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- #Do i need to enable the microsoft terminal server service full
- #Do i need to enable the microsoft terminal server service windows
O The terminal server is not domain-joined O Internet connection scenarios (for example through TS Gateway), in which the client does not have access to Key Distribution Center (KDC) O Terminal server farms, because farms do not have a Kerberos identity in Active Directory There are scenarios in which Kerberos cannot be used for server authentication, which include: Both client and server should be a part of the same or a trusted domain. This is one of the most secure server authentication schemes for protecting against MITM. Please seeįor more details on the CredSSP protocol.
#Do i need to enable the microsoft terminal server service full
In addition to improving authentication, NLA also helps protect the remote computer from malicious users and software by completing user authentication before a full RDP connection is established an additional benefit is that fewer resources are used on the remote computer prior to authentication. Uses the Credential Security Support Provider (CredSSP) Protocol to perform strong server authentication either through TLS/SSL or Kerberos mechanisms, which protect against MITM attacks. Server authentication mechanisms that can protect against MITM attacks With these earlier versions, you must ensure that your network is tamper-proof by using network level protection mechanisms (for example, IPSec) in order to protect against MITM attacks.
#Do i need to enable the microsoft terminal server service windows
Terminal servers running Windows 2003 Server without SP1 or earlier do not support a clients’ ability to authenticate the terminal server. In Windows Server 2008, Network Level Authentication (NLA) is designed to be secure against MITM, and it supports the ability to authenticate the server with either a SSL/TLS server certificate or Kerberos. In Windows 2003 Server SP1 and later, you can configure the TS server with a SSL/TLS server certificate that will allow the client to verify the server’s identity. Terminal servers running Windows 2003 Server SP1 and later support the ability for a TS client to authenticate a TS server, which protects against MITM attacks. Significant improvements in authentication and security have been made in Terminal Services that can protect against such attacks.
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Thus, server authentication is necessary to prevent MITM attacks. Even though RDP traffic between the client and server is encrypted, the attacker can potentially bypass RDP encryption if he is able to get the keys used to establish the session. As a result, a user might be tricked into entering his credentials on a spoofed server. The attacker can view and/or modify the traffic without the two parties knowledge. “Man In The Middle (MITM) attack” is a term used to describe a class of security vulnerabilities in which an attacker intercepts communication between two parties and impersonates each one to the other. First published on CloudBlogs on Jul, 21 2008