adnstest default
:1 1/yrndrobwlxxxxxxxxxxlllantysiliogogllanfairpwllgwyngyllgogerychw.relativity.greenend.org.uk.
 start 951955250.786132
 socket domain=PF_INET type=SOCK_DGRAM
 socket=4
 +0.000123
 fcntl fd=4 cmd=F_GETFL
 fcntl=~O_NONBLOCK&...
 +0.000055
 fcntl fd=4 cmd=F_SETFL O_NONBLOCK|...
 fcntl=OK
 +0.000034
 sendto fd=4 addr=172.18.45.6:53
     311f0100 00010000 00000000 3f79726e 64726f62 776c7878 78787878 78787878
     6c6c6c61 6e747973 696c696f 676f676c 6c616e66 61697270 776c6c67 77796e67
     796c6c67 6f676572 79636877 0a72656c 61746976 69747908 67726565 6e656e64
     036f7267 02756b00 00010001.
 sendto=108
 +0.003243
 select max=5 rfds=[4] wfds=[] efds=[] to=1.996757
 select=1 rfds=[4] wfds=[] efds=[]
 +0.000534
 recvfrom fd=4 buflen=512
 recvfrom=OK addr=172.18.45.6:53
     311f8583 00010000 00010000 3f79726e 64726f62 776c7878 78787878 78787878
     6c6c6c61 6e747973 696c696f 676f676c 6c616e66 61697270 776c6c67 77796e67
     796c6c67 6f676572 79636877 0a72656c 61746976 69747908 67726565 6e656e64
     036f7267 02756b00 00010001 0a72656c 61746976 69747908 67726565 6e656e64
     036f7267 02756b00 00060001 00015180 0027036e 7330c06c 0a686f73 746d6173
     746572c0 6c000000 2d00001c 2000000e 1000093a 80000151 80.
 +0.000686
 recvfrom fd=4 buflen=512
 recvfrom=EAGAIN
 +0.000147
 close fd=4
 close=OK
 +0.000151