 | | | DNS Q: 'host fqdn ' works, 'ping ip ' works, 'ping fqdn ' does NOT! | DNS Q: 'host fqdn ' works, 'ping ip ' works, 'ping fqdn ' does NOT! 2003-05-06 - By Frank Vreugdenhil
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>From the strace I can see that ping is sending using udp ..
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
connect(4, {sin_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("10.0.1.1")}}, 28) = 0
send(4, "sE\1\0\0\1\0\0\0\0\0\0\3www\6google\3com\0\0\1\0\1", 32, 0) = 32
But if I look at the strace of the host or dig command, I cant see it
creating a socket, but it is not trying to do a connect at all. Yet it still
gets the result.
I am not sure what the host command is doing different to ping when
resolving the name.
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