Hi,

I need to created some users in linux machine through RPM.
I am able to create users but unable to set passwd. Any ways to do it?

I am trying to build such RPM by calling a shell script in the %post section of spec file. But when I install this RPM passwd prompt doesn't stay for user input, it is skipped.

Any help greatly appreciated.

TIA,
Sachin

I realize this is a very old thread but it remains unanswered and there are those out there who might still require an answer to this question.

My solution to this was first to create a quick shell script to encrypt a password with MD5 encryption. Then in the %pre section, I added the following.

%pre
if [ `grep -c ^user /etc/passwd` = "0" ]; then
/usr/sbin/useradd -c 'User Comment' -d /path/to/user/home -p 'encrypted password' -s /bin/bash user
fi

And here is a quick script to create encrypted passwords

#!/usr/bin/perl -w

use Term::ReadKey;

# Enable(1) / Disable(0) debug output
$debug = 1;

# Enable(1) / Disable(0) verbose to display passords before encryption on a failed comparison
$verbose = 1;

# Check for command line argument to set the type of salt to use. Default is DES.
$salttype = shift;
if ( $salttype && $salttype =~ /-md5/ ) {
# Generate a random salt using MD5
$salt = '$1$';
$salt .= `cat /dev/urandom | tr -dc '0-9a-zA-Z' | head -c 8`;
} elsif ( $salttype ) {
print "\nUnrecognized option: $salttype, Exiting!\n\n";
print "USAGE: encpass [-md5]\n\n";
exit;
} else {
# Generate a random salt using DES
$salt = `cat /dev/urandom | tr -dc '0-9a-zA-Z' | head -c 2`;
}
if ($debug) { print "DEBUG-salt:\'$salt\':\n"; }

# Prompt for a password
print "\n\tEnter a NEW password to encrypt: ";
ReadMode('noecho');
$default_password = ReadLine(0);
chomp $default_password;

# Prompt for same password a second time to avoid typos
print "\n\tConfirm NEW password: ";
$confirm_password = ReadLine(0);
chomp $confirm_password;
ReadMode(0);
print "\n";

# Compare the two passwords and exit if they don't match
unless ($default_password =~ /^\Q$confirm_password\E$/) {
if ($debug) { print "pass1:$default_password:\npass2:$confirm_password:\n"; }
die "\nPasswords entered do NOT match!\n\n";
}

# Print out the encrypted password
print "\nYour password encrypted as: ";
print crypt($confirm_password, $salt);
print "\n\n";

Nice script but prompting for user input is not how RPM works or how it should work.

I think you need to read my first post a little closer. I specifically said I wrote a script to generate passwords and then used said encrypted passwords with the useradd command in the pre install script of my RPMs.

Sorry, missed that.


Somehow I get the feeling this is a bad idea. Luckily you aren't distributing those packages, right?

Nah, the rpm's I am generating are for my company's own software. Our software needs a user to run as to avoid the whole running as root security hole.