DNS - use router?

[Nigel Jones]

Hi,
I currently have my upstream DNS (WAN) set to google ie 8.8.8.8/8.8.4.4
I have my LAN DNS left blank

So clients will use the Asus dns server for DNS, which itself will use google. all cool
However I noticed I was getting quite a few
dnsmasq[314]: Maximum number of concurrent DNS queries reached (max: 150)

The router is only being used at home, but there are quite a number of devices.... (high tech household )

When I see this the wan connection appears to go south for a minute or so - cause or effect I don't know
For now I've switched off DNSSEC (loads?)

It made me wonder what 'best practice' is. I would expect using the local proxy is good to improve latency.

Not done any packet sniffing etc yet.....

I'm on 386.6 - the latest for the AC3200

 

[RMerlin]

You need to figure out what causes as many as 150 concurrent queries to run. That's a lot. Temporarily enable logging in dnsmasq to watch queries being issued.

 

[sbsnb]

These issues may or may not help:

https://github.com/eBayClassifiedsGroup/PanteraS/issues/166
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=736362

 

[Zonkd]

@Nigel Jones Once you discover the cause I'd be interested to hear it.