Enum trust_dns_proto::rr::domain::usage::UserUsage [−][src]
pub enum UserUsage {
Normal,
Loopback,
LinkLocal,
NxDomain,
}
Expand description
Users:
Are human users expected to recognize these names as special and use them differently? In what way?
Variants
Users are free to use these names as they would any other reverse-mapping names. However, since there is no central authority responsible for use of private addresses, users SHOULD be aware that these names are likely to yield different results on different networks.
Users are free to use localhost names as they would any other domain names. Users may assume that IPv4 and IPv6 address queries for localhost names will always resolve to the respective IP loopback address.
Multi-cast link-local usage
Users are free to use “invalid” names as they would any other domain names. Users MAY assume that queries for “invalid” names will always return NXDOMAIN responses.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for UserUsage
impl UnwindSafe for UserUsage
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