[Samba] Problem with winbind and nsswitch.conf on Solaris ..

Hello,

I'm having some problems using winbind on Samba 3.0.1 with /etc/nsswitch.conf on a Solaris 8 server. The Solaris 8 release is 10/00.

The basic problem that I have is that there are restrictions on what nsswitch.conf can contain if password ageing is used.

My setup is that users connecting to shares on the Solaris samba server are authenticated against a accounts on a Windows Active Directory Domain. (That is, smb.conf is configured to use "security = ADS"). I am using winbind on the Solaris samba server to enumerate Active Directory Domain users and groups as standard unix groups and users.

I have installed the winbind libraries thus:

cp libnss_winbind.so /lib
ln -s /usr/lib/libnss_winbind.so /usr/lib/libnss_winbind.so.1
ln -s /usr/lib/libnss_winbind.so /usr/lib/nss_winbind.so.1
ln -s /usr/lib/libnss_winbind.so /usr/lib/nss_winbind.so.2

I have also edited /etc/nsswitch.conf from using

passwd: files
group: files

to

passwd: files winbind
group: files winbind


The problem that I have is that there are restrictions on what nsswitch.conf can contain if password ageing is used.

This is indicated in the Solaris 8 man page for nsswitch.conf(4), which says:

Interaction with Password Aging
When password aging is turned on, only a limited set of pos-
sible name services are permitted for the passwd: database
in the /etc/nsswitch.conf file:

passwd:
files

passwd:
files nis

passwd:
files nisplus

passwd:
files ldap

passwd:
compat

passwd_compat:
nisplus

passwd_compat:

ldap

Any other settings will cause the passwd(1) command to fail
when it attempts to change the password after expiration and
will prevent the user from logging in. These are the only
permitted settings when password aging has been turned on.
Otherwise, you can work around incorrect passwd: lines by
using the -r repository argument to the passwd(1) command
and using passwd -r repository to override the nsswitch.conf
settings and specify in which name service you want to
modify your password.


So, using winbind like this forces me to use `passwd -r files` to do operations using the passwd command.

If I don't use the "-r" switch on the password command, an error is produced due to the presense of winbind in the nsswitch.conf file. The error is

passwd: Unsupported nsswitch entry for "passwd:". Use "-r repository ".


We have some applications that will break because of this and we have to use password ageing because of our security policy.

Is there any way of overcoming this limitation with nsswitch.conf and winbind on Solaris 8?

Thanks,

David Legge


David Legge Ph.D.
Corporate Applications Server Support Officer
Information Management Branch
Department of Infrastructure, Energy and Resources

10 Murray Street, Hobart

GPO Box 936, Hobart, 7001
Tasmania, Australia

Telephone: (03) 62337148
Facsimile: (03) 62332573




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