[Dnsmasq-discuss] Suggestion to increase default for max-tcp-connections

[reiner otto]

Scenario:
dnsmasq running on openwrt box, to provide dhcp/dns for local network, Win 10/11 client machine, Chrome browser.
Issue:
child processes for TCP requests: in use 0, highest since last SIGUSR1 24, max allowed 30. #from dnsmasq.log on openwrt-box

Reason: Some recent change of Chrome, now to use built-in dns-client instead of OS-provided client. (This change rather tricky to be disabled.) In case, Chrome decides, that entropy of host system regarding outgoing udp-port for dns query is not good enough,
Chrome switches to DNS via TCP.
Which might cause bursts of DNS-requests, being throttled by actual default max-tcp-connections=20.
Probably, this behaviour was introduced to make dns poisoning more difficult. 

Regards,

Reiner