DNS forwarder doesn't work after upgraded to Jan 20 snapshot
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I've set a domain on DNS forwarder to a VPN linked DNS server. After the upgrade (Jan 20), I cannot resolve the domain anymore. The VPN link is working though. It seems other functions are working too.
I need to manually revered back to earlier snapshot (Jan 1). But it said the config file is for newer version. I restored my backup and it's working as expected. I assume Jan 20 has a newer config file structure that make my DNS forwarder not working.
-Raylund
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I found the problem. It's the route/gateway of VPN didn't work.
As pfsense cannot accessing the server in the other side of the VPN, I need to create a gateway with the same IP as the LAN interface on LAN interface. And than set a route to the subnet of other side of the VPN via this gateway.
In the new snapshots, the gateway/routing is missing. That's why I cannot resolve the domain which is queried by the server in the other side of the VPN.
-Raylund
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You can apply this fix manually https://rcs.pfsense.org/projects/pfsense/repos/mainline/commits/1801c22373d998409261841cbff03a0a1f7e7077
That should resolve your issue.