Bind DNS servers: can they coexist with httpd and mail servers?

[John Miller]

In some cases, running BIND on a web server is exactly what you'd want
to be doing anyway for its caching function.  If you're doing reverse
lookups of IPs or something like that for your Apache logs (I'd
recommend against that, BTW), then you'll save yourself a whole lot of
DNS traffic by running a caching nameserver on the same machine as
Apache.

For a mail server, this is an even better idea: mail servers almost
always do reverse lookups on IP addresses to see if the PTR record
matches what the sender provides in their EHLO.  If you have 20k
e-mails coming from Gmail, for example, no sense in doing the DNS
lookup 20k times.

Of course, you don't have to use BIND to get the benefits of a caching
NS, but if you need to run BIND anyway....

John

On Wed, Jul 19, 2017 at 6:37 AM, Tom Browder <tom.browder at gmail.com> wrote:
> I want to host my own DNS servers, but I need the master to share Bind with
> other services, specifically Apache 2.4, Postfix 3.3, and Mailman 3.
>
> Is there any reason that is not possible?
>
> If not, are there any problems or configuration issues I will need to
> address?
>
> Thanks.
>
> With warmest regards,
>
> -Tom
>
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-- 
John Miller
Systems Engineer
Brandeis University
johnmill at brandeis.edu
(781) 736-4619