[knot-resolver-users] Re: DoH connection closed after 10 seconds

Hello, yes, the fact is that no RFC defines idle/keepalive timeout of TCP connection. We can just guess the optimal value accroding to clients reactions and server resources. At AS50242 we ended up with net.tcp_in_idle=120s Just a few ideas: What about implementing different tcp_in_idle parameter for empty and non-empty sessions? What about implementing server-side TCP keepalive messages? What about returning "Connection: keep-alive" header as Cloudflare does? (I don't know for what, just to be sure :) ) Blažej