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One Identity Safeguard for Privileged Sessions 7.0.1.1 LTS - Administration Guide

Preface Introduction The concepts of One Identity Safeguard for Privileged Sessions (SPS)
The philosophy of One Identity Safeguard for Privileged Sessions (SPS) Policies Credential Stores Plugin framework Indexing Supported protocols and client applications Modes of operation Connecting to a server through One Identity Safeguard for Privileged Sessions (SPS) Archive and backup concepts Maximizing the scope of auditing IPv6 in One Identity Safeguard for Privileged Sessions (SPS) SSH host keys Authenticating clients using public-key authentication in SSH The gateway authentication process Four-eyes authorization Network interfaces High Availability support in One Identity Safeguard for Privileged Sessions (SPS) Versions and releases of One Identity Safeguard for Privileged Sessions (SPS) Accessing and configuring One Identity Safeguard for Privileged Sessions (SPS)
Cloud deployment considerations The Welcome Wizard and the first login Basic settings
Supported web browsers and operating systems The structure of the web interface Network settings Configuring date and time System logging, SNMP and e-mail alerts Configuring system monitoring on SPS Data and configuration backups Archiving Using plugins Forwarding data to third-party systems Starling integration
User management and access control Managing One Identity Safeguard for Privileged Sessions (SPS)
Controlling One Identity Safeguard for Privileged Sessions (SPS): reboot, shutdown Managing One Identity Safeguard for Privileged Sessions (SPS) clusters Managing a High Availability One Identity Safeguard for Privileged Sessions (SPS) cluster Upgrading One Identity Safeguard for Privileged Sessions (SPS) Managing the One Identity Safeguard for Privileged Sessions (SPS) license Accessing the One Identity Safeguard for Privileged Sessions (SPS) console Sealed mode Out-of-band management of One Identity Safeguard for Privileged Sessions (SPS) Managing the certificates used on One Identity Safeguard for Privileged Sessions (SPS)
General connection settings HTTP-specific settings ICA-specific settings MSSQL-specific settings RDP-specific settings SSH-specific settings Using Sudo with SPS Telnet-specific settings VMware Horizon View connections VNC-specific settings Indexing audit trails Using the Search interface Advanced authentication and authorization techniques Reports The One Identity Safeguard for Privileged Sessions (SPS) REST API One Identity Safeguard for Privileged Sessions (SPS) scenarios Troubleshooting One Identity Safeguard for Privileged Sessions (SPS)
Network troubleshooting Gathering data about system problems Viewing logs on One Identity Safeguard for Privileged Sessions (SPS) Changing log verbosity level of One Identity Safeguard for Privileged Sessions (SPS) Collecting logs and system information for error reporting Collecting logs and system information of the boot process for error reporting Support hotfixes Status history and statistics Troubleshooting a One Identity Safeguard for Privileged Sessions (SPS) cluster Understanding One Identity Safeguard for Privileged Sessions (SPS) RAID status Restoring One Identity Safeguard for Privileged Sessions (SPS) configuration and data VNC is not working with TLS Configuring the IPMI from the BIOS after losing IPMI password Incomplete TSA response received Using UPN usernames in audited SSH connections
Using SPS with SPP Configuring external devices Using SCP with agent-forwarding Security checklist for configuring One Identity Safeguard for Privileged Sessions (SPS) Jumplists for in-product help Configuring SPS to use an LDAP backend Glossary

Configuring Remote Desktop clients for gateway authentication

To configure the Remote Desktop applications of the clients to perform two separate authentications. One of these authentications is on the Remote Desktop Gateway, that is, on One Identity Safeguard for Privileged Sessions (SPS). The other authentication is on the target server. For details on configuring SPS to act as a Remote Desktop Gateway (or RD Gateway), see Using One Identity Safeguard for Privileged Sessions (SPS) as a Remote Desktop Gateway.

Prerequisites

  • SPS must be configured to act as a Remote Desktop Gateway. For details, see Using One Identity Safeguard for Privileged Sessions (SPS) as a Remote Desktop Gateway.

  • The client must use version 6.1 or newer of the Remote Desktop application.

  • The target server must be member of a domain.

  • The logical interface of SPS must be accessible from the client. You might have to add the address of the logical interface to the Windows/System32/Drivers/etc/hosts file to accomplish this.

To configure Remote Desktop clients for gateway authentication

  1. On your Windows client, start the Remote Desktop Connection application and select Advanced > Settings.

    Figure 221: Configuring Remote Desktop clients to use SPS as a Remote Desktop Gateway (or RD Gateway)

  2. Configure the client to use SPS as its Remote Desktop Gateway. Select Connection settings > Use these RD Gateway settings.

    Figure 222: Configuring Remote Desktop clients to use SPS as a Remote Desktop Gateway (or RD Gateway)

  3. Enter the address of SPS into the Server name field. Use the address of the SPS's logical interface that you have configured to accept RDP connections.

  4. Select Logon method > Ask for password (NTLM).

  5. Uncheck the Bypass RD Gateway server for local addresses and Use my RD Gateway credentials for the remote computer options.

    NOTE: Technically, gateway authentication is performed even if the Use my RD Gateway credentials for the remote computer option is selected, but the same credentials are used on the gateway and on the remote server.

  6. Click OK.

  7. Into the Username enter the domain username (for example, exampledomain\exampleusername).

  8. Click Connect.

    NOTE: Depending on your network environment, it might take up to a minute until the connection is established.

