This topic describes the system and user requirements for installing Citrix Receiver for Linux.
For x86 devices, processor speeds of at least 1.6 GHz display single-monitor sessions well at typical resolutions (for example, 1280 x 1024). If you use the HDX 3D Pro feature, a native hardware accelerated graphics driver and a minimum processor speed of 2 GHz are required.
For ARM devices, a hardware H.264 decoder is required for both general H.264 support and HDX 3D Pro. Performance also benefits from faster processor clock speeds.
HDX MediaStream Flash Redirection
For all HDX MediaStream Flash Redirection requirements, see CTX134786.
The version of the Adobe Flash plug-in running on the user device must be either the same as or later than the version running on the XenApp or XenDesktop server to support client-side rendering. If this is not the case, only server-side rendering is available.
Citrix recommends always upgrading to the latest version of the plug-in to obtain the latest functionality and security-related fixes.
HDX RealTime Webcam Video Compression
HDX MediaStream Windows Media Redirection
If you plan to use Philips SpeechMike devices with Receiver, you may need to install the relevant drivers on the user device. Go to the Philips web site for information and software downloads.
Smart card support
The default behaviour is 'noaction'. No action is taken to clear credentials stored and tokens generated with regards to the smart card on the removal on the smart card. The 'forcelogoff' action clears all credentials and tokens within StoreFront on the removal of the smart card.
Availability of Receiver for Linux 13.2 Technology Preview features
In order for your users to experience the Citrix Receiver Technology Preview features, they must connect to stores hosted on StoreFront 3.0 Technology Preview servers.
Some of the features and functionality of Receiver are available only when connecting to newer versions of XenApp and XenDesktop and may also require the latest hotfixes for those products.
Provides direct access to StoreFront stores.
Provides access to StoreFront stores from a web browser. For the limitations of this deployment, refer to "Important considerations" in Receiver for Web sites.
Web Interface in conjunction with the NetScaler VPN client:
Provides access to virtual desktops and apps from a Web browser.
Connections to Receiver for Web or to Web Interface support the 32-bit mode of Internet Explorer. For the Internet Explorer versions supported, see StoreFront system requirements and Web Interface system requirements.
Note: For information on changes to Google Chrome NPAPI support, see Citrix blog article, Preparing for NPAPI being disabled by Google Chrome.
Citrix Receiver for Linux supports HTTPS and ICA-over-TLS connections through any one of the following configurations.
For information about domain-joined and non-domain-joined devices, refer to the XenDesktop 7 documentation.
Windows domain-joined, managed devices (local and remote, with or without VPN) and non-domain joined devices (with or without VPN) are supported.
For information about the NetScaler Gateway and Access Gateway versions supported by StoreFront, seeStoreFront system requirements.
Note: References to NetScaler Gateway in this topic also apply to Access Gateway, unless otherwise indicated.
Private (self-signed) certificates
If a private certificate is installed on the remote gateway, the root certificate for the organization's certificate authority must be installed on the user device to successfully access Citrix resources using Receiver.
Note: If the remote gateway's certificate cannot be verified upon connection (because the root certificate is not included in the local keystore), an untrusted certificate warning appears. If a user chooses to continue through the warning, a list of apps is displayed but the apps will not start.
Installing root certificates on user devices
For information about installing root certificates on user devices as well as configuring Web Interface for certificate use, see Secure Receiver communication.
Wildcard certificates are used in place of individual server certificates for any server within the same domain. Citrix Receiver for Linux supports wildcard certificates, however they should only be used in accordance with your organization's security policy. In practice, alternatives to wildcard certificates, such as a certificate containing the list of server names within the Subject Alternative Name (SAN) extension, could be considered. Such certificates can be issued by both private and public certificate authorities.
Intermediate certificates and the NetScaler Gateway
If your certificate chain includes an intermediate certificate, the intermediate certificate must be appended to the NetScaler Gateway server certificate. For information, see Configuring Intermediate Certificates.
Although you do not need to log on as a privileged (root) user to install the Citrix Receiver for Linux, USB support is enabled only if you are logged on as a privileged user when installing and configuring Receiver. Installations performed by non-privileged users will, however, enable users to access published resources using either StoreFront through one of the supported browsers or using Receiver's native UI.
Citrix provides a script, hdxcheck.sh, as part of the Receiver installation package. The script checks whether your device meets all of the system requirements in order to benefit from all of the functionality in Receiver for Linux. The script is located in the Utilities directory of the installation package.