this post was submitted on 23 Jul 2023
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6
Proxmox OPN sense DNS issues (self.selfhosted)
submitted 1 year ago by wiggles to c/[email protected]
6 comments fedilink hide all child comments
 

I currently have OPNsense setup inside a proxmox server, and I am having trouble connecting to the internet. It seems like it could be related to DNS. When I ping www.google.com from my lan client (a fedora machine), I get “name or service not known”. When I ping 8.8.8.8 it is successful.

If I use OPNsense diagnostic interface and try to ping www.google.com it is also successful.

I’m not sure what’s going on here. I’m somewhat new to this.

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[–] [email protected] 1 points 1 year ago (2 children)

What are you getting for your dns server from dhcp?

[–] wiggles 1 points 1 year ago (1 children)

Grep "nameserver” /etc/resolve.conf , shows 127.0.0.53

[–] [email protected] 1 points 1 year ago

In the settings for the DHCP on your local network what do you have set for your DNS Server? If that setting is empty try filling it with 1.1.1.1 (or whatever DNS server you want).

[–] [email protected] 1 points 1 year ago (1 children)

I recommend getting a PCIE Nic and passing it through to the VM. But you can check to make sure the firewall built into Proxmox is disabled, might be the issue.

[–] wiggles 1 points 1 year ago

Yeah, that's what i have. I setup the two ports on the card for wan/lan and passed them to the VM. I could try disabling the firewall in proxmox.

[–] [email protected] 1 points 1 year ago

Make sure the client is getting a DHCP address from opnsense, and not somewhere else.