Inband destination selection in RDP connections

To use inband destination selection with RDP connections, it is recommended to use One Identity Safeguard for Privileged Sessions (SPS) as a Remote Desktop Gateway (or RD Gateway). For details, see Using One Identity Safeguard for Privileged Sessions (SPS) as a Remote Desktop Gateway.

To use inband destination selection with RDP connections without using One Identity Safeguard for Privileged Sessions (SPS) as a Remote Desktop Gateway (or RD Gateway), you must use SSL-encrypted RDP connections (see Enabling TLS-encryption for RDP connections).

Configure your RDP clients so SPS can record the username of client uses in the connection. If you do not configure these settings on the clients, SPS will automatically display a login screen for the users to enter their usernames and passwords.

Navigate to Local Group Policy Editor > Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Connection Client and enable the Prompt for credentials on the client computer option in the clients. For details, see the Microsoft Documentation.

Also, your users have the option to encode the address of the destination server in their username, in the username field of their client application. Note that SPS automatically displays a login screen if it cannot determine the username used in the connection, or you have not encoded a destination server in the username field. You can specify the destination address in the login screen when prompted.

When encoding the address of the destination server in the username, there are a few points to keep in mind. Since most RDP client applications limit which special characters can be used in usernames, this is not always intuitive.

For the Microsoft Remote Desktop application (mstsc) and the login screen that SPS displays, note the following points:

  • Use the % character to separate the fields, for example: username%my-targetserver

  • Do not use the @ character.

  • To specify the port number of the server (if it does not use the default port), use the caret ^ character, for example: username%my-targetserver^6464

  • To specify an IPv6 address, replace the colons with carets, and enclose the address in parentheses. For example, to target the ::1 IP address, use username%(^^1). To target port 6464 of the same server, use username%(^^1)^6464.

Usernames in RDP connections

When processing RDP connections, One Identity Safeguard for Privileged Sessions (SPS) attempts to extract the username from the connection. For example, you need the username to:

  • Use gateway authentication for the connection. For details on gateway authentication, see "Configuring gateway authentication" in the Administration Guide.

  • Use usermapping policies. In this case, SPS compares the username on the server with the username on the gateway. For details on usermapping policies and gateway authentication, see "Configuring usermapping policies" in the Administration Guide and "Configuring gateway authentication" in the Administration Guide, respectively.

    NOTE: In certain cases, SPS receives an empty username from the server, and the connection will be denied by the usermapping policy unless a policy is set for the connection that allows every user for the given group. To add such a policy, specify * in the Username on the server field of the usermapping policy. For a list of cases when SPS receives empty username, see Usernames in RDP connections.

  • Search or filter connections by the username on the SPS search interface, or create automatic statistics based on the username.

  • Find the connection of the user on the Four Eyes and Active Connections pages.

  • Usernames are also essential if you want to use One Identity Safeguard for Privileged Analytics. If you are interested in One Identity Safeguard for Privileged Analytics, contact our Sales Team, or your One Identity representative.

SPS can record the username automatically if the RDP connection is using Network Level Authentication (CredSSP), and usually in other scenarios as well. If SPS cannot automatically extract the username, it displays the following login screen, which allows you to paste text-based clipboard contents. Note that SPS can display this login screen only in TLS-encrypted connections.

The known scenarios that interfere with RDP usernames are listed in Usernames in RDP connections.

NOTE: SPS supports usernames both in UPN (such as username@domain) and down-level logon name (such as DOMAIN\username) formats.

Figure 223: Server-side login in RDP

To ensure that your users can access the target servers only when their username is recorded, you can configure SPS to terminate RDP connections if it cannot reliably extract the username. To terminate such connections, clear the RDP Control > Settings > Permit unreliable usernames option.

Windows settings that interfere with username extraction

The following settings on the Windows client or server can prevent SPS from correctly extracting the username from the RDP connection. As a result, the username is not visible on the Search, Four Eyes and Active Connections pages.

  • The DontDisplayLastUserName option is enabled on the server. The DontDisplayLastUserName security setting of Windows servers specifies whether the username from the last successful login is displayed on the login screen as a default for the next login. To disable the DontDisplayLastUserName security setting, do one of the following.

  • There is no server-side authentication. To avoid this problem, ensure that your server requires authentication from the users.

  • If the server is Windows 2003 Server or Windows XP and the Allow to save credentials or Remember my credentials options are enabled in the Remote Desktop client application. In this case, disable these options on the client, and delete any credentials that have already been saved on the client.

Saving login credentials for RDP on Windows

You can use automatic RDP login on Windows, but the stored credentials are not trusted by default, and you have to enter the password for each connection. Create the following local policies on the client to allow delegating saved credentials:

  1. Start the Group Policy Editor: run gpedit.msc.

  2. Navigate to Local Computer Policy > Computer Configuration > Administrative Templates > System > Credentials Delegation.

  3. Open the Allow Delegating Saved Credentials with NTLM-only Server Authentication policy.

  1. Click Show and enter TERMSRV/*.

  2. Click Apply.

  1. Open the Allow Delegating Saved Credentials policy.

  1. Click Show and enter TERMSRV/*.

  2. Click Apply.

  1. Open the Allow Delegating Default Credentials with NTLM-only Server Authentication policy.

  1. Click Show and enter TERMSRV/*.

  2. Click Apply.

  1. Open the Allow Delegating Default Credentials policy.

  1. Click Show and enter TERMSRV/*.

  2. Click Apply.

  1. Verify that the Deny Delegating Saved Credentials policy does not contain TERMSRV/* in the list.

  2. Close the Group Policy Editor.

  3. From the command line, issue the gpupdate /force command.

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