DDNS with extra vhosts...

[Crist Clark]

This isn’t really a BIND or DNS problem. There is not a standard way to do
this.

If you’re going for some kind of automation or orchestration of these
services, there are a bunch of different places to build this in, depending
on the tools you are using.

You did mention ISC DHCP. One approach would be to use the server-side
hooks when a lease is created  or renewed. You could add a script that
creates what ever additional names you want.

On Sun, Sep 29, 2019 at 10:22 AM John Robson via bind-users <
bind-users at lists.isc.org> wrote:

> Hi all,
>
> I've set up both ISC dhcpd and ISC bind to provide relevant services to a
> virtualised test lab.  In the test lab obviously boxes will be brought up
> and down fairly frequently, and I'm aiming to minimise the amount of effort
> that this takes our users.
>
> So - the machines get an IP address and dhcpd updates bind, so a specific
> internal domain gets updated - let's use example.orghere for ease of
> reading.
>
> That all works (after a little fight with permissions).
> I set up a machine with a hostname of 'foo' and there is an automagic DNS
> entry `foo.example.org`.
>
> BUT - what I'd like to do is have `*.foo.example.org` (or even a specific
> listing of subdomains) point to that IP as well - to enable the various
> vhost based services on the test machines to be accessed without having to
> mess with local hosts files or further mess with DNS each time.
>
> e.g. test.foo.example.org should point to the same IP as foo.example.org (heck,
> could even be a cname)
>
> Is there some simple configuration I am missing - or is this not possible?
> Is there a better way to get to where I want to be*?
>
> Cheers,
>
> John
>
>
> * Previously we had all the test boxes in one /24, so we had `lab123` for
> the box whose IP ended in 123... but we're now in a /23, and that gets a
> lot messier to handle with fixed names (not particularly keen on the idea
> of test341 being for the top half ending in 341-256=85 - nor am I keen on 5
> digit test ids...)
>
> --
>
> *John Robson*
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