dnsname - does a reverse lookup for the IP address
SYNOPSIS
dnsname a.b.c.d
DESCRIPTION
dnsname
does a reverse lookup for the IP address
a.b.c.d.
It prints the first domain name for that address.
If no domain names are listed in DNS,
dnsname
prints a blank line.
You can list several IP addresses;
dnsname
prints each result on a separate line.
There is also a
dnsfilter(1)
program
that reads IP addresses from its input
and performs many reverse lookups in parallel.
Normally
dnsname
exits 0.
If
dnsname
encounters a temporary problem
that prevents it from determining the domain name,
it prints an error message and exits 111.