[Samba] Possible security issue with DHCP script.

Andrew Bartlett abartlet at samba.org
Tue Jun 21 21:51:26 UTC 2022


On Tue, 2022-06-21 at 12:43 -0400, Jonathon Reinhart via samba wrote:
> I've also thought about putting DHCP clients dynamic DNS records in a
> 
> separate subdomain altogether. I.e.
> 
> 
> 
> contoso.com -- Main domain
> 
> corp.contoso.com -- AD domain
> 
> dyn.contoso.com -- Dynamic DNS registrations
> 
> 
> 
> Note that this *only* applies to DHCP clients. The majority of your
> 
> domain-joined machines (Windows and SSSD at least) should already be
> 
> performing dynamic DNS updates using their machine credentials, and
> 
> the ACLs on the records prevent one client from stomping on another
> 
> client's (DC's) records.

Having DCHP controlled dynamic DNS names in a subdomain is/was the
normal practice as I recall it from being a sysadmin many, many moons
ago.

Andrew Bartlett

-- 
Andrew Bartlett (he/him)       https://samba.org/~abartlet/
Samba Team Member (since 2001) https://samba.org
Samba Team Lead, Catalyst IT   https://catalyst.net.nz/services/samba

Samba Development and Support, Catalyst IT - Expert Open Source
Solutions








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