ClearFqdnCache clears the cache of fqdn to zone mappings.

CondOption Conditional challenge option.

FindPrimaryNsByFqdn determines the primary nameserver of the zone apex for the given fqdn by recursing up the domain labels until the nameserver returns a SOA record in the answer section.

FindPrimaryNsByFqdnCustom determines the primary nameserver of the zone apex for the given fqdn by recursing up the domain labels until the nameserver returns a SOA record in the answer section.

FindZoneByFqdn determines the zone apex for the given fqdn by recursing up the domain labels until the nameserver returns a SOA record in the answer section.

FindZoneByFqdnCustom determines the zone apex for the given fqdn by recursing up the domain labels until the nameserver returns a SOA record in the answer section.

GetRecord returns a DNS record which will fulfill the `dns-01` challenge.

NewDNSProviderManual returns a DNSProviderManual instance.

ToFqdn converts the name into a fqdn appending a trailing dot.

UnFqdn converts the fqdn into a name removing the trailing dot.

WrapPreCheck Allow to define checks before notifying ACME that the DNS challenge is ready.

DefaultPollingInterval default polling interval.

DefaultPropagationTimeout default propagation timeout.

DefaultTTL default TTL.

Challenge implements the dns-01 challenge.

DNSProviderManual is an implementation of the ChallengeProvider interface.

PreCheckFunc checks DNS propagation before notifying ACME that the DNS challenge is ready.

WrapPreCheckFunc wraps a PreCheckFunc in order to do extra operations before or after the main check, put it in a loop, etc.