway it works and I'm satisfied. Now I need to check if all my favorite network applications support IPv6.
A good howto on OpenVPN as IPv6 tunnel broker can be found here
and some nice IPv6 tools (webtools) can be found here
By the way the ip route tools set rocks!
Tuesday, August 02 2005
I have played with IPv6 in the past and recently at WhatTheHack! so that I now
have decided to get IPv6 on our server running. 1und1
(where our server is hosted) offers IPv6 tunnels for free, you just need to write them a nice email. Also the responds was very fast
(1 day). So I could setup everything in one day. Since we already have IPv6 in the Kernel I just needed to patch a few applications (ucspi-tcp and tinydns) and add the IPv6 addresses to our nameservers. I did a few quick tests using ping6 and dig aaaa
and everything seems to work fine. The only thing we need to do is patch Apache or upgrade to Apache 2 to serve our web pages to all the IPv6 users.
Now I need to find a decent IPv6 tunnel provider with support for dynamic IPs so I can have IPv6 on my laptop.
Monday, August 01 2005
is a new book by Simson Garfinkel and Beth Rosenberg. Like you can guess from
the name if covers RFID technology but it also covers some of the security and privacy problems of Bluetooth. The Bluetooth chapter mentions some of my tools and things I did with Bluetooth and the stuff done
by the rest (sorry guys!) of the trifinite group.
Checkout the book at Amazon.
actually I wanted to put some of my own pictures online but since there is such a huge amount of pictures already online I don't
see the need for posting any more. Also most of my pictures show either Frank, Simon, Sebastian or myself and therefore I will just
give you one link to a best of site made by someone else.