How to find IP address from hostname?

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Hello, I would like to find the IP address' from a list of hostnames. This is how I have approached this, is there a better way without using a system call to nslookup?

if ($machine_name) {
    my @ip = `nslookup $machine_name`;
    my $ip = $ip[4];
    $ip = (split /: /, $ip, 2)[1];
    print "$machine_name:$ip<br>\n";
  }
[download]

Thank you,

Comment on How to find IP address from hostname? Download Code

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Re: How to find IP address from hostname? by busunsl (Vicar) on Mar 21, 2001 at 21:50 UTC
Use `gethostbyname` see `perldoc -f gethostbyname`	[reply] [d/l] [select]
Re: How to find IP address from hostname? by kschwab (Vicar) on Mar 21, 2001 at 22:33 UTC
perldoc -f gethostbyname is a little confusing, since it gloms together docs for several functions. It does, however, point you towards the Socket module (perldoc Socket). The Socket module buys you the handy inet_ntoa() function, as well as other helpful functions and constants. Maybe this snippet will help a bit: `use Socket; $ip = gethostbyname("www.cnn.com"); $string = inet_ntoa($ip); print $string . "\n";` [download]	[reply] [d/l]
Re: How to find IP address from hostname? by tomhukins (Curate) on Mar 21, 2001 at 21:58 UTC
See the Look up a host's addresses section of the documentation for Net::DNS.	[reply]