Hello, I am quite new to linux and was wondering what this line of code did?
Thank you very much!
Another solution is to use openssl to generate encrypted passwords (it automatically chooses salt values for you, but you could duplicate what the perl code was doing by usint the -salt pa option
Code:
password=$(openssl passwd "$password")
Code:
password=$(openssl passwd -salt pa "$password")
Notice how the $password variable is quoted above, this is to protect against white space in the password.
I'm using SAM to add users on an HP and they're adding fine. But in /etc/group it only lists the group names. It's not adding the users in there. Is there a way to have them put in there without going into SAM and modifying the group and adding them? I guess what I want to happen is when I add... (1 Reply)
Hi guys!
Just was wanting to run a command that would allow me to seperate the currently logged in users.
Basically from this format:
user1
user2
user3
To:
user1|user2|user3
(Note the lack of a pipe at the end, not sure if thats possible)
Basically it needs to be in this... (11 Replies)
Hi
I have a txt file with 4 columns where I need to add 4 empty columns in the middle meaning that I need what is currently column 4 to be column 8 in a new file.
The idea is that I have to use the file as input in a program that reads the data in column 1 and 8, so the content of the other... (8 Replies)
Hello there,
I want to add new users to my system, so, being logged in as root I do useradd -m user_name, and the new user is added to the system. The problem is that it has more privileges than I expected. If I do su user_name then I am allowed to do cat /etc/passwd , so it is... (4 Replies)
Helle,
I want to create a .ksh script in order to realize the following :
I have a .txt file organized in a bloc of information, each bloc start with 000 as following:
000...
001...
003...
004...
000...
001...
003...
004...
.
.
My aim is to add a new... (6 Replies)
I apologize if this is a simple/stupid question. When I add users in smit as root, many(most) of the fields are automatically popluated with some basic default values.
Some other admins here have access to create users via sudo, however when they create users (sudo smit users), the user gets... (3 Replies)
Dear all,
I have a question. I have a txt.file as below. i want to add 3 more columns: column3=conlum 2*column2; column4=(1-column2)*(1-column2); column5=1-column3-column4. Do you know how to do it? Thanks a lot!
file:
column1 column2
a 1
b 20
c 30
d 3
... (2 Replies)
Hi guys,
I've a simple linux script (made by my friend), which adds users to the system from userlist file. it also creates user home dir and copies certain files to the directory. To be honest, am a newbie in scripting so am unable to fully understand how the script is working. unfortunately,... (30 Replies)
HI Guys,
I have below input.
Output Base on Below Condition.
1> if forth column is empty and next coming line have same name with \es then add that column name on all rows
2>rest of all are es:vsDataEUtranCellFDD
Input:-
CCL01736 CCL01736_7A_1 es:vsDataEUtranCellFDD ... (3 Replies)
Discussion started by: pareshkp
3 Replies
LEARN ABOUT MINIX
pwdauth
PWDAUTH() PWDAUTH()
NAME
pwdauth - password authentication program
SYNOPSIS
/usr/lib/pwdauth
DESCRIPTION
Pwdauth is a program that is used by the crypt(3) function to do the hard work. It is a setuid root utility so that it is able to read the
shadow password file.
Pwdauth expects on standard input two null terminated strings, the password typed by the user, and the salt. That is, the two arguments of
the crypt function. The input read in a single read call must be 1024 characters or less including the nulls. Pwdauth takes one of two
actions depending on the salt.
If the salt has the form "##user" then the user is used to index the shadow password file to obtain the encrypted password. The input
password is encrypted with the one-way encryption function contained within pwdauth and compared to the encrypted password from the shadow
password file. If equal then pwdauth returns the string "##user" with exit code 0, otherwise exit code 2 to signal failure. The string
"##user" is also returned if both the shadow password and the input password are null strings to allow a password-less login.
If the salt is not of the form "##user" then the password is encrypted and the result of the encryption is returned. If salt and password
are null strings then a null string is returned.
The return value is written to standard output as a null terminated string of 1024 characters or less including the null.
The exit code is 1 on any error.
SEE ALSO crypt(3), passwd(5).
NOTES
A password must be checked like in this example:
pw_ok = (strcmp(crypt(key, pw->pw_passwd), pw->pw_passwd) == 0);
The second argument of crypt must be the entire encrypted password and not just the two character salt.
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
PWDAUTH()