Comments for Little Impact http://blog.littleimpact.de Things that have more than zero impact (on my live) Wed, 08 Sep 2010 03:40:57 +0000 http://wordpress.org/?v=2.5.1 Comment on Automatic encryption of home directories using TrueCrypt 6.2a and pam_exec by Martin http://blog.littleimpact.de/index.php/2009/09/14/automatic-encryption-of-home-directories-using-truecrypt-62-and-pam_exec/#comment-9458 Martin Fri, 20 Aug 2010 20:22:41 +0000 http://blog.littleimpact.de/?p=22#comment-9458 Thanks for script. For Ubuntu 10.04 and TrueCrypt 6.1a in /bin/cryptmount.sh file instead: head -c -1 | truecrypt -t --protect-hidden=no -k "" \ "$CRYPTVOLUME" "$MOUNTPOINT" I changed to: head | truecrypt -t --protect-hidden=no -k "" \ "$CRYPTVOLUME" "$MOUNTPOINT" Because truecrypt (in this version) expect new line character after password Thanks for script.
For Ubuntu 10.04 and TrueCrypt 6.1a in /bin/cryptmount.sh file
instead:
head -c -1 | truecrypt -t –protect-hidden=no -k "" \
"$CRYPTVOLUME" "$MOUNTPOINT"
I changed to:
head | truecrypt -t –protect-hidden=no -k "" \
"$CRYPTVOLUME" "$MOUNTPOINT"
Because truecrypt (in this version) expect new line character after password

]]> Comment on Automatic encryption of home directories using TrueCrypt 6.2a and pam_exec by Jochen Ritzel http://blog.littleimpact.de/index.php/2009/09/14/automatic-encryption-of-home-directories-using-truecrypt-62-and-pam_exec/#comment-8520 Jochen Ritzel Fri, 30 Apr 2010 15:41:18 +0000 http://blog.littleimpact.de/?p=22#comment-8520 Hey, thanks for all this, I had no idea what PAM can do, but worked out great. I just wanted to say that by now, `pam_exec` works out of the box on ubuntu, no need to compile anything. Also, it's much simpler to mount your encrypted media when you save them as favorites and mount them with `truecrypt --auto-mount=favorites --load-preferences` and dismount them with `truecrypt --dismount` Hey, thanks for all this, I had no idea what PAM can do, but worked out great. I just wanted to say that by now, `pam_exec` works out of the box on ubuntu, no need to compile anything. Also, it's much simpler to mount your encrypted media when you save them as favorites and mount them with `truecrypt –auto-mount=favorites –load-preferences` and dismount them with `truecrypt –dismount`

]]> Comment on Constantize in Python by Justin http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-7048 Justin Thu, 17 Dec 2009 01:36:06 +0000 http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-7048 well, being able to obtain a reference to an object in the global namespace using its name as a string is orthogonal to deciding what you want to do with it. I was just providing a better alternative to using regular expressions and eval(). you could easily maintain a whitelist of names that you will allow lookups for. i.e. whitelist = ['A','B'] def str2class(str): return str in whitelist and globals()[str] well, being able to obtain a reference to an object in the global namespace using its name as a string is orthogonal to deciding what you want to do with it. I was just providing a better alternative to using regular expressions and eval().

you could easily maintain a whitelist of names that you will allow lookups for. i.e.

whitelist = ['A','B']

def str2class(str):
return str in whitelist and globals()[str]

]]> Comment on Constantize in Python by Henryk http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-7046 Henryk Wed, 16 Dec 2009 23:26:51 +0000 http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-7046 @Justin Thank you for your comment. Your proposition looks better than an "eval", but you still need to check whether the class is "allowed". @Justin
Thank you for your comment. Your proposition looks better than an "eval",
but you still need to check whether the class is "allowed".

]]> Comment on Constantize in Python by Justin http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-7043 Justin Wed, 16 Dec 2009 21:20:36 +0000 http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-7043 or you could just use globals()["MyClass"] or you could just use globals()["MyClass"]

]]> Comment on NoArchive-Tag for Robots-Meta by My Favorite WordPress Plugins | Daniel Haïm http://blog.littleimpact.de/index.php/2008/07/03/noarchive-tag-for-robots-meta/#comment-6594 My Favorite WordPress Plugins | Daniel Haïm Thu, 26 Nov 2009 13:39:58 +0000 http://blog.littleimpact.de/index.php/2008/07/03/noarchive-tag-for-robots-meta/#comment-6594 [...] Add noarchive tags to your blog (Thanks to Henryk Gerlach). [...] [...] Add noarchive tags to your blog (Thanks to Henryk Gerlach). [...]

]]> Comment on Automatic encryption of home directories using TrueCrypt 6.2a and pam_exec by Henryk http://blog.littleimpact.de/index.php/2009/09/14/automatic-encryption-of-home-directories-using-truecrypt-62-and-pam_exec/#comment-5171 Henryk Sat, 10 Oct 2009 07:46:34 +0000 http://blog.littleimpact.de/?p=22#comment-5171 @Reid: Yes, you're absolutely right. I fixed the post. Thank you and sorry for the inconvenience to all. @Reid:
Yes, you're absolutely right. I fixed the post. Thank you and sorry for the inconvenience to all.

]]> Comment on Automatic encryption of home directories using TrueCrypt 6.2a and pam_exec by Reid Linnemann http://blog.littleimpact.de/index.php/2009/09/14/automatic-encryption-of-home-directories-using-truecrypt-62-and-pam_exec/#comment-5163 Reid Linnemann Fri, 09 Oct 2009 19:28:18 +0000 http://blog.littleimpact.de/?p=22#comment-5163 I think there's a typo/misnomer here in rolling your own pam_exec.so. pam_1.0.1.orig.tar.gz doesn't have pam_exec patched for expose_authtok. I grabbed pam_1.1.0_orig.tar.gz and built a working pam_exec.so using the remaining instructions. If you follow the instructions as-is, the pam_exec module will think 'expose_authtok' is the command to run in the child process. I think there's a typo/misnomer here in rolling your own pam_exec.so. pam_1.0.1.orig.tar.gz doesn't have pam_exec patched for expose_authtok. I grabbed pam_1.1.0_orig.tar.gz and built a working pam_exec.so using the remaining instructions. If you follow the instructions as-is, the pam_exec module will think 'expose_authtok' is the command to run in the child process.

]]> Comment on Constantize in Python by Little Impact » Blog Archive » Constantize with Care http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-4763 Little Impact » Blog Archive » Constantize with Care Tue, 15 Sep 2009 11:53:26 +0000 http://blog.littleimpact.de/index.php/2009/02/08/constantize-in-python/#comment-4763 [...] I also have some notes on Constantize in Python. Share and [...] [...] I also have some notes on Constantize in Python. Share and [...]

]]> Comment on Constantize with Care by Little Impact » Blog Archive » Constantize in Python http://blog.littleimpact.de/index.php/2008/08/13/constantize-with-care/#comment-4762 Little Impact » Blog Archive » Constantize in Python Tue, 15 Sep 2009 11:49:48 +0000 http://blog.littleimpact.de/index.php/2008/08/13/constantize-with-care/#comment-4762 [...] noted in another post constantize is prone to code injections. We have two protections built in. The regular expression makes sure that eval does not execute [...] [...] noted in another post constantize is prone to code injections. We have two protections built in. The regular expression makes sure that eval does not execute [...]

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