Use log-queries to see what's happening. You should be looking for outgoing queries which don't see an answer.
Cheers, Simon. On 16/01/18 15:34, john doe wrote: > Hi, > > First of all a big thank you for dnsmasq. > It's an easy dhcp, dns, read only tftp server to configure. > > > On a perimeterfirewall the logs gets flutted with the following: > Jan 15 22:32:23 dnsmasq[546]: Maximum number of concurrent DNS queries > reached (max: 150) > Jan 16 00:06:34 dnsmasq[546]: Maximum number of concurrent DNS queries > reached (max: 150) > > Note that only one server (gateway) is connected to the perimeterfirewall. > > How can I determine wherein lies the problem (perimeterfirewall or > gateway)? > > In other words: what should I do to understand what's triggering those > messages. > > Both the gateway and the perimeterfirewall are on Debian 9 using: > dnsmasq, systemd-resolved and resolvconf(8). > > -John
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