The SOA Record
SOA stands for ‘Start Of Authority’.
The SOA record defines the default parameters that affect the entire zone
@ in soa motcig.cig.mot.com. hostmaster.cig.mot.com. (
86400 ) ; minimum TTL
- Origin Server : Name of the host on which the master zone file resides.
- E-mail contact : e-mail address of the administrator. (The @ is changed to a .)
- Refresh Rate : How often a secondary name server contacts a primary name server
- Retry Rate : How often a secondary contacts a primary if a refresh fails.
- Expiration : How long secondaries will consider a zone valid before expiring it.
- Cache Interval(Minimum TTL) : The time slot for this data to be cached= 1 day