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

Hi all,

I am trying www-Authentication on IIS sever.I am always getting 401 error (Access denied) inspite of valid username and password.

Error message details: 

Error: 401 Access Denied
HTTP/1.1 401 (Unauthorized) Access Denied
Date: Sun, 19 Jan 2003 17:11:12 GMT
Server: Microsoft-IIS/5.0
WWW-Authenticate: Negotiate
WWW-Authenticate: NTLM
Content-Length: 24
Content-Type: text/html
Client-Date: Sun, 19 Jan 2003 17:11:10 GMT
Client-Peer: MYIP:80
Client-Warning: Unsupported authentication scheme 'ntlm'

[download]
My Code: 
my $ua = new LWP::UserAgent;
my $req = new HTTP::Request 'GET', 'http://mydomain.com/';
     $req->authorization_basic('uname', 'password');
my $resp = $ua->request($req);
 if ($resp->is_success) {
      print $resp->content;
  } else {
         print "Error: " . $resp->status_line . "\n";
         print $resp->as_string;
  }

[download]
Looking for help!

Thanks & Regards,
Raj

Replies are listed 'Best First'.
Re: NTLM problems:"Unsupported authentication scheme ntlm"
by dr_jgbn (Beadle) on Jan 19, 2003 at 18:20 UTC
    This might be too simple of a suggestion but first try using the LWP::Auth::NTLM module from CPAN.
    I will continue to look around
    Dr.J
[reply]
Re: NTLM problems:"Unsupported authentication scheme ntlm"
by iguanodon (Priest) on Jan 19, 2003 at 20:05 UTC
    I think the suggestion from dr_jgbn is on the right track. IIS can either use basic authentication or NTLM authentication. It's been a while, but IIRC this is called 'Microsoft Challenge/Response' or something similar in the IIS admin GUI.

    If you have access to administer the server, you could also change it to use basic authentication and I think your existing code would work.

[reply]
      I tried the way suggested by dr_jgbn yet i face the same problem any suggestion to overcome the same.
      Thanks ,
      Raj.
[reply]
        Sorry, but no. I tried it against an IIS server at work, and I just couldn't authenticate with LWP.

        I set up a directory in IIS to be controlled with NTLM authentication, and I can authenticate with no problem using IE. AFAIK I've followed the instructions for using LWP::Authen::Ntlm to the letter (including verifying that the supporting modules are installed): 

        use LWP::Debug qw(+);
use LWP::UserAgent;
use HTTP::Request::Common qw(GET POST);

my $ua = new LWP::UserAgent(keep_alive=>1);
$ua->credentials('myserver.mycompany.com:80', '', "mydomain\\user", 'p
+assword');
$req = GET 'http://myserver.mycompany.com/ntlm_auth/';
$resp = $ua->request($req);
if ($resp->is_success) 
{
    print $resp->content;
} 
else 
{
    print "Error: " . $resp->status_line . "\n";
    print $resp->as_string;
}

        [download]
        But I still get the same response as you. Note that using use LWP::Debug qw(+); doesn't provide any helpful information.

        Sorry I can't be of more help. I'd appreciate hearing from any Monks who have gotten this to work.

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