OPNsense Forum

English Forums => Intrusion Detection and Prevention => Topic started by: jstarta on May 24, 2025, 01:11:35 PM

Title: External DNS stops working
Post by: jstarta on May 24, 2025, 01:11:35 PM
Hi all,

I've been looking into my Intrusion Detection settings again and was trying to see if I could run it on the WAN interface. When I enable it on the WAN interface my external DNS lookups stop working completely. I just get a SERVFAIL when doing an nslookup.

I'm using Unbound and 1.1.1.1 and 1.0.0.1. If I ping something like 8.8.8.8 it works fine. I'm not seeing any alerts, so i'm not sure what the problem is here.

Cheers
Title: Re: External DNS stops working
Post by: someone on May 27, 2025, 12:19:06 AM
Where are you putting the 1.1.1.1, it should be in system settings
Title: Re: External DNS stops working
Post by: someone on May 27, 2025, 12:21:14 AM
Also did you uncheck the box to allow your DNS preference to be overidden by your service provider