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One Identity Safeguard for Privileged Sessions 5.8.0 - Administration Guide

Preface Introduction The concepts of SPS The Welcome Wizard and the first login Basic settings User management and access control Managing SPS
Controlling SPS: reboot, shutdown Managing Safeguard for Privileged Sessions clusters Managing a high availability SPS cluster Upgrading SPS Managing the SPS license Accessing the SPS console Sealed mode Out-of-band management of SPS Managing the certificates used on SPS
General connection settings HTTP-specific settings ICA-specific settings RDP-specific settings SSH-specific settings Telnet-specific settings VMware Horizon View connections VNC-specific settings Indexing audit trails Using the Search (classic) interface Using the Search interface Searching session data on a central node in a cluster Advanced authentication and authorization techniques Reports The SPS RPC API The SPS REST API SPS scenarios Troubleshooting SPS Configuring external devices Using SCP with agent-forwarding Security checklist for configuring SPS Jumplists for in-product help Third-party contributions About us

Network Level Authentication (NLA) with domain membership

Purpose:

To use Credential Security Service Provider (CredSSP, also called Network Level Authentication or NLA) when SPS is member of the domain. If you cannot or do not want to join SPS to the domain, see "Network Level Authentication without domain membership" in the Administration Guide.

Prerequisites:

The target servers and SPS must be in the same domain, or you must establish trust between the domains that contain the target servers and SPS. For details on the type of trust required, see "Using SPS across multiple domains" in the Administration Guide.

Steps:
  1. Navigate to RDP Control > Settings, and select the Enable Network Level Authentication option. (If you will have connections that will not use Network Level Authentication, create a separate RDP Settings policy).

  2. Navigate to RDP Control > Domain membership.

  3. Enter the name of the domain (for example mydomain) into the Domain field.

    Figure 169: RDP Control > Domain membership — Joining a domain

  4. Enter the name of the realm (for example mydomain.example.com) into the Full domain name field.

    NOTE:

    Ensure that your DNS settings are correct and that the full domain name can be resolved from SPS. To check this, navigate to Basic Settings > Troubleshooting > Ping, enter the full domain name into the Hostname field, and select Ping host.

  5. Click Commit.

  6. Click Join domain. A pop-up window is displayed.

  7. SPS requires an account to your domain to be able to join the domain. Enter the following information:

    • The name of the user into the Username field.

    • The password into the Password field.

      NOTE:

      SPS accepts passwords that are not longer than 150 characters. The following special characters can be used: !"#$%&'()*+,-./:;<=>?@[\]^-`{|}

    • The name of your domain controller into the Domain controller field. If you leave this field blank, SPS tries to find the domain controller automatically.

      NOTE:

      Ensure that your DNS settings are correct and that the hostname of the domain controller can be resolved from SPS. To check this, navigate to Basic Settings > Troubleshooting > Ping, enter the name of the domain controller into the Hostname field, and select Ping host.

    • The organizational unit (OU) into the Organization unit field.

      The OU string reads from top to bottom without RDNs, and is delimited by a '/'. Note that '\' is used for escape by both the shell and ldap, so it may need to be doubled or quadrupled to pass through, and it is not used as a delimiter.

  8. Click Join domain.

  9. If successful, SPS displays the name of the domain it joined.

    NOTE:

    If you need SPS to leave the domain for some reason, click Leave domain.

Using SPS across multiple domains

If your users are in a domain (EXAMPLE-DOMAIN), SPS is also in that domain (EXAMPLE-DOMAIN), but your users need to access servers that are in a different domain (OTHER-DOMAIN), you must establish a level of trust between the domains. This is summarized in the following table.

Domain username of the client Domain of the target server Result
EXAMPLE-DOMAIN\myusername EXAMPLE-DOMAIN Connection is established
EXAMPLE-DOMAIN\myusername OTHER-DOMAIN If OTHER-DOMAIN trusts EXAMPLE-DOMAIN, the connection is established
OTHER-DOMAIN\myusername OTHER-DOMAIN If two-way trust is established between OTHER-DOMAIN and EXAMPLE-DOMAIN, the connection is established
OTHER-DOMAIN\myusername EXAMPLE-DOMAIN If two-way trust is established between OTHER-DOMAIN and EXAMPLE-DOMAIN, the connection is established

NOTE:

If you use an LDAP database when using SPS accross multiple domains, LDAP will only use the username without the domain name to verify the group membership.

Network Level Authentication without domain membership

Purpose:

There are scenarios when you want to use SPS to monitor RDP access to servers that accept only Network Level Authentication (NLA, also called CredSSP), but the client, SPS, and the server are not in the same domain (there is no trust between their domains), or any of them is not in a domain at all. For example, you cannot add SPS to the domain for some reason, or the RDP server is a standalone server that is not part of a domain. The following table shows such a scenario.

User Client domain membership SPS domain membership Server domain membership
local or any domain any domain not a domain member, or other than <server-domain> <server-domain>
Limitations:
  • Server-side redirection may not work.

Steps:
  1. Navigate to RDP Control > Settings, and select the RDP settings policy that you use in your connection policies.

  2. Clear the Enable Network Level Authentication > Require domain membership option.

  3. Click Commit.

Verifying the certificate of the RDP server in encrypted connections

Purpose:

By default, SPS accepts any certificate shown by the server. To accept only verified certificates, complete the following steps:

Steps:
  1. Create a list of trusted CA certificates that will be used to verify the certificate of the server. For details, see Verifying certificates with Certificate Authorities.

  2. Navigate to RDP Control > Connections and select the connection policy to modify.

  3. Select Verify server certificate.

    NOTE:

    This setting has no effect if the session uses Network Level Authentication, because in such cases SPS uses a different method to validate the server certificate.

    When using Network Level Authentication (NLA, also called CredSSP), there is no verification performed in the TLS layer due to the TLS session-binding. For more information on TLS session-binding, see section [MS-CSSP]: Credential Security Support Provider (CredSSP) Protocol in the Microsoft documentation.

    Figure 170: RDP Control > Connections — Using SSL-encryption in RDP connections

  4. Select the CA list to use for verifying the certificate of the server from the Trusted CA list field.

  5. Click Commit.

  6. Optional step: Configure your Windows servers to display a certificate signed with the above Certificate Authority for incoming RDP connections. To accomplish this, complete the following steps:

    1. Generate a certificate that contains the IP address or the hostname of the target server in its Common Name (CN) field and sign it with the Certificate Authority whose certificate you added to the Trusted CA list of SPS.

    2. Convert the signed certificate of the target server to PKCS12 format that includes the private key.

    3. Start the Microsoft Management Console (MMC) on the target server and select Add Snap-in > Certificates > Computer Account.

    4. Right-click the Personal store, then select All Tasks > Import, and select the certificate created for the server.

    5. Complete the Certificate Import Wizard, but do not select the Extended certificate properties option.

    6. Select Start > Administrative tools > Remote Desktop > Remote Desktop Session Host Configuration.

    7. Right-click the connection you want to configure and select Properties > General.

    8. Set the Security layer to SSL.

    9. Click Certificate > Select and select the imported certificate. The server will use this certificate to verify its identity for the incoming RDP connections.

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