Zone Transfer Soa
The SOA record is transferred first.
Zone transfer soa. If we take a look of the fields of the SOA record. Minutes to a maximum of 60 minutes between checks. In order for the zone files to remain current on all servers a zone transfer must be performed regularly.
It must include the SOA record which indicates the start of authority. The serial number tells the secondary server if its version needs to be updated. Name of master nameserver.
The SOA record is transferred first. Instead of shouldering the load for all requests the requests are distributed among different devices. An AXFR or IXFR query can initiate the zone transfer.
Learn more about various DNS records. The same hold back algorithm is also applied if the zone transfer fails due to problems on the master ie. A standard full zone transfer transfers all the records in the zone from the primary to the secondary server.
An AXFR query initiates a full zone transfer and is usually requested the very first time a zone is transferred. The information starts with the SOA record. To prevent the slaves notifying the other slaves and the master when they get an updated zone file.
7302019 The SOA record is especially important in the case of server clusters. Learn about the AXFR protocol. The Secondary DNS Server will then check the Serial Number value in the response for any change.
