Whittled down to the minimum, I have:

use strict;
use warnings;
use LWP::UserAgent;
use HTTP::Request::Common;
use Authen::NTLM;
use LWP::ConsoleLogger::Everywhere;
ntlmv2(1);

my $ua = LWP::UserAgent->new(keep_alive => 1, ssl_opts => { verify_hos
+tname => 0 });

$ua->credentials(internal.com:9004', '', 'user', 'pass');

my $req = GET “https://internal.com:9004/api”;

[download]

I assume because it is an internal site, if I don't turn off verify_hostname, I get:
500 Can't connect to internal.com:9004 (Bad File descriptor)

However, if I turn off verify_hostname, the ConsoleLogger shows that I am attempting to do my NTLM authentication, however I can't seem to get by:
401 Unauthorized

I do notice in the result header a warning:
Client-SSL-Warning: Peer certificate not verified

I'm wondering if my authentication problems are due to not verifying the host. I'd prefer that, but I've tried downloading certificates, extracting a fingerprint, but can't seem to get past the 500 error without turning off verify_hostname. How can I verify my internal site? And/or should I be looking elsewhere for my NTLM Authentication issue?

I'm attempting this from Strawberry on Windows, but I am able to authenticate against my internal site using curl from one of my linux hosts, so I know the url and credentials are correct.

In reply to NTLM Authentication w/ Internal Site by DanEllison

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