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PC-Duo overview

Gateway (see “Firewall-friendly connections” for more information about PC-Duo firewall-

friendly connections).

To guarantee security in the PC-Duo environment, it is critical that PC-Duo components

acting as servers validate the credentials of users of PC-Duo components acting as

clients before they provide access or data. The burden is placed on the client to

authenticate itself to the server. PC-Duo implements two types of authentication to

support this:

 “Identity Authentication”

 “Endpoint Authentication”

Identity Authentication

In general, this operation answers the following security question: How does the server

know who the client is? A PC-Duo application acting as a server will not provide access

or information to any PC-Duo application acting as a client until it can validate that client‟s

identity. PC-Duo provides the server three different methods of authenticating the identity

of the PC-Duo client:

Connection

Windows

authentication

Simple

password

Shared-

secret

password

Peer-to-peer

Yes

Gateway-managed (Gateway & Host are in same domain)

 Master-

Gateway

relationship

Yes

 Gateway-

Host

relationship

Yes

Gateway-managed (Gateway & Host are not in same domain)

 Master-

Gateway

relationship

Yes

 Gateway-

Host

relationship

Yes

 Windows authentication: By default, a PC-Duo application acting as a server uses

Windows authentication to check the Windows credentials of the client application:

 The Host will check the Windows credentials of the PC-Duo Master user in the

case of a peer-to-peer connection;

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