What is delegated zone in DNS?
A delegated zone is a zone managed by (delegated to) another name server who owns the authority for the zone. A forward zone is where queries are sent before being forwarded to other remote name servers. A stub zone contains records that identify the authoritative name servers in another zone.
What are the types of DNS zones?
Broadly speaking, there are five types of DNS zones.
- Primary zone.
- Secondary zone.
- Active Directory-integrated zone.
- Stub zone.
- Reverse lookup zone.
What is DNS zone and its types?
A DNS zone is a portion of the DNS namespace that is managed by a specific organization or administrator. A DNS zone is an administrative space which allows for more granular control of DNS components, such as authoritative nameservers. The domain name space is a hierarchical tree, with the DNS root domain at the top.
What is the purpose of Dane?
DANE (DNS-based Authentication of Named Entities) is the option to use secured DNS infrastructure to store generic verifiable information for multi-factor verification.
What is primary and secondary DNS zones?
Primary DNS zone is hosted in the Primary DNS Server. A Secondary DNS Zone is used to reduce the load on Primary DNS Servers and also for preventing single point of failure. The Zone information from the Primary DNS Server is transferred to the Secondary DNS Server via a process known as Zone Transfer.
What is DANE SMTP?
DANE for SMTP (RFC 7672) uses the presence of DNS TLSA resource records to securely signal TLS support and to publish the means by which sending mail servers can successfully authenticate legitimate receiving mail servers. The previously described risks of SMTP with opportunistic TLS can be mitigated by using DANE.
What is the difference between zone and domain?
A “domain” represents the entire set of names / machines that are contained under an organizational domain name. For example, all domain names ending with “.com” are part of the “com” domain. A “zone” is a domain less any sub-domains delegated to other DNS servers (see NS-records).