[PATCH] Turn off NETLOGON by default on standalone/member servers

Simo simo at samba.org
Wed Feb 25 20:33:05 MST 2015


On Wed, 2015-02-25 at 16:39 -0800, Jeremy Allison wrote:
> On Tue, Feb 24, 2015 at 02:17:27PM +1300, Andrew Bartlett wrote:
> > Our security advisory at
> > https://www.samba.org/samba/security/CVE-2015-0240 suggests
> > 
> > > 
> > > ========== 
> > > Workaround
> > > ==========
> > > 
> > > On Samba versions 4.0.0 and above, add the line:
> > > 
> > > rpc_server:netlogon=disabled
> > > 
> > > to the [global] section of your smb.conf. 
> > 
> > This patch enforces that, turning off NETLOGON when we are not a DC.  
> > 
> > Jeremy,
> > 
> > Can you check this doesn't break anything?  (I'm running an autobuild,
> > but I'm not sure that will find anything much for this). 
> 
> Hmmm. It *looks* right, but how can I check it doesn't
> break anything ? Might Windows clients make netlogon
> requests to member servers ? I can't think of a reason
> it should be running but at least in a Windows network
> the netlogon service still runs on member servers.

They may want to log in/deal with local member server accounts ?
Like the local Administrator account ?

Simo.

-- 
Simo Sorce



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