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Lucky those who have knowledge to help and assist others :)


1d
comment What is the purpose of using shift in bash scripts?
@goldilocks very true. Instead of "rotate" I should have better found a way to use another word, something like "move the arguments forward in the argument variables". Anyway I hope the examples in the text and the link to the reference will have made it clear nonetheless.
2d
answered What is the purpose of using shift in bash scripts?
Dec
5
comment Are there alternatives to using `udev`?
@jasonwryan somewhat yes, still there is some value since it advices some ways to manually deal with those tasks normaly covered in the udev functionality. It is somewhat also ok to point out the strengthes of this alternative approach.
Nov
16
comment Will kdbus replace D-Bus?
thank you for your insight!, Can you (and do you dare to) give a time horizon/estimation as regards to when, or if the kdbus based on the insides? Having read the article I am not even sure if kdbus might not even eventually be rejected still? (which coming from a security appreciative perspective I would not mind very much :)
Nov
15
asked Will kdbus replace D-Bus?
Nov
7
awarded  Nice Question
Oct
28
awarded  Notable Question
Oct
27
comment Lock system after awake suspend (incl. forced-shutdowns system after countdown)?
@gnp thank you for pointing to that mistake, so I could correct it.
Oct
27
revised Lock system after awake suspend (incl. forced-shutdowns system after countdown)?
corrected a mistake in the script
Oct
26
comment How to let a daemon prompt for a password (in Xsession, keyloggersafe)?
I tested both gnome-keyring-prompt and ssh-askpass. Yes, both grapped the keyboard. But Caution!! No, they appear unsafe against a xinput test-xi2 test. Hence I cannot see any way to have a protected password being entered inside an XSession. This makes the askubuntu answers rather right, sorry. Thanks for all the explanations anyway!
Oct
26
comment How to let a daemon prompt for a password (in Xsession, keyloggersafe)?
pertph I cannot thank you enough for the information! For long I desire to switch to wayland simple for not being able to safe my gnome-terminal. I will check if your suggested options render this ( theinvisiblethings.blogspot.de/2011/04/… ) less severe and indeed I can even in Xorg server prevent the in-X-session keylogging. Other keylogging attacks - the "under the X application layer" as you put it are less my concern. As mentioned here (security.stackexchange.com/q/55695) most if present represent anyway a total defeat situation.
Oct
26
comment How to let a daemon prompt for a password (in Xsession, keyloggersafe)?
Thank you for the suggestions. The problem with the X11 Server and apparent impossible keylogger safety ( askubuntu.com/questions/115669/… ) does not motivate much going the X11 way at all. Since I trust the person in front of the keyboard I do not perceive the security weakness simply using say /dev/tty4 for input of the password without a prior login. Sure some already root priviledged rogue process could attack the chvt way of input, but at this point there was no security anymore. Still many thanks for the x11-askpass suggestion.
Oct
26
comment How to let a daemon prompt for a password (in Xsession, keyloggersafe)?
Thank you for eluding to the conceptional background. In the case here the thing is to unlock a USB-pendrive when inserted. Somehow the udev-deamon starts a script which to unlock would need to get the password/key from the user. I think I let the daemon simply temporarily switch (chvt) to a free vt and prompt there for I understand I escape X keylogging problem after all. Also a prompt program on the console is easier made as the mentioned UI part of the schema suggested.
Oct
26
accepted How to let a daemon prompt for a password (in Xsession, keyloggersafe)?
Oct
26
asked How to let a daemon prompt for a password (in Xsession, keyloggersafe)?
Oct
25
comment Is it possible to create an edited copy of a file without using up extra disk space?
As you mention ln does not really make a copy. It`d be better descriped as that it creates a second filename in the filesystem for the very same inode related data (being the file).
Oct
25
answered Lock system after awake suspend (incl. forced-shutdowns system after countdown)?
Oct
25
comment Lock system after awake suspend (incl. forced-shutdowns system after countdown)?
The solution works almost perfect, yet I want to mention this. vlock (as I looked it up in the source, version 2.2.2) tries hard to disable vt switching chvt yet the pm-suspend (in the version of pm-utils 1.4.1-9fix.ubuntu12.04) when reawaking allows for about 1-2 seconds (on my system) to change to X via Alt-Crtl-F7. For security's sake one should test if pm-suspend screws up the vt-switch-prevention attampted by vlock.
Oct
25
comment Lock system after awake suspend (incl. forced-shutdowns system after countdown)?
Wow! Thank you! Is the script working independent of the init system?
Oct
22
awarded  Nice Question