static IP configured on host and entry in Unbound DNS

[zyghom]

hi,

I have many hosts (actually probably all) that are either VMs or CTs on Proxmox.
When I set manually IP address for them, they are not being resolved by nslookup or so.
It is not the case when I either:
1- assign their IP by DHCP (dnsmasq on Opnsense) in Proxmox or
2- add them to hosts (static) on dnsmasq on Opnsense

So imagine VM with hostname signal, its IP is set on Proxmox as 192.168.10.3/24, DNS search on Proxmox is "localdomain"
Opnsense general settings domain: "localdomain"
When container starts it is not being registered by either Unbound or Dnsmasq (it does not ask for IP, right?)
I can ping it using IP but cannot ping as signal or signal.localdomain

No issue if I set DHCP on Proxmox for this container or if I set it as static host on Dnsmasq

What am I doing wrong?
Where is the problem?

thank you

[Patrick M. Hausen]

You are not doing anything wrong. Add a host override entry to Unbound. If the container/VM/whatever does not get its IP address from DHCP, OPNsense simply does not know about it.

[meyergru]

Be careful with "new" Unbound host overrides, though: https://github.com/opnsense/core/issues/9587

[zyghom]

thank you
but
do I need to specify every host in overrides?
on top of localdomain, I have also some hosts, that I call with domain: "myhome" (i.e. books.myhome, movies.myhome)
I have an override:

all from *.myhome -> nginix.localdomain

and on that nginix proxy I have proper redirects i.e. books.myhome -> http://192.168.10.31:8081
etc

but now you say I shall put as many lines in overrides as many hosts with static IP set by host?
that will be double work, right?
If I get it correctly, then it might be easier to set static IPs on the opnsense instead...
please guide me

and thank you both for the answer ;-)

[zyghom]

If the container/VM/whatever does not get its IP address from DHCP, OPNsense simply does not know about it.

that was actually my thinking as well - how the heck would DNS know what my name/domain is, if I never asked network for IP... ;)

[nero355]

do I need to specify every host in overrides?
on top of localdomain, I have also some hosts, that I call with domain: "myhome" (i.e. books.myhome, movies.myhome)
I have an override:

all from *.myhome -> nginix.localdomain

and on that nginix proxy I have proper redirects i.e. books.myhome -> http://192.168.10.31:8081
etc

but now you say I shall put as many lines in overrides as many hosts with static IP set by host?
that will be double work, right?
If I get it correctly, then it might be easier to set static IPs on the opnsense instead...

I think you figured it our yourself already :)

And IMHO there is nothing wrong with such a setup : I do something similar for all the hosts/clients on my network so I can reach them by both IP address and domain address.

If the container/VM/whatever does not get its IP address from DHCP, OPNsense simply does not know about it.

that was actually my thinking as well - how the heck would DNS know what my name/domain is, if I never asked network for IP... ;)

In case you are using Pi-Hole and know how to script/dev stuff you could build something based on the data shown @ https://<ip_address>/admin/network where basically each Client of your DNS Server (FTLDNS) is shown with both it's MAC and IP address and when the first and last activitiy of that Client was ;)

[Patrick M. Hausen]

but now you say I shall put as many lines in overrides as many hosts with static IP set by host?
that will be double work, right?

Then use DHCP with reservations/static assignments ...