dns - kamailio proxy server can't find other server -


we running 2 proxy server, need connect server b server.

but server can't find b server because b server sip domain register tcp!

only answer dig _sip._tcp.serveraddress srv, not answer dig _sip._udp.serveraddress.

our dns server admin say, sorry can't support udp.

how fix kamailio source support tcp dns?

the latest version (at time 4.1.2) should try protocols.

you can try play dns proto preference global parameters, giving higher priority tcp, see:

as example:

dns_tcp_pref=50 

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