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SMA (Secure Mobile Access) 11.3 - HTML5 Support for SSH, Telnet, VNC and enhanced RDP HTML5 client

03/26/2020 6 People found this article helpful 95,495 Views

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    Description

    With the advent of HTML5, it's much easier now to access graphical and text terminal back ends using just a browser based HTML5 client instead of Native or Java clients. 

    Prior to 11.3.0, the following HTML5 clients were supported:
    • RDP
    • Citrix
    In 11.3.0, it has been expanded to include the following HTML5 clients:
    • SSH
    • Telnet
    • VNC
    • Enhance RDP client to add more functionality

    Resolution

    RDP Configuration

    The new RDP clients - Windows Terminal Services, Citrix or VNC - have the following enhancements on the WorkPlace > Graphical Terminal Shortcut > General page with Windows Terminal Services selected.

    Browser based client

    All end point devices will use a browser-based RDP client.

    Note:

    • A browser-based RDP client does not support advanced session options such as NLA.

    Image

    Bring remote audio to local computer

    Select the Bring remote audio to local computer check box to enable users to access remote audio during the session.

    Note:

    • Audio redirection is network intensive and can affect performance. The default is off.

    Image

    Display Properties

    Ability to dynamically adjust the screen size such that no scrolling is required. With this any adjustment of browser based RDP screen will result in disconnect and reconnect with the back-end and user need not use scroll bars to move around. The default resolution is 1024 x 768. The administrator can also let the workplace User choose.

    Image
    Startup options

    Ability to specify a startup application with full path working directory etc. This will help the end-user connect to the desired RDP machine and get directly logged in with the application the user is trying to access. 

    Image

    VNC configuration

    Here, the administrator needs to configure only the IP address and port number of the VNC machine

    Image

    SSH and Telnet configuration

    For SSH and Telnet, no separate HTML5 configuration is present. User can provide the details of SSH and Telnet server

    Note:

    • Unlike Native/Java clients, end-users will not have the ability to perform certain actions like copy-paste in the SSH/telnet window or use Up/Down arrows to scroll up and down the screens. 

    Image

    Java Deprecation in 11.3.0

    In 11.3.0, all Java based NAM clients are being deprecated and will not be shown in default AMC view. So when a customer upgrades or gets a new box with 11.3.0 imaged on it, it will not show any Java NAM clients. In order to bring back support for Java clients, admin will need to use the MGMTNABLE_JAVA_SHORTCUTS CEM value and set it to true. On doing this, the Graphical terminal and Text terminal shortcuts screen will display a Java deprecation warning message.

     

    Note:

    • On enabling this, CEM, AMC screen options will not change (i.e no Java client radio buttons will be shown). 
    • By default, only HTML5 clients will be enabled. The underlying system will switch to Java based clients only when CEM is enabled.

    Warning message shown when the CEM is set to true

    Image

    Enabling CEM

    Image

    FAQ

    If the user is on a tablet or phone does it automatically fall back to hmtl5?
    Yes, with the changes for WorkPlace Lite access, mobile devices automatically fall back to the HTML5 versions.
    Does the RDP HTML5 client support does dual monitor?
    Not currently.
    Are the personal bookmarks included on import/export?
    Yes.
    For the SSH HTML5 client, can the SSH host key be stored on the appliance instead of the client for security reasons?
    The host key is encrypted and stored with the browser's local storage. 

    Related Articles

    • CT with Device Guard is stuck on Identifying when GVC Client is installed
    • SMA1000: CT compatibility with 3rd party VPN clients like GVC, Citrix and Fortinet
    • How can I upgrade firmware in SMA 1000 series appliance?

    Categories

    • Secure Mobile Access > SMA 1000 Series

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