When you run smbd -V on your Snow Leopard installation, you'll see it's running SAMBA version 3.0.28a-apple. While I'm not sure how much difference the "-apple" makes, version 3.0.28a is old. Very old. In other words, it's riddled with bugs. Apple hasn't updated SAMBA in 3 years, and for Lion, they're dumping it altogether for something homegrown. The reason? SAMBA is now GPLv3.
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Member since:2006-03-02
Member since:2006-03-02
I would love to know how you manage to use kerberos directly without using a PAM plugin. From your comment, I'm inferring that although basically every Linux app that uses authentication uses PAM to communicate with the underlying authentication system (system-auth, kerberos, LDAP, etc.), you're saying that Netatalk can use Kerberos directly. How do you make that work?
Thanks.
Member since:2005-12-13
Yes, indeed it does!
-Actually, Netatalk uses its own set of authentication plugins that work independently of the surrounding architecture.
Netatalk kan use Kerberos for authentication with just a singe requirement met: The Kerberos keytab (e.g. /etc/krb5.keytab) needs to contain a service principal key for use with Netatalk. This is usually called afpserver/yourserver.example.org@EXAMPLE.ORG .
Create this service principal key in the following manner:
$ kadmin.local: addprinc --randkey afpserver/yourserver.example.org
(you can omit the realm as it's implied by kadmin.local)
then:
$ kadmin.local: ktadd -k /etc/krb5.keytab afpserver/yourserver.example.org
to add the new key to the existing keytab.
Once you've created this from kadmin.local, you can go on to setup Netatalk to use the newly created key by creating a setup like this:
- -tcp -no ddp -uamlist uams_gss.so -k5service afpserver -k5keytab /etc/krb5.keytab -k5realm EXAMPLE.ORG -fqdn yourserver.example.org:548
Basically, this tells Netatalk to bind to all interfaces, use TCP protocol, use GSSAPI (Kerberos5) for authentication, using the newly created afpserver service principal key from the system's Kerberos keytab and present to others a service of the type afpserver, identifying itself as yourserver.example.org within the realm EXAMPLE.ORG running AFP on port 548 
I hope this example helps!
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Member since:
2005-12-13
I wasn't aware that these problems existed with TM backups. Let's hope that Netatalk 2.2 and its reconnect features cure this problem once and for all.
Concerning the problems with authentication, I've used Netatalk for several years with Kerberos only authentication and I have yet to experience the trouble you describe.