dnsname - does a reverse lookup for the IP address
does a reverse lookup for the IP address
It prints the first domain name for that address.
If no domain names are listed in DNS,
prints a blank line.
You can list several IP addresses;
prints each result on a separate line.
There is also a
that reads IP addresses from its input
and performs many reverse lookups in parallel.
encounters a temporary problem
that prevents it from determining the domain name,
it prints an error message and exits 111.