adnstest default
:12,65548 37.45.18.172.in-addr.arpa.test.iwj.relativity.greenend.org.uk.
 start 951960654.608219
 socket type=SOCK_DGRAM
 socket=4
 +0.000194
 fcntl fd=4 cmd=F_GETFL
 fcntl=~O_NONBLOCK&...
 +0.000055
 fcntl fd=4 cmd=F_SETFL O_NONBLOCK|...
 fcntl=OK
 +0.000035
 sendto fd=4 addr=172.18.45.6:53
     311f0100 00010000 00000000 02333702 34350231 38033137 3207696e 2d616464
     72046172 70610474 65737403 69776a0a 72656c61 74697669 74790867 7265656e
     656e6403 6f726702 756b0000 0c0001.
 sendto=79
 +0.001355
 sendto fd=4 addr=172.18.45.6:53
     31200100 00010000 00000000 02333702 34350231 38033137 3207696e 2d616464
     72046172 70610474 65737403 69776a0a 72656c61 74697669 74790867 7265656e
     656e6403 6f726702 756b0000 0c0001.
 sendto=79
 +0.000776
 select max=5 rfds=[4] wfds=[] efds=[] to=1.997869
 select=1 rfds=[4] wfds=[] efds=[]
 +0.000258
 recvfrom fd=4 buflen=512 *addrlen=16
 recvfrom=OK addr=172.18.45.6:53
     311f8580 00010001 00010001 02333702 34350231 38033137 3207696e 2d616464
     72046172 70610474 65737403 69776a0a 72656c61 74697669 74790867 7265656e
     656e6403 6f726702 756b0000 0c0001c0 0c000c00 01000000 3c002903 70747204
     74657374 0369776a 0a72656c 61746976 69747908 67726565 6e656e64 036f7267
     02756b00 c05f0002 00010000 003c0006 036e7330 c068c090 00010001 00015180
     0004ac12 2d06.
 +0.000613
 recvfrom fd=4 buflen=512 *addrlen=16
 recvfrom=OK addr=172.18.45.6:53
     31208580 00010001 00010001 02333702 34350231 38033137 3207696e 2d616464
     72046172 70610474 65737403 69776a0a 72656c61 74697669 74790867 7265656e
     656e6403 6f726702 756b0000 0c0001c0 0c000c00 01000000 3c002903 70747204
     74657374 0369776a 0a72656c 61746976 69747908 67726565 6e656e64 036f7267
     02756b00 c05f0002 00010000 003c0006 036e7330 c068c090 00010001 00015180
     0004ac12 2d06.
 +0.000711
 recvfrom fd=4 buflen=512 *addrlen=16
 recvfrom=EAGAIN
 +0.000133
 close fd=4
 close=OK
 +0.000187