Another approach, to do the hard job will be
use Data::Validate::IP qw(is_ipv4);
which has also a nice way to validate a domain
use Data::Validate::Domain qw(is_domain);
and email
use Data::Validate::Email qw(is_email);

In reply to Re: Checking for a valid IP number by rustic
in thread Checking for a valid IP number by kiz

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