Onlangs ‘n gedichtje ontvangen (origineel van Oko Sokolo):
E.Fried
Everyone who’s paying a visit to the Ryanair website and goes to the Destinations map will notice it … you need to install Microsoft Silverlight.
Uhmm … Silverlight only runs on Windows or Mac OS and not on Linux. I’ve not been able to check other parts of their site (registration and so on …) but surely their web development team must have been exposed to lack of oxygen?
Not so long ago a friend told me about some new thing he experienced when he was on holiday in California : Couchsurfing.
The idea is that you host travelers on your couch (or something similar as long as one can sleep on it). In return you get a database of people that are willing to host their couch when you’re visiting their country / city.
Registration is free and easy.
A colleague showed me a new tool that is very useful if you need to connect to a number of machines that have a similar setup (say, a cluster of x-machines).
With clusterssh you can enter commands simultaneously in the different windows.
It’s available for Ubuntu with
De startpagina.
Het is toch even knipperen als er “…de linkse toets” staat. Iemand die met’n geautomatiseerde vertaler heeft zitten spelen?
The DNS cache poisoning attacks (see VU#800113) / vulnerabilities that are going to be disclosed on the next Black Hat are attracting a lot of attention.
People are commenting (here and here) whether or not the cat has been let out of the bag or not. The exploit has been out there all the time … so what’s the (new) fuzz? Deal with it and apply the patches. Because of the nature of the patch (using ‘random’ ports) proper testing is required and certain environments might require a change in their firewall policy.
The people at DNS-OARC have a dns server that you can use to test if your resolver is using random ports.
$ dig +short porttest.dns-oarc.net TXT
I recently upgraded my laptop to the latest Ubuntu 8. The upgrade process was easy and quick however after the reboot I was unable to access my home-directory. I have a separate partition on which /home is mounted. This partition is encrypted with cryptsetup.
When I start the cryptdisk daemon it returns an error:
/etc/init.d/cryptdisks start
* Starting remaining cryptodisks...
mount: special device /dev/mapper/cryptohome does not exist
Enter passphrase:
Checking the status with cryptdisk doesn’t show any errors:
/dev/mapper/cryptohome is active:
cipher: aes-cbc-plain
keysize: 256 bits
device: /dev/sda3
offset: 0 sectors
size: 40949685 sectors
mode: read/write
And the device is there:
ls -l /dev/mapper/
total 0
crw-rw---- 1 root root 10, 63 2008-07-12 17:20 control
brw-rw---- 1 root disk 254, 0 2008-07-12 17:47 cryptohome
Crypttab is also configured correctly:
#
Mounting the /home partition on /dev/mapper/cryptohome (as root) returns :
mount: wrong fs type, bad option, bad superblock on /dev/mapper/cryptohome,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
with these errors in dmesg
[ 1966.915329] VFS: Can't find ext3 filesystem on dev dm-0
Creating new encrypted partitions (with similar settings) works like a charm. The partition worked perfectly for months before the upgrade and currently I don’t have any clue on how to access my encrypted data. Any help would be highly appreciated.
The problem was not tied to cryptsetup but to something entirely different. My passphrase contains a number of special characters. My keyboard layout was changed to something without the “µ ù ç^” characters. I didn’t notice this during the test because then I was using a rather simple passphrase.
I recently upgraded my laptop to the latest Ubuntu 8. The upgrade process was easy and quick however after the reboot I was unable to access my home-directory. I have a separate partition on which /home is mounted. This partition is encrypted with cryptsetup.
When I start the cryptdisk daemon it returns an error:
/etc/init.d/cryptdisks start
* Starting remaining cryptodisks...
mount: special device /dev/mapper/cryptohome does not exist
Enter passphrase:
Checking the status with cryptdisk doesn’t show any errors:
/dev/mapper/cryptohome is active:
cipher: aes-cbc-plain
keysize: 256 bits
device: /dev/sda3
offset: 0 sectors
size: 40949685 sectors
mode: read/write
And the device is there:
ls -l /dev/mapper/
total 0
crw-rw---- 1 root root 10, 63 2008-07-12 17:20 control
brw-rw---- 1 root disk 254, 0 2008-07-12 17:47 cryptohome
Crypttab is also configured correctly:
#
Mounting the /home partition on /dev/mapper/cryptohome (as root) returns :
mount: wrong fs type, bad option, bad superblock on /dev/mapper/cryptohome,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
with these errors in dmesg
[ 1966.915329] VFS: Can't find ext3 filesystem on dev dm-0
Creating new encrypted partitions (with similar settings) works like a charm. The partition worked perfectly for months before the upgrade and currently I don’t have any clue on how to access my encrypted data. Any help would be highly appreciated.