After logging in to a server, you can connect to the remote desktops and published applications that you are authorized to use.

If your administrator has allowed it, you can configure the certificate checking mode for the TLS/SSL certificate presented by Connection Server. To determine which mode to use, see Setting the Certificate Checking Mode in Horizon Client.

If you want to use an account configured with unauthenticated access to start published applications, see Connect to Published Applications Using Unauthenticated Access for information.


Obtain the following information from your Horizon administrator:

  • Instructions about whether to turn on a VPN (virtual private network) connection.
  • Server name to use for connecting to the server.
  • If the port is not 443, the port number to use for connecting to the server.
  • Credentials for logging in, such as an Active Directory user name and password, RSA SecurID user name and passcode, RADIUS authentication credentials, or smart card personal identification number (PIN).
  • Domain name for logging in.


  1. If a VPN connection is required, turn on the VPN.
  2. Either open a terminal window and enter vmware-view or search the applications for VMware Horizon Client, and double-click the icon.
  3. Connect to a server.
    Option Action
    Connect to a new server

    Double-click the + Add Server button, or click New Server on the menu bar, enter the name of a server as instructed by your system administrator, and click Connect.

    Connect to an existing server Double-click the server icon, or right-click the server icon and select Connect.
    Connections between Horizon Client and the server always use TLS. The default port for TLS connections is 443. If the server is not configured to use the default port, use the format servername:port, for example,
    You might see a message that you must confirm before the login dialog box appears.
  4. If you are prompted for RSA SecurID credentials or RADIUS authentication credentials, enter the credentials and click Login.
  5. If you are prompted for a user name and password, supply Active Directory credentials.
    1. Type the user name and password of a user who is entitled to use at least one desktop or application pool.

      If the Domain drop-down menu is disabled, you must type the user name as domain\username or

    2. (Optional) Select a domain value from the Domain drop-down menu.
    3. Click Login.
  6. (Optional) To configure display settings for a remote desktop, right-click the remote desktop icon and select Settings.
    Option Action
    Select a display protocol If a Horizon administrator has allowed it, use the Connect Via drop-down menu to select the display protocol.
    Select a display layout Use the Display drop-down menu to select a window size or to use multiple monitors.
  7. (Optional) To mark the remote desktop or published application as a favorite, right-click the remote desktop or published application icon and select Mark as Favorite from the context menu that appears.

    A star icon appears in the upper-right corner of the remote desktop or published application name. The next time you log in, you can click the Show Favorites button to find this application or desktop quickly.

  8. Double-click a remote desktop or application to connect.
    If you are connecting to a session-based remote desktop, which is hosted on a Microsoft RDS host, and if the desktop is already set to use a different display protocol, you cannot connect immediately. You are prompted to either use the protocol that is set or have the system log you off the remote operating system so that a connection can be made with the protocol you selected.


After you are connected, the client window appears.