For specific devices, it is now possible to extract the username from Telnet connections with the help of patterns (including TN3270 and TN5250 systems).
To select patterns or request a custom pattern
Navigate to Telnet Control > Authentication Policies and enable Extract username from the traffic.
Click Select target devices to display the list of available target devices. Select the respective device(s) in the Available devices column and click Add.
NOTE: You can only add one TN3270 specific device to the authentication policy.
To remove a device from the Target devices column, select it and click Remove.
Click OK. The target devices are listed after Selected devices.
If you cannot find your device in the list of available target devices, request a custom Pattern Set. To do this, contact our Support Team.
To upload the custom pattern set you received, navigate to Telnet Control > Pattern Sets, browse for the file and click Upload.
To delete a custom Pattern Set from One Identity Safeguard for Privileged Sessions (SPS), click in the respective row. Generic Pattern Sets cannot be deleted.
Telnet settings determine the parameters of the connection on the protocol level, including timeout value, and so on. Complete the following procedure to create a new Telnet settings profile or edit an existing one:
Modifying the Telnet settings is recommended only to advanced users. Do not modify these settings unless you exactly know what you are doing.
To create and edit protocol-level Telnet settings
Navigate to the Settings tab of the Telnet Control menu item and click to create a Telnet setting profile. Enter a name for the profile (for example telnet_special).
Click to display the parameters of the connection.
Modify the parameters as needed. The following parameters are available:
Network idle timeout: Connection timeout value in seconds. To avoid early timeout, set it to a larger value, for example a week (604800 seconds).
Even if the user is not active, the session can contain activity that must be audited (for example, the output of a script). The idle timeout period will start only after this activity has stopped.
Determining if a connection is idle is based on the network traffic generated by the connection, not the activity of the user. For example, if an application or the taskbar of a graphical desktop displays the time which is updated every minute, it generates network traffic every minute, negating the effects of timeout values greater than one minute and preventing One Identity Safeguard for Privileged Sessions (SPS) from closing the connection.
User idle timeout: If no user activity is detected, terminate the session after the configured time has passed since the last user activity.
This can be useful if only user-generated network traffic is important in a session. By using this option, situations described in the caution of Network idle timeout (such as a taskbar clock keeping the network traffic open indefinitely) can be avoided. To enable user idle timeout, select Enable user idle timeout and enter a value that is greater than or equal to the value of Network idle timeout.
Enable pre channel check: Select this option to evaluate the connection and channel policies before establishing the server-side connection. That way if the connection is not permitted at all, SPS does not establish the server-side connection.
To configure TLS security settings on both the Client side and the Server side, proceed to TLS security settings.
Figure 210: <Protocol> Control > Settings > TLS security settings - configuring TLS security settings
Cipher strength specifies the cipher string OpenSSL will use. The following settings options are possible:
Recommended: this setting only uses ciphers with adequate security level.
Custom: this setting allows you to specify the list of ciphers you want to permit SPS to use in the connection. This setting is only recommended in order to ensure compatibility with older systems. For more details on customizing this list, check the 'openssl-ciphers' manual page on your SPS appliance.
For example: ALL:!aNULL:@STRENGTH
Minimum TLS version specifies the minimal TLS version SPS will offer during negotiation. The following settings options are possible:
TLS 1.2: this setting will only offer TLS version 1.2 during negotiation. This is the recommended setting.
TLS 1.1: this setting will offer TLS version 1.1 and later versions during negotiation.
TLS 1.0: this setting will offer TLS version 1.0 and later versions during negotiation.
Note that SPS only permits TLS-encrypted connections. SSLv3 is not supported.
To display a banner message to the clients before authentication, enter the message into the Banner field. For example, this banner can inform the users that the connection is audited.
Select this settings profile in the TELNET settings field of your connections.
When using inband destination selection in Telnet connections, the user can provide the server address and the username using the following methods:
By setting the TELNET ENVIRON option using the SERVER environment variable in the server:port format.
By setting the TELNET ENVIRON option using the USER environment variable in the user@server:port format.
If neither the SERVER nor the USER environment variable, One Identity Safeguard for Privileged Sessions (SPS) displays a terminal prompt where the user can enter the username and the server address.
The following sections describe how to use One Identity Safeguard for Privileged Sessions (SPS) to control and audit VMware Horizon View (formerly known as VMware View) connections. When using SPS to control and audit VMware Horizon View connections, the following requirements and restrictions apply:
Only connections using the Remote Desktop (RDP) display protocol are supported. Connections using the PCoIP or HP Remote Graphics Software display protocols are not supported.
Both direct connections and tunnel connections are supported.
The VMware Horizon View connections must pass SPS directly. It is best if SPS is deployed directly before the Virtual Desktops accessed with VMware Horizon View, and connections are configured in transparent mode.
Deploying SPS that way has the advantage of auditing connections even if the clients access the Virtual Desktops directly, without using a View Connection Server.
Using non-transparent mode is also possible if the VMware Horizon View traffic is routed to SPS with an external device (for example, a firewall).
SPS treats VMware Horizon View connections that satisfy these criteria as common RDP connections. All the features of SPS that are available for RDP connections can be used with VMware Horizon View connections as well, for example, four-eyes authorization, auditing and replaying, indexing the recorded audit trails, and so on. For details on RPD-specific settings, see RDP-specific settings.
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