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SOA Records

SOA (Start of Authority) records are used to determine how a DNS zone propagates to secondary name servers. An SOA record is created by default for each domain added into the Constellix DNS system. However, it is possible to create a custom SOA record with differing values if required.

1. Select your Domain

A. Select Managed DNS
B. Select Domains from the dropdown

C. Select the domain you want to add a custom SOA record too.

2. Select Modify SOA Record

Click Advanced Settings and then select Modify SOA record from the dropdown.

3. Enter Record Value

A. Computer: The FQDN of a primary name server for this zone.
BEmail: A domain-name (FQDN) that specifies the mailbox of the person responsible for this zone.
C. TTL: The number of seconds that this SOA record will be cached in other resolving name servers. Recommend value – 86400 (24 Hours)
D. Serial: The starting serial number for the version of the zone. If the SOA record is applied to a domain that is already created (and thus already has a starting serial number), the existing serial number will be incremented by one.
E. Refresh Time: The time interval (in seconds) before the zone should be refreshed. Recommended value – 86400 (24 Hours)

F. Retry Time: The time interval (in seconds) before a failed refresh should be retried. Recommended value – 7200 (2 Hours)
G. Expiry Time: The time internal (in seconds) that specifies the upper limit on the time internally that can elapse before the zone is no longer authoritative. This is when the secondary name servers will expire if they are unable to refresh. Recommended value – up to 2419200 (672 Hours)
H. Negative Cache: The amount of time a record not found is cached. Recommended values can vary, between 180 and 172800 (3 min - 2 days)
I. Save: Save your record changes and don’t forget to Commit Your Changes after you’re done making record changes for this domain!

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