START OF AUTHORITY
\stˈɑːt ɒv ɐθˈɒɹɪtˌi], \stˈɑːt ɒv ɐθˈɒɹɪtˌi], \s_t_ˈɑː_t ɒ_v ɐ_θ_ˈɒ_ɹ_ɪ_t_ˌi]\
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(SOA) A type of resource record used by theDomain Name System (DNS) to give meta-data about a set ofdomain name data (the contents of a "zone file"). An SOArecord has the following parameters:Serial: the zone serial number - a version number for the zonefile.Refresh: the number of seconds between update requests fromsecondary and slave name servers.Retry: the number of seconds the secondary or slave will waitbefore retrying when an attempt fails.Expire: (time to live - TTL) the number of seconds a master orslave will wait before considering cached data out-of-date.Minimum: previously used to determine the minimum TTL, thisoffers negative caching.
By Denis Howe
Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.
Nearby Words
- starshoot
- starstone
- start
- start bit
- start codon
- start of authority
- start of header
- start of text
- start out
- start up
- start-off