dns

Documentation

Index

• type Resolver
  • func NewResolver(config models.ConfigDNS) *Resolver
  • func (r *Resolver) GetIP(ctx context.Context, host string) (ip net.IP, err error)
  • func (r *Resolver) GetReverse(ctx context.Context, ip net.IP) (host string, err error)

Types

type Resolver

type Resolver struct {
	// contains filtered or unexported fields
}

Resolver is a wrapper around a net.Resolver that caches lookups, and can be configured to use custom resolvers.

func NewResolver

func NewResolver(config models.ConfigDNS) *Resolver

NewResolver creates a new resolver, potentially using a custom resolver, if the config has been set. Lookups are cached.

func (*Resolver) GetIP

func (r *Resolver) GetIP(ctx context.Context, host string) (ip net.IP, err error)

GetIP does a dns lookup of a hostname, caching if successful.

func (*Resolver) GetReverse

func (r *Resolver) GetReverse(ctx context.Context, ip net.IP) (host string, err error)

GetReverse does a reverse dns lookup of an IP address, caching if successful.