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February 2003
slideset 1 -27
Resource Record: SOA
Timing parameter
Master server
Contact address
Version number
net. 3600 IN SOA  A.GTLD-SERVERS.net. nstld.verisign-grs.com. (
2002021301 ; serial
30M ; refresh
15M ; retry
1W ; expiry
1D ) ; neg. answ. ttl