RE: unable to join domain from dmz
From: Andrew Shore (andrew.shore_at_holistecs.com)
Date: 12/28/04
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Date: Tue, 28 Dec 2004 21:59:13 -0000 To: "Phillip McCollum" <PMcCollum@sanmanuel.com>, <dan.tesch@comcast.net>, <security-basics@lists.securityfocus.com>
Yes, yes it is.
-----Original Message-----
From: Phillip McCollum [mailto:PMcCollum@sanmanuel.com]
Sent: 01 September 2004 18:51
To: dan.tesch@comcast.net; Andrew Shore;
security-basics@lists.securityfocus.com
Subject: RE: unable to join domain from dmz
Correct me if I'm wrong, but isn't it just a bad idea in general to have
any sort of Domain Controller data on a server in the DMZ?
Phillip McCollum
Network Technician
San Manuel Band of Mission Indians
pmccollum - at - sanmanuel.com
>>> "Andrew Shore" <andrew.shore@holistecs.com> 8/26/2004 7:33:52 AM
>>>
conduit permit ip host 172.17.0.10 172.17.0.0 255.255.0.0
Is this the real line from the pix or a typo in the question?
You should need conduit command from the 172.17.x.x to 172.17.x.x as
this does not go through the firewall
You need to allow netbios traffic to and from the BDC sever on the dmz
to the PDC.
Also as stated before you will need a wins server.
conduit permit icmp any any is allow the ping command.
Also you should really use access-list rather than conduit commands as
I
believe Cisco are dropping support for the conduit command with the
next
PIX OS release, mind you they've said that for years.
Hope this helps
Andy
-----Original Message-----
From: Dan Tesch [mailto:dan.tesch@comcast.net]
Sent: 24 August 2004 21:50
To: Security Basics
Subject: Re: unable to join domain from dmz
***********************
Your mail has been scanned by EdgeDefence(TM).
***********************
You can do this by adding an entry in LMHOSTS also, you can google
for instructions - simpler than setting up WINS.
> You need to setup a WINS server. Otherwise you cannot cross
subnets.
>
> On Mon, 23 Aug 2004 12:12:52 +0300, Bilal Dar <bdar@pbad.sbg.com.sa>
wrote:
> > I am having a problem, i couldn't figure out the reason till now.
We
are
> > having our NT 4 Primary Domain Controller on the inside network,
now
i
am
> > installing another server in the DMZ as a Backup Domain
Controller.
When
i
> > try to join the domain during installation i get an error stating
"The
> > domain controller for the domain cannot be located"
> >
> > Dmz = 172.17.0.0/16
> > Inside = 172.16.0.0/16
> >
> > PDC = 172.16.4.2
> > NewServer = 172.17.0.10/16
> >
> > conduit permit icmp any any
> > conduit permit ip host 172.17.0.10 172.16.0.0 255.255.0.0
> > conduit permit ip host 172.17.0.10 172.17.0.0 255.255.0.0
> > conduit permit tcp host 172.17.0.10 eq smtp any
> > conduit permit tcp host 172.17.0.10 eq pop3 any
> > conduit permit tcp host 172.17.0.10 eq domain any
> > conduit permit udp host 172.17.0.10 eq domain any
> > conduit permit ip host 172.17.4.2 host 172.17.0.10
> >
> > I can ping NewServer from Inside network. Am i missing something?
> >
> > Thanks
> >
> >
>
>
> --
> END OF LINE
> -MCP
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