After upgrading from alpha18 to beta2 ports 139 and 445 are no longer bound

Andreas Oster aoster at
Tue Jul 10 10:55:20 MDT 2012

Am 10.07.2012 18:07, schrieb Thomas Hood:
> We are currently running 4.0.0~alpha18.dfsg1-4ubuntu2 (on Ubuntu
> 12.04) as an AD domain controller for a small LAN.  When I upgrade to
> 4.0.0~beta2+dfsg1-1 ports 139 and 445 are no longer bound and Windows
> clients can no longer join the domain, among other problems.
> E.g., before the upgrade nmap output includes the lines
>     139/tcp  open  netbios-ssn
>     445/tcp  open  microsoft-ds
> but afterwards does not.  I have tried to figure out what could have
> caused this change but have run into the problem of lack of
> documentation of Samba4.  Any ideas?
Hello Thomas,

I suspect this is caused by the changes in current Beta, it now uses
s3fs instead of ntvfs as default.

add the following to your smb.conf:

server services = +smb -s3fs
dcerpc endpoint servers = +winreg +srvsvc

this shound enable the old behavior.

best regards


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