Re: DNS

From: Michael Erskine (osiris@deltaville.net)
Date: 12/21/01


From: osiris@deltaville.net (Michael Erskine)
Date: 20 Dec 2001 16:05:45 -0800


"Michael (Cegonha)" <michael@cegonhatech.com> wrote in message news:<3C1F57FD.7070306@cegonhatech.com>...
> Hi !
>
> I would like to put a DNS server behind iptables, someone how know how
> to do that ?
>
> Extern : (dns1) 205.236.4.2
> (dns2) 205.236.4.3
>
> Redirect to my dns server 192.168.0.1
>
> Whic port i need to open ?

You need port 53 UDP open. You need to look at using the bind 9+ DNS
server.
You *are* running IPv6 over IPv4 on that name server, right? If you
aren't, consider it strongly.

I agree with Tim, "wake me when you can document it causes a
problem..."

You will have some problems with your internal users if you put other
services behind NAT/Masquerade. They won't be able to find the
services unless they are either hard coded (which is tough to do with
virtual web sites). There is a nice little tool you can run inside
your network to let your local users access internal services *as if*
they were outside your network. You can find it here
http://thekelleys.org.uk/dnsmasq/doc.html

-m-

>
> Thanks
>
> Michael



Relevant Pages

  • RE: IPS comparison
    ... >It might if your DNS server doesn't normally do this. ... and anomaly detection. ... analysis tool for network traffic, netflow, firewall logs, host logs, .etc, ... but anomaly detection is just that -- anomalies. ...
    (Focus-IDS)
  • RE: DC Issues
    ... DCs are imputable to DNS server problems. ... For your replication, you should be aware that you will be needing two ... maintain the DCs connected in this network updated. ... Server is not responding or is not considered suitable. ...
    (microsoft.public.windows.server.active_directory)
  • Re: How is DNS resolution working?
    ... >> and our DNS server on machine B is only on a private network, ... host on the external network ... It just happens that on the external network, there is a Windows domain ...
    (microsoft.public.win2000.networking)
  • Re: Event errors
    ... need of a serious professional overhaul of your network, ... Event Source: NETLOGON ... authoritative DNS server required to process this update request has ...
    (microsoft.public.windowsxp.network_web)
  • Re: How is DNS resolution working?
    ... >> and our DNS server on machine B is only on a private network, ... host on the external network ... It just happens that on the external network, there is a Windows domain ...
    (microsoft.public.win2000.dns)