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| App::Netdisco::Util::DNS(3) | User Contributed Perl Documentation | App::Netdisco::Util::DNS(3) |
NAME
App::Netdisco::Util::DNSDESCRIPTION
A set of helper subroutines to support parts of the Netdisco application.There are no default exports, however the ":all" tag will export all subroutines.
EXPORT_OK
hostname_from_ip( $ip, \%opts? )
Given an IP address (either IPv4 or IPv6), return the canonical hostname.%opts can override the various timeouts available in Net::DNS::Resolver:
- "tcp_timeout": 120 (seconds)
- "udp_timeout": 30 (seconds)
- "retry": 4 (attempts)
- "retrans": 5 (timeout)
Returns "undef" if no PTR record exists for the IP.
ipv4_from_hostname( $name )
Given a host name will return the first IPv4 address.Returns "undef" if no A record exists for the name.
| 2022-06-08 | perl v5.32.1 |
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