Product Documentation

Configure Receiver for Linux

Apr 30, 2015

Receiver provides users with secure, self-service access to virtual desktops and applications, and on-demand access to Windows, web, and Software as a Service (SaaS) applications. Citrix StoreFront or legacy webpages created with Web Interface manage the user access.

To connect to resources using the Receiver UI

The Receiver home page displays virtual desktops and applications that are available to users based on their account settings (that is, the server they connect to) and settings configured by Citrix XenDesktop or Citrix XenApp administrators. Using the Preferences > Accounts page, users can perform that configuration themselves by entering the URL of a StoreFront server or, if email-based account discovery is configured, by entering their email address.

Tip: If the same name is used for multiple stores on the StoreFront server, the Accounts page will make the stores appear identical. To avoid confusing users this way, administrators should use unique store names when configuring the store. For PNAgent, the store URL is displayed and uniquely identifies the store.

After connecting to a store, users can search for desktops and applications or browse them by clicking + (the plus sign) on the Receiver home page. Clicking a desktop or application icon copies the resource to the home page, from where users can start it with another click. A connection is created when they do so.

Configure connection settings

You can configure a number of default settings for connections between Receiver and XenApp and XenDesktop servers. You can also change those settings for individual connections, if required.

Connect to resources from a command line or browser

You create connections to servers when you click on a desktop or application icon on the Receiver home page. In addition, you can open connections from a command line or from a web browser.

To create a connection to a Program Neighborhood or StoreFront server using a command line

As a prerequisite, ensure the store is available on the server. If necessary, add it using the following command:

./util/storebrowse --addstore <store URL>
  1. Obtain the unique ID of the desktop or application that you want to connect to. This is the first quoted string on a line acquired in one of the following commands:
    • List all of the desktops and applications on the server:
      ./util/storebrowse -E <store URL>
    • List the desktops and applications that you have subscribed to:
      ./util/storebrowse -S <store URL>
  2. Run the following command to start the desktop or application:
    ./util/storebrowse –L <desktop or application ID> <store URL>

If you cannot connect to a server, your administrator may need to change the server location or SOCKS proxy details. See Connect through a proxy server for details.

To create a connection from a web browser

If you are configuring Mozilla, Netscape, or Chrome, connection configuration is normally carried out automatically during installation.

If you need to set up .mailcap and MIME files for Firefox, Mozilla, or Chrome manually, use the following file modifications so that .ica files start up the Receiver executable, wfica. To use other browsers, you need to modify the browser configuration accordingly.

  1. For the .mailcap file modification, in $HOME, create or modify the .mailcap file and add the line:

    application/x-ica; /opt/Citrix/ICAClient/wfica.sh %s; x-mozilla-flags=plugin:Citrix ICA

  2. For the MIME file modification, in $HOME, create or modify the .mime.types file and add the line:

    application/x-ica ica

    The x- in front of the format ica indicates that ica is an unofficial MIME type not supported by the Internet Assigned Numbers Authority (IANA).

Troubleshoot connections to resources

Users can manage their active connections using the Connection Center. This feature is a useful productivity tool that enables users and administrators to troubleshoot slow or problematic connections. With Connection Center, users can manage connections by:

  • Closing an application.
  • Logging off a session. This ends the session and closes any open applications.
  • Disconnecting from a session. This cuts the selected connection to the server without closing any open applications (unless the server is configured to close applications on disconnection).
  • Viewing connection transport statistics.
To manage a connection
  1. On the Receiver menu, click Connection Center.

    The servers that are used are shown and, for each server, the active sessions are listed.

  2. Do one of the following:
    • Select a server, and disconnect from it, log off from it, or view properties of it.
    • Select a desktop or application, and close the window it is displayed in.

Customize Receiver using configuration files

To change advanced or less common settings, you can modify Receiver's configuration files. These configuration files are read each time wfica starts. You can update various different files depending on the effect you want the changes to have.

Be aware that, if session sharing is enabled, an existing session might be used instead of a newly reconfigured one. This might cause the session to ignore changes you made in a configuration file.

Apply changes to all Receiver users

If you want the changes to apply to all Receiver users, modify the module.ini configuration file in the $ICAROOT/config directory.
Note: You do not need to add an entry to All_Regions.ini for a configuration value to be read from module.ini, unless you want to allow other configuration files to override the value in module.ini. If an entry in All_Regions.ini sets a default value, the value in module.ini is not used.

Apply changes to new Receiver users

If you want the changes to apply to all future new Receiver users, modify the configuration files in the $ICAROOT/config directory. For changes to apply to all connections, update wfclient.ini in this directory.

Apply changes to all connections for particular users

If you want the changes to apply to all connections for a particular user, modify the wfclient.ini file in that user’s $HOME/.ICAClient directory. The settings in this file apply to future connections for that user.

Validate configuration file entries

If you want to limit the values for entries in wfclient.ini, you can specify allowed options or ranges of options in All_Regions.ini. See the All_Regions.ini file in the $ICAROOT/config directory for more information.

Note: If an entry appears in more than one configuration file, a value in wfclient.ini takes precedence over a value in module.ini.

About the parameters in the files

The parameters listed in each file are grouped into sections. Each section begins with a name in square brackets indicating parameters that belong together; for example, [ClientDrive] for parameters related to client drive mapping (CDM).

Defaults are automatically supplied for any missing parameters except where indicated. If a parameter is present but is not assigned a value, the default is automatically applied; for example, if InitialProgram is followed by an equal sign (=) but no value, the default (not to run a program after logging in) is applied.

Precedence

All_Regions.ini specifies which parameters can be set by other files. It can restrict values of parameters or set them exactly. If you want changes to apply to all Receiver users, modify module.ini.

For any given connection, the files are generally checked in the following order:

  1. All_Regions.ini. Values in this file override those in:
    • The connection's .ica file
    • wfclient.ini
  2. module.ini. Values in this file are used if they have not been set in All_Regions.ini, the connection's .ica file, or wfclient.ini but they are not restricted by entries in All_Regions.ini.

If no value is found in any of these files, the default in the Receiver code is used.

Note: There are exceptions to this order of precedence. For example, the code reads some values specifically from wfclient.ini for security reasons, to ensure they are not set by a server.

Configure Citrix XenApp connections using Web Interface

This topic applies only to deployments using Web Interface.

Citrix XenApp enables users to connect to published resources (that is, published applications, server desktops, and published content) through a server running a XenApp Services site. Citrix XenApp also creates the menu and desktop items through which users access published resources.

Customizable options for all users running Citrix XenApp on your network are defined in a configuration file, config.xml, which is stored on the Web Interface server. When a user starts Citrix XenApp, it reads the configuration data from the server. After that, Citrix XenApp updates its settings and user interface periodically, at intervals specified in the config.xml file.

Important: config.xml affects all connections defined by the Web Interface server.

Publish content

Typically, Receiver connects to applications and desktops. Receiver can also open specific files associated with an application. In this case, the administrator publishes a file, rather than an application. This process is referred to as publishing content, and is a useful way to share any type of electronic information with network users.

There is a limitation to the type of files that are recognized by Receiver. For the system to recognize the file type of the published content and for users to view it through Receiver, a published application must be associated with the file type of the published file. For example, to view a published Adobe PDF file using Receiver, an application such as Adobe PDF Viewer must be published. Unless a suitable application is published, users cannot view the published content.