DNS problem

ZaiD Dashti zaiddashti at hotmail.com
Tue Jan 25 11:04:02 PST 2005

i think my ISP blocking port 53, i will call them


>From: cpghost at cordula.ws
>To: ZaiD Dashti <zaiddashti at hotmail.com>
>CC: freebsd-questions at FreeBSD.org
>Subject: Re: DNS problem
>Date: Tue, 25 Jan 2005 18:39:52 +0100
>On Tue, Jan 25, 2005 at 03:45:22PM +0000, ZaiD Dashti wrote:
> > hello
> >
> > i have a problem with my DNS server.
> >
> > first, i have a registered domain name and i want to change its NS 
> > to my server to host it in my home (just for learning about DNS)
>If you have a domain, you must setup at least two different DNS
>servers. Both must be on physically different networks. Are you
>sure that the domain is set up properly? I could dig from here,
>but since you didn't specify the domain...
> > second (the problem), when i use nslookup from another computers in my
> > local network, the dns
> > server works fine, but when external connection (internet connection, 
> > say my friend connection) tryies to use my dns server, i got error 
> > "DNS request timed out", why ? and how to solve it ?
>How long since you redirected the nameserver records from your
>registrar account? It can take up to 72 hours for the changes to
>propagate, depending on the TLD. Some TLD propagate changes much
>faster now, but it can still takes many hours all DNS caches to
>expire old stuff.
> > NOTE: i have an ADSL account, which mean i'm using a router to connect 
> > the internet, and i'm redirection all ports from the external 
> > to my machine ip, so that i'm able to open a server or to connect to my
> > machine from anywhere.
>Running a DNS server from an ADSL link is not recommended.
>Are you sure that your ISP is not blocking port 53 to your
>fixed address? And are you sure that your DNS server is actually
>listening on the public interface at all (if you have a multi-homed
>host) a.k.a does sockstat -46l show something like *:53?
> > thanks
>Cordula's Web. http://www.cordula.ws/

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