#Reactos rdp server how to#

Turning security down is never a good solution, but only a temporary fix. This is generally not a solution, but a workaround. Three solutions are commonly mentioned, though none of them is really THE solution, but still they can help if you stumble upon the CredSSP required by server problem: Downgrade security on the Windows server to accept SSL/TLSv2

#Reactos rdp server how to#

How to fix CredSSP required by server error? If there is no Kerberos TGT, the Rdesktop will fall back to a lower, insecure level of network connection without the requirement for network-level authentication. When running Rdesktop, CredSSP will check if you have Kerberos TGT to access the remote service and use that for SSO authentication against the remote RDS server.

This means that upon logging in to Linux, you will be authenticated for a Kerberos TGT (Ticket Granting Ticket), which is used to access other services, such as RDP. Windows Active Directory provides a Kerberos infrastructure, enabling Linux to be configured so it authenticates against AD. Linux has Kerberos, which is an authentication mechanism for requesting access to services based on an initial login. However, Linux clients do not support this type of authentication and they require that credentials are provided, either via a Rdesktop command line or via a login window when initiating the remote session. RDP supports SSO (single sign-on) authentication enabling a user to log in with a single ID and password to gain access to a connected system. Why does CredSSP required by server error happen?Īll Windows clients have a credential cache used for authentication against services in a network called NTLM or Windows NT LAN Manager. It is commonly used on ReactOS and Linux installations to connect to Windows machines running Remote Desktop Services, which often leads to the CredSSP required by server error.

Rdesktop client is UNIX based client software for Microsoft’s Remote Desktop Protocol.