Reverse DNS pointer — reverse_pointer • ipaddress

Returns the PTR record used by reverse DNS.

Usage

reverse_pointer(x)

Arguments

x: An ip_address vector

Value

A character vector

Details

These documents describe reverse DNS lookup in more detail:

IPv4: RFC-1035 Section 3.5
IPv6: RFC-3596 Section 2.5

Examples

reverse_pointer(ip_address("127.0.0.1"))
#> [1] "1.0.0.127.in-addr.arpa"

reverse_pointer(ip_address("2001:db8::1"))
#> [1] "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip.arpa"