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Questions tagged [shadow]

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105 questions
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2 votes
0 answers
41 views

How to configure PAM to asks for password, and try recognize of face or input additional password. I need to use sudo by face. Additional password is required to enhance security (nobody will run sudo ...
nintyfan's user avatar
  • 123
0 votes
1 answer
201 views

I don't know what's algorithm of storing password in /etc/shadow in Linux. I tested via the following script via python: import hashlib message = b"123" md5_hash = hashlib.md5(message)....
PersianGulf's user avatar
  • 11.3k
2 votes
1 answer
1k views

I have an embedded Linux device with a fairly modern Linux kernel. However, a strange thing happened with the last update: when a password is modified with passwd for any user, the salt value in /etc/...
Robindev's user avatar
  • 23
0 votes
1 answer
98 views

I noticed passwd utility doesn't support the -s/--stdin option on Debian which allows to read password from standard input. With this option you can do something like echo mypassword | passwd -s ...
designerrr's user avatar
  • 111
0 votes
1 answer
60 views

We run a small lab with 20 Linux systems (RaspberryPI, NAS, Desktop PCs) for research with 4 scientists who all need sudo permissions. We trust all 4 users as they have sudo permission and physical ...
Jonas Stein's user avatar
  • 4,338
0 votes
1 answer
189 views

I have an encrypted hard drive. The hard drive, root user, and primary user all share the same password. I have successfully logged in but seem to have forgotten the password. I'm looking to limit the ...
mpr's user avatar
  • 1,204
0 votes
0 answers
54 views

I have the following line in my /etc/shadow file (SALT and HASHED_PASSWORD are not real values for obvious reason). And I understand $6 means SHA512 is used. testuser:$6$SALT$HASHED_PASSWORD:19591:0:...
DrizzleX's user avatar
  • 175
0 votes
2 answers
754 views

What is the practical difference between setting *LK* in /etc/shadow and setting /usr/sbin/nologon in /etc/passwd? When would we choose one over the other? When would we combine them?
Lyubomir's user avatar
  • 113
0 votes
1 answer
266 views

on my server running UnraidOS I got a bit suspicious. There are both 'passwd' and 'passwd-' files (same goes for shadow(-)). These ones should be only backups as I understood. Running: root@Unraid-...
Dakanomo's user avatar
  • 1
0 votes
0 answers
130 views

Windows has a neat feature: it has a built-in password manager/storage which gets unlocked automatically when you log in. Are there any Linux applications which are linked to pam.d, so that entering ...
Artem S. Tashkinov's user avatar
  • 33k
0 votes
1 answer
155 views

I had created two users on Linux with the same exact passwords, but when I looked at the /etc/shadow file, I found that the hashed values look different, although the salt file is the same. (Please ...
David Nicola's user avatar
  • 3
-1 votes
1 answer
304 views

Kindly assist to to get user creation details (date and time) and users login details in Solaris 10
eliot's user avatar
  • 31
0 votes
1 answer
122 views

I want to know if there is a way to get the last password change date + time stamp ?
yolook_daemon's user avatar
  • 1
3 votes
1 answer
2k views

I want to get the password hash of the sys user in Debian (but the password is preferred). I heard that all password hashes are stored in the /etc/shadow file, but there isn't a password hash for the ...
Vad Sim's user avatar
  • 205
0 votes
1 answer
134 views

I am using Debian 11,set password with shadow. I random generate password into file pas: cat pas "Th3P@ssw0rd" When I update password to normal user has sudo privilege, sudo passwd username ...
kittygirl's user avatar
  • 111

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