Re: Confused about two development utils

I am a newbie to mp development stack.
After one day of work, I have made a simple handler, which returns the
client's address and its PTR record.
The demo:
https://myhostnames.com/

The code shown below:

package MyHostname;


use strict;

use Net::DNS;

use Apache2::RequestRec ();

use Apache2::RequestIO ();

use Apache2::Connection ();

use APR::Table ();

use Apache2::Const -compile => qw(OK FORBIDDEN);



sub handler {


    my $r = shift;

    my $ip = $r->headers_in->{'CF-Connecting-IP'} ||
$r->connection->client_ip;


    my $host = dns_query($ip) || "";


    $r->content_type('text/plain; charset=utf-8');

    $r->print("Your IP: $ip, Hostname: $host");


    return Apache2::Const::OK;

}



sub dns_query {

    my $ip = shift;

    my $resolver = Net::DNS::Resolver->new();

    my $reply = $resolver->query($ip, 'PTR');


    if ($reply) {

        for my $rr ($reply->answer) {

            return $rr->rdstring;  # we need only one

        }

    }


    return;

}



1;



Can anyone give your review? Thanks in advance.


Matthias




On Tue, Dec 22, 2020 at 1:49 PM Matthias Peng <[email protected]>
wrote:

> Hello
>
> I am developing a simple mp2 application.
> I looked for the installation for mp2 utils, and found this two:
>
> libapache2-mod-perl2
>
> libapache2-mod-apreq2
>
>
> what're their relations? Should I install both, or only the first one?
>
>
> Thanks.
>