[Samba] Re: FreeBSD: Changing UNIX password - Password Chat?
Rob Mason
rob at cissp.org.uk
Thu Feb 21 20:59:05 GMT 2008
Hi,
I've had this problem on FreeBSD. Basically the behaviour of 'passwd'
changed somewhere between releases 5 and 7. I solved this by writing a
shell wrapper for the passwd tool. As simple as:
#!/bin/sh
/usr/bin/passwd -l $1
echo "Password Changed"
Call the file "smbpass.sh" and alter smb.conf accordingly:
passwd program = /root/smbpass.sh %u
passwd chat = *Password* %n\n *Password* %n\n *Changed*
unix password sync = Yes
Using wrappers makes a great deal of sense...
For a mission critical production system you may want to put more error
checking into the shell script, but hey, you get the idea ;-)
Hope this helps.
R
Jon Theil Nielsen wrote:
> I can't get my Samba PDC (FreeBSD 7,0-BETA3) changing UNIX passwords
> from Windows clients (Ctrl-Alt-Del).
> I now have the password chat debug active and I have loglevel 100.
> I am not certain about the syntax in the password chat. But if I from
> a console try to change the password of a given user (here testuser1),
> I see these lines:
>
> mflserver3# /usr/bin/passwd testuser1
> Changing local password for testuser1
> New Password: (entering the password)
> Retype New Password: (entering it again)
>
>>From that i guess the expression in the chat would be:
> *Changing*local*password*for* %u\n *New*Password* %n\n
> *Retype*New*Password* %n\n
>
> Selected parts of the log shows:
>
> [2008/02/13 17:47:07, 100] smbd/chgpasswd.c:expect(279)
> expect: expected [*Changing*local*password*for*] received [Changing
> local password for testuser1
> New Password:] match yes
> [2008/02/13 17:47:07, 10] smbd/chgpasswd.c:expect(290)
> expect: returning True
> [2008/02/13 17:47:07, 100] smbd/chgpasswd.c:expect(242)
> expect: sending [testuser1
> ]
> [2008/02/13 17:47:07, 10] lib/util_sock.c:read_socket_with_timeout(476)
> read_socket_with_timeout: timeout read. select timed out.
> [2008/02/13 17:47:07, 100] smbd/chgpasswd.c:expect(279)
> expect: expected [*New*Password*] received [
> Retype New Password:] match yes
> [2008/02/13 17:47:07, 10] smbd/chgpasswd.c:expect(290)
> expect: returning True
> [2008/02/13 17:47:07, 100] smbd/chgpasswd.c:expect(242)
> expect: sending [VerySecret
> ]
> [2008/02/13 17:47:10, 10] lib/util_sock.c:read_socket_with_timeout(476)
> read_socket_with_timeout: timeout read. select timed out.
> [2008/02/13 17:47:10, 100] smbd/chgpasswd.c:expect(279)
> expect: expected [*Retype*New*Password*] received [
> Mismatch; try again, EOF to quit.
> New Password:] match no
> [2008/02/13 17:47:10, 2] smbd/chgpasswd.c:expect(285)
> expect: Unknown error: 0
> [2008/02/13 17:47:10, 3] smbd/chgpasswd.c:talktochild(316)
> Response 3 incorrect
> [2008/02/13 17:47:10, 3] smbd/chgpasswd.c:chat_with_program(372)
> chat_with_program: Child failed to change password: testuser1
> [2008/02/13 17:47:10, 3] smbd/sec_ctx.c:pop_sec_ctx(415)
> pop_sec_ctx (1035, 1036) - sec_ctx_stack_ndx = 1
> [2008/02/13 17:47:10, 5] rpc_parse/parse_samr.c:init_samr_r_chgpasswd_user(7576)
> init_samr_r_chgpasswd_user
> [2008/02/13 17:47:10, 5] rpc_server/srv_samr_nt.c:_samr_chgpasswd_user(1581)
> _samr_chgpasswd_user: 1581
> [2008/02/13 17:47:10, 5] rpc_parse/parse_prs.c:prs_debug(84)
> 000000 samr_io_r_chgpasswd_user
> [2008/02/13 17:47:10, 5] rpc_parse/parse_prs.c:prs_ntstatus(769)
> 0000 status: NT_STATUS_ACCESS_DENIED
>
> As told, I'm not confident with the syntax. Have I made it wrong? Or
> can you see anything else from the log that can pinpoint the problem?
> I would believe that there must be several admins out there who use
> the combination of of Samba and FreeBSD without having these problems.
>
> Cheers,
> Jon Theil Nielsen
More information about the samba
mailing list