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NTLM authentication via VPN tunnel
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Vaughn Pennington  
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 More options Jun 15 2000, 3:00 am
Newsgroups: fa.firewall
From: "Vaughn Pennington" <VXPen...@wthg.com>
Date: 2000/06/15
Subject: NTLM authentication via VPN tunnel
Can anybody tell me if NTLM authentication will work via a VPN connection?   Thanks.

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Aaron C. Springer  
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 More options Jun 15 2000, 3:00 am
Newsgroups: fa.firewall
From: "Aaron C. Springer" <a.con...@gte.net>
Date: 2000/06/15
Subject: RE: NTLM authentication via VPN tunnel
mmm yes, why wouldn't it?

acs

On 15-Jun-00 Vaughn Pennington wrote:

> Can anybody tell me if NTLM authentication will work via a VPN connection?  
> Thanks.

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Kostas Evangelinos  
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 More options Jun 16 2000, 3:00 am
Newsgroups: fa.firewall
From: Kostas Evangelinos <k...@bastard.net>
Date: 2000/06/16
Subject: Re: NTLM authentication via VPN tunnel
It might not work because NTLM is not proxyable. Basically it is a
challenge-response protocol which uses the client IP when hashing
the server provided nonce.

In short, if you proxy or if you use NAT you lose.

Later,
Kos

On Thu, Jun 15, 2000 at 03:00:38PM -0700, Aaron C. Springer wrote:

| mmm yes, why wouldn't it?
|
|
| acs
|
| On 15-Jun-00 Vaughn Pennington wrote:
| > Can anybody tell me if NTLM authentication will work via a VPN connection?  
| > Thanks.
| >
| >
| > -
| > [To unsubscribe, send mail to majord...@lists.gnac.net with
| > "unsubscribe firewalls" in the body of the message.]
|
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| Aaron C. Springer
| a.con...@ix.netcom.com
| pgp key published
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Aaron C. Springer  
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 More options Jun 16 2000, 3:00 am
Newsgroups: fa.firewall
From: "Aaron C. Springer" <a.con...@gte.net>
Date: 2000/06/16
Subject: Re: NTLM authentication via VPN tunnel
Right, but proxy and NAT have nothing to do with tunnels.. If you have a tunnel
up you are a node on the remote net.. (more or less, depending on config
details).. but the question was VPN right? Put proxies and NAT in with tunnels
and yes it gets more complex..

acs

On 16-Jun-00 Kostas Evangelinos wrote:

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Bernard Andrews  
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 More options Jun 20 2000, 3:00 am
Newsgroups: fa.firewall
From: "Bernard Andrews" <MyRealAddress=bern...@technologist.com>
Date: 2000/06/20
Subject: Re: NTLM authentication via VPN tunnel
NTLM is proxyable because we do it through internal proxy based firewalls
(Gauntlet).

Regards
Bernard Andrews

"Kostas Evangelinos" <k...@bastard.net> wrote in message

news:fa.g4gcemv.1lka698@ifi.uio.no...


 
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