I have run into issues where by IP it worked, but not by name (this was with one particular samba server, with VPN clients, with WINS and Netbios not enabled over VPN.) So it does seem possible that the server handles requests based on name and IP differently.

Are all machines (samba, win 2003, clients) pointing to the same WINS server?
Are all machines pointing to the same DNS server?
Is the AD DC the WINS and DNS server?

Does the AD domain name space match the DNS domain name space?

Does the samba server krb5.conf have entries for the AD DC? (Not sure if this is really necessary.)

In smb.conf, what is "name resolve order" set to?

On 03/30/2011 10:42 AM, Walt Park wrote:
Hi.

I've got some samba servers (3.0.33-3.29.el5_6.2, on redhat 5) that join a
windows 2003 AD.

When mounting the volume from a windows workstation, if I use
\\ip.address.here
it fails saying "The trust relationship between this workstation and the
primary domain failed'"

If I mount with \\fully.qualified.name it works just fine. Forward and
reverse DNS match, and
\\ip.address.here works for a microsoft box but not any of the samba boxes.

When I check the smbd.log, I never see the failed connections at the samba
box, only the ones
that worked with FQDN, which to me suggests the failure happens because AD
isn't passing the
connection to samba, which my AD admins say is because something in samba
isn't working like
windows, so the AD doesn't pass the request to the samba box because it
doesn't look right to AD.

my smbd.conf is :
--------------------
# Global parameters
[global]
         workgroup = MYDOMAIN
         security = ADS
         realm = MY.DOMAIN
         load printers = No
         printing = bsd
         preferred master = No
         domain master = No
         local master = no
         os level = 0
         wins server = xxx.xxx.xxx.xxx
         ldap ssl = no
         browseable = yes
         restrict anonymous = yes
         guest account = nobody
         invalid users = nobody
         encrypt passwords = yes

[homes]
         comment = Home Directories
         writeable = Yes
         browseable = No
---------------------------

Any idea why IP mount fails trust with 2003 AD but Name would be ok?
Is this a microsoft-ism to hate on samba, or am I missing something in my
config?

Does this fail for everyone or just me?

test: start>run:  \\ip.of.samba.box
        start>run:  \\dns.name.of.box

if you have browse, it should show the available shares.

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