Two Pi-Holes, One EdgeRouter 10X

[deHakkelaar]

@RonV42

Yes it depends on the configuration of the client

I have a mixture of Linux, M$, Android, iOS clients and two Pi-hole DNS servers:

pi@ph5a:~ $ nc localhost 4711 <<< $'>stats >quit'
[..]
dns_queries_today 13641

pi@ph5b:~ $ nc localhost 4711 <<< $'>stats >quit'
[..]
dns_queries_today 3306

Thats roughly 80% resolved through the "primary" and 20% by the "secondary".
I did not configure anything related to DNS forwarding order on the clients.

@RonV42

As for Windows this is a little more complex but if you define them per adapter bind the bind priority determines the resolver that will be used and it's "usually" sequential to the network config.

This is a reoccurring topic:

Limit access to your Pi-hole with iptables on Ubuntu/Linux

I presume your talking bout Windows ? If it were that simple: The DNS Client service keeps track of which servers answer name queries more quickly, and it moves servers up or down on the list based on how quickly they reply to name queries. https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd197552(v=ws.10)?redirectedfrom=MSDN#part-2-querying-a-dns-server And this bit:

@Peterkal2112, have you searched Discourse here for what your looking?
Much has been discussed already and some bits are harder to implement as others.
Like syncing the long term dbase pihole-FTL.db live or scheduled which to my knowledge (???) is still not possible because of dbase tables getting locked all the time by the pihole-FTL daemon preventing any sync attempts to write.

pi@ph5a:~ $ ls -1 /etc/pihole/*.db
/etc/pihole/gravity.db
/etc/pihole/macvendor.db
/etc/pihole/pihole-FTL.db