Hi
Im relatively new to OPNSense - 6-8 months, I had been using OpenWRT prior. Also a first time poster on this forum. I have been searching the forum, google and Youtube for answers
I believe I have a relatively default setup - details after question.
I can resolve my DHCP clients
QuoteC:\Users\rednep>nslookup nas01
Server: router.lan
Address: 192.168.1.2
Name: nas01.lan
Address: 192.168.1.5
I can resolve hosts on the internet
QuoteC:\Users\rednep>nslookup www.google.com
Server: router.lan
Address: 192.168.1.2
Non-authoritative answer:
Name: www.google.com
Addresses: 2404:6800:4006:804::2004
142.251.40.36
but I can not resolve hosts related to my Dynamic DNS
QuoteC:\Users\rednep>nslookup blog.rednep.info
Server: router.lan
Address: 192.168.1.2
Non-authoritative answer:
Name: blog.rednep.info
When I specify a name server it works (being a Dynamic DNS, the IP address is different as I have rebooted OPNSense multiple times).
QuoteC:\Users\rednep>nslookup blog.rednep.info 1.1.1.1
Server: one.one.one.one
Address: 1.1.1.1
Non-authoritative answer:
Name: rednep.info
Address: 100.102.214.141
Aliases: blog.rednep.info blog.rednep.info
In DHCP if I configure 1.1.1.1 as the DNS, then everything works except for my local XXXXX.lan clients
Any help would be greatly appreciated,
Thank You.
OPNSense Config:Version: OPNsense 25.1-amd
System / General / Networking I have tried both DNS Server 1.1.1.1 and uncheck Allow DNS Server List to be Overridded by DHCP/PPP on WAN OR
No DNS listed and check Allow DNS Server ......
ISC DHCPv4 Nothing included for DNS
Unbound - enabled on Port 53
- Network interfaces All (recommended)
- Register ISC DHCP4 Leases CHECKED
- Register DHCP Static Mappings CHECKED
- Flush DNS Cache during reload CHECKED
- Query Forwarding Use System Names Servers CHECKED
Resolved. It wasnt OPNsesnse. I had switched ISP and the new ISP had CGNAT enabled. Calling and disabled this solved the problem