Recipe 23.21. Keeping Samba and Linux Passwords in Sync
23.21.1 Problem
Your Samba users know
they can use smbpasswd to change their own
passwords, but when they do this, their Linux passwords on the Samba
server do not change. You would like a method to keep them
synchronized.
23.21.2 Solution
Add these lines to the global section of
smb.conf:
unix password sync = yes
passwd program = /usr/bin/passwd %u
passwd chat = "*Enter OLD password*" %o\\n "*Enter NEW password*" %n\\n "*Reenter NEW
password*" %n\\n "*Password changed*"
This calls passwd to change the
users' passwords in /etc/passwd
when they change their Samba passwords. passwd
chat controls the change process and gives feedback. You
can modify this to suit your own needs.
23.21.3 Discussion
This is a one-way trip; it does not update the Samba passwords when
users change their Linux passwords.
The macro substitutions used in passwd chat are
these:
- %u
-
Username.
- %o
-
Old password.
- %n
-
New password.
- \\n
-
Newline, escaped. This breaks the passwd chat
output into separate lines, instead of printing it all on one line.
For a complete list of Samba's substitution macros,
see smb.conf(5), in the
"Variable Substitutions" section.
23.21.4 See Also
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