Define hostnames to IP Address [Solved]

[pankaj]

Hi,

If I've a Synology NAS on home network called "NAS", is there any configuration within OPNSense that allows http://NAS to resolve to the specified IP address?

The home LAN is configured to use OPNSense for DNS service.
Thanks,

[Morta]

You can use dnsmasq instead of unbound dns then add the ip and hostanme as shortname to /etc/hosts.

[chemlud]

You can use dnsmasq instead of unbound dns then add the ip and hostanme as shortname to /etc/hosts.

The same can be done in unbound on "Overrides"...

[Morta]

You can use dnsmasq instead of unbound dns then add the ip and hostanme as shortname to /etc/hosts.

The same can be done in unbound on "Overrides"...

Are they only affected after a reboot? Entries seems not work?!

[pankaj]

So I tried using Unbound override option(see screenshot).

- The command "ping NAS" returns positively
- But trying "ping NAS" gets an error "ping: NAS2: Temporary failure in name resolution"

Did I not use override options correctly?

[Patrick M. Hausen]

The "domain" field content is obviously broken. Should match your OPNsense domain.

[pankaj]

Yes domain name was broken due to shoddy copy & paste. I fixed it but the result is still the same.

One question, the "host" field at the very start. What value gets specified here - the hostname as it currently registers with DHCP lease or the one that I want to be associated with this IP address? I've tried both options but neither works!

[pankaj]

I got it to work and had to make two tweaks:

1. Leave the host name at the top of the screen blank
2. While testing I had to ping using NAS2.OPNSense.localdomain

And it worked 

[Patrick M. Hausen]

If you send the opnsense.localdomain as the search domain to your clients via DHCP, then `ping nas2` should also work.

[pankaj]

@pmhausen
@Morta
@chemlud

Thanks for your inputs and pointing me in the right direction