DNS & Firewall

This is a discussion on DNS & Firewall within the Linux Security forums, part of the System Security and Security Related category; Do I need to open up the nameserver (42) and domain (43) ports on my firewall to let DNS queries ...


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  #1 (permalink)  
Old 04-29-2004
Kevin Cosgrove
 
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Default DNS & Firewall

Do I need to open up the nameserver (42) and domain (43) ports on
my firewall to let DNS queries flow through?

Thanks....

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  #2 (permalink)  
Old 04-30-2004
Baho Utot
 
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Default Re: DNS & Firewall

Kevin Cosgrove wrote:

> Do I need to open up the nameserver (42) and domain (43) ports on
> my firewall to let DNS queries flow through?
>
> Thanks....
>


If you want DNS to work I think I would try port 53.

--
Why should your dreams not be beautiful?
Why should you not believe in your dreams?

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  #3 (permalink)  
Old 04-30-2004
Andrew James Alan Welty
 
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Default Re: DNS & Firewall

On Thu, 29 Apr 2004 17:13:15 +0000, Kevin Cosgrove wrote:

> Do I need to open up the nameserver (42) and domain (43) ports on
> my firewall to let DNS queries flow through?
>
> Thanks....


You just need port 53 open.
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  #4 (permalink)  
Old 05-03-2004
Kevin Cosgrove
 
Posts: n/a
Default Re: DNS & Firewall

Andrew James Alan Welty <andrew@cci-29palms.com> wrote:
> On Thu, 29 Apr 2004 17:13:15 +0000, Kevin Cosgrove wrote:
>
> > Do I need to open up the nameserver (42) and domain (43) ports on
> > my firewall to let DNS queries flow through?
> >
> > Thanks....

>
> You just need port 53 open.


Thanks! All is working now....


--
Unless otherwise noted, the statements herein reflect my personal
opinions and not those of any organization with which I may be affiliated.
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  #5 (permalink)  
Old 05-14-2004
Oskar Lindgren
 
Posts: n/a
Default Re: DNS & Firewall

And only UDP :)

"Kevin Cosgrove" <Kevin@mdhost.cse.tek.com> wrote in message
news:slrnc9cq3t.obo.Kevin@tekicl2b.cse.tek.com...
> Andrew James Alan Welty <andrew@cci-29palms.com> wrote:
> > On Thu, 29 Apr 2004 17:13:15 +0000, Kevin Cosgrove wrote:
> >
> > > Do I need to open up the nameserver (42) and domain (43) ports on
> > > my firewall to let DNS queries flow through?
> > >
> > > Thanks....

> >
> > You just need port 53 open.

>
> Thanks! All is working now....
>
>
> --
> Unless otherwise noted, the statements herein reflect my personal
> opinions and not those of any organization with which I may be affiliated.



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