All Questions
7 questions
1
vote
3
answers
12k
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Cracking passwords after a pattern with John
So I am trying to find out how easy it is to crack a password using some great Linux tools.
We all know about John as a password cracker and how great it is. But how about specifying a pattern.
Let'...
194
votes
6
answers
31k
views
Isn't Ubuntu's system prompt for my password spoofable?
Sometimes, Ubuntu shows the following window:
This window can be caused by some background processes running, such as an automatic update, or a process which reports bugs to Canonical which manifests ...
4
votes
2
answers
8k
views
Is user password in ubuntu 13.04 in plain text?
Is it stored in plain text or not?
Where can I find the file that contains the username and password for my accounts in Ubuntu 13.04?
58
votes
6
answers
27k
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How secure is NOPASSWD in passwordless sudo mode?
On all our boxes we have ssh access via keys. All keys are password protected. At this moment the sudo mode is not passwordless. Because the number of VMs are growing in our setup, we investigate the ...
36
votes
11
answers
12k
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One liner to create passwords in linux?
How do you create a readable password using bash with one line? What if i'm looking for 128 bits of entropy?
EDIT
By readable I mean the 94 printable ascii characters (without space). It can use ...
14
votes
5
answers
9k
views
Security of the KWallet password encrypting application?
According to http://gaganpreet.in/blog/2013/07/24/kwallet-security-analysis/ , the KWallet password management system is quite weak, it uses key splitting, Blowfish 56, and no salt.
The key ...
2
votes
2
answers
12k
views
How to recover a lost zip file password (Extract Zip Spec '2.0')
I want to recover my backup file, but I can't find the password. The password contains 12-20 characters (As!@$123)
user@PC:/media/user/MyData$ zipdetails -v backup2.zip
0000000 0000004 50 4B 03 04 ...