reverse_pointer {ipaddress}

Reverse DNS pointer

Description

Returns the PTR record used by reverse DNS.

Usage

reverse_pointer(x)

Arguments

x

An ip_address vector

Details

These documents describe reverse DNS lookup in more detail:

• IPv4: RFC-1035 Section 3.5

• IPv6: RFC-3596 Section 2.5

Value

A character vector

Examples

reverse_pointer(ip_address("127.0.0.1"))

reverse_pointer(ip_address("2001:db8::1"))