Migrating authentication of Samba from SMBPASSWD to TDB

Was addicted various after you upgrade the OS of an old Samba server. Put It also was using a set of 2.x era become 3.x are seems to the have emerged.

Changes in 3.x

Format and location of the password file have been modified in 3.x.

/etc/smbpasswd /var/lib/samba/passdb.tdb

Also pdbedit command is provided for the administrator. And though it must have administrator privileges, and powerful general-purpose, than SMBPASSWD.

Check the setting

By extracting a set of smb.conf in Testparm command to confirm that the Tdbsam are specified in the authentication DB.

% testparm -s /etc/samba/smb.conf ... passdb backend = tdbsam ... %

I make Passdb.tdb from the old smbpasswd file

Copy Smbpasswd.bak to work for in The/etc and/var/backups.

% sudo cp /etc/smbpasswd.bak /var/lib/samba/smbpasswd.txt

I to convert Pdbedit.

% sudo pdbedit -i smbpasswd:/var/lib/samba/smbpasswd.txt \ -e tdbsam:/var/lib/samba/smbpasswd.tdb

Retry fix the problem and get an error. This is simply remove the bad line.

% sudo vi /var/lib/samba/smbpasswd.txt (remove invalid users) % sudo rm /var/lib/samba/smbpasswd.tdb (try again)

I Replace the password file.

% sudo /etc/init.d/samba stop % sudo mv /var/lib/samba/passdb.tdb{,.bak} % sudo mv /var/lib/samba/{smbpasswd,passdb}.tdb % sudo /etc/init.d/samba restart

To test if you can logon.

% smbclient --debuglevel=3 //192.168.0.x/jdoe -U jdoe (jdoe‘s smb password) smb: \> exit %

Troubleshooting

Really sure the user is registered.

% sudo pdbedit -u jdoe -v

To register it if it's not registered.

% sudo pdbedit -a -u jdoe

Reference

It:whole Picture Revised version of Samba 3.0 [Part II] (3/3)/Takahashi Motonobu support of a variety of authentication Database
Http://www.atmarkit.co.jp/flinux/special/samba3b/samba06.html

Migrating authentication of Samba from SMBPASSWD to TDB