Hi all, is it possible to add a secondary DNS Server to the DHCP configuration of PiHole as fallback? Scenario: If Pi-Hole is not reachable, the clients in the network should fallback to the router's DNS server.

Here's an answer (if you're still looking): sudo nano /etc/dnsmasq.d/02-pihole-dhcp.conf dhcp-option=6,Pi-holeIP,SecondaryDNSIP sudo service pihole-FTL restart You would have to renew release on each host after that to pull the new settings. Consider running tests with namebench with various co…

I wish you the best of luck then.

[image] Koriakinides: But for some reason your one doesnt have such basic option in simple way to be set. This reason is that many users don't have a second Pi-hole. If we'd show them a box to enter another DNS server, most wouldn't know how to handle it. It is likely that such a feature woul…

Would it be so painfull to put that in not as just another DNS box but an "expert" option with some simple description and HUGE RED WARNING?!?! Why do I have to take such a stupid detour to utilize option which is so basic, to get all juice out of this really great piece of code? Anyway thx for bein…

Your solution provided is perfectly simple enough and has enabled me to have a secondary DNS server assigned via DHCP. Your description of why this is not a UI driven option is perfectly in line with the idea of pi-hole. pi-hole is primarily a DNS server that has some DHCP services attached, it is …

thankyou, was a bit confused as my modem asked for a secondry dns - didn't put it in (after reading this) and it filled it in for me (assuming it is a blank fill in) everything works very well - thanks again - so far blocking all ads :smiley: update - found an ad so i put the same dns in for the pri…

As it's quite crucial: you mean '"secondary" DNS servers', right?

I think this thread got confused - the accepted solution answers the question I was looking to solve and the one the OP was actually asking I think. I followed the accepted solution with a minor tweak.. dnsmasq will interpret 0.0.0.0 to mean "the address that dnsmasq is running on" (i.e. the address…

[image] davison: why is this not the default? By distributing a secondary DNS server (that is not also running Pi-hole) to your client via DHCP, the choice of a DNS server happens at your client's discretion. It is perfectly valid and to be expected that clients will bypass Pi-hole in such a…

Understood, and thanks for the link too. I'd thought originally that pi-hole was sending the 8.8.8.8 as a second resolver address in the DHCP response, but after testing further, it isn't, the client was setting it itself because only one was received from the pi-hole. This makes more sense now.

This is a great discussion! I have a two pi-hole setup, each pi-hole configured with reserved/static addresses for my know devices, each serving dhcp (on non overlapping ranges), and each serving 8.8.8.8/8.8.4.4 as the upstream dns. Router has dhcp disabled. If one pihole goes down, I believe tha…

Pi-hole Userspace

Secondary DNS Server for DHCP

Help

show post in topic

Home
Categories
Guidelines
Terms of Service
Privacy Policy

Powered by Discourse, best viewed with JavaScript enabled