CODEWITHSUNDEEP
automationinstallationdebiansamba
UnkwnTech
UnkwnTech

Reputation: 90951

Piping password to smbpasswd

How can I pipe the new password to smbpasswd so I can automate my installation process.

Upvotes: 37

Views: 36775

Answers (8)

Sam Morris
Sam Morris

Reputation: 2027

You don't need to use smbpasswd. You can take your new password and calculate its NT hash (encode with UTF-16-LE and calculate the MD4 digest), encode it as a hexadecimal string, and then run pdbedit -u USER --set-nt-hash=HASH.

Upvotes: 0

Samuli Seppänen
Samuli Seppänen

Reputation: 21

I had to create a new Samba user in a Puppet 5.x Exec resource and for various reasons none of the above worked. Fortunately this rather silly-looking command worked:

yes vagrant|head -n 2|smbpasswd -a -s vagrant

Password here is of course "vagrant".

Upvotes: 2

ReklatsMasters
ReklatsMasters

Reputation: 710

Use this echo 'somepassword' | tee - | smbpasswd -s

Upvotes: 5

Charles Prince
Charles Prince

Reputation: 21

This unfortunately is not desirable for two reasons: 1) if the user uses a combination of '\n' in the password there will be a mismatch in the input 2) if there are unix users on the system, then a user using the utility ps may see the password

A better way would be to put the names in a file and read from the file and use python pexpect to read them, not like below, but the simple script is enough to see how to use pexpect

#!/usr/bin/python
#converted from: http://pexpect.sourceforge.net/pexpect.html
#child = pexpect.spawn('scp foo [email protected]:.')
#child.expect ('Password:')
#child.sendline (mypassword)
import pexpect
import sys
user=sys.argv[1]
passwd=sys.argv[2]
child = pexpect.spawn('/usr/bin/smbpasswd -a '+str(user))
child.expect('New SMB password:')
child.sendline (passwd)
child.expect ('Retype new SMB password:')
child.sendline (passwd)

then try: ./smbpasswd.py userName1 'f#@(&*(_\n895'

Upvotes: 2

Bruno De Fraine
Bruno De Fraine

Reputation: 47366

I use the following in one of my scripts: 

   echo -ne "$PASS\n$PASS\n" | smbpasswd -a -s $LOGIN

With echo:

-e : escape sequences, like \n

-n : don't add implicit newline at end

With smbpasswd:

-a : add new user

-s : silent

Upvotes: 28

UnkwnTech
UnkwnTech

Reputation: 90951

Thanks to Mark I found the answer:

(echo newpassword; echo confirmNewPassword) | smbpasswd -s

BTW: (echo oldpasswd; echo newpasswd) | smbpasswd -s does not work.

Upvotes: 52

Mark Harrison
Mark Harrison

Reputation: 304664

Try something like this:

(echo oldpasswd; echo newpasswd) | smbpasswd -s

Upvotes: 13

icco
icco

Reputation: 3094

using either pipelines or redirection.

Upvotes: -4

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