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General platform notes

The following information relates to installation of ThinLinc on most platforms. Make sure to also read the pages specific to your specific platform.

No executable profiles could be found on this system

This error message can be shown after login when trying to start a ThinLinc session.

  • The most common reason is that a desktop environment isn’t installed on your ThinLinc server. Install a desktop environment to fix this, we recommend lightweight desktops like MATE or XFCE.

In some cases, this error message can be shown even if a desktop environment is available, there are two main reasons in that case are:

  • There is no ThinLinc profile available for that specific desktop, see our documentation for ThinLinc profiles or this community post for tips.
  • There are only Wayland-desktops installed. ThinLinc only works with X11 desktops. On Fedora 41, for example, the default GNOME desktop only works with Wayland, unless the gnome-session-xsession package is installed.

Web Access and Active Directory

Modern versions of sssd will attempt to respect the Group Policy of the Active Directory domain it is part of. Unfortunately, this causes third-party software such as ThinLinc to be prevented from authenticating users. Lines such as the following will be seen in the system log files:

Mar 8 15:13:51 ubuntu1604 pamtester: pam_sss(thinlinc:account): Access denied for user johndoe: 6 (Permission denied)

To remedy this, sssd must be configured to either ignore the Group Policy, or to recognize ThinLinc as an approved service. Add the following to the relevant domain section of /etc/sssd/sssd.conf to completely ignore the Group Policy:

ad_gpo_access_control = disabled

Or add the following to mark ThinLinc as a remote desktop service:

ad_gpo_map_remote_interactive = +thinlinc

Note that the native ThinLinc Client is unaffected, as it uses the system’s standard SSH server for authentication.

Frequently asked questions

  • ThinLinc is packaged in subscriptions with a tiered pricing system. A higher number of subscriptions will give a lower price. The subscriptions can be purchased for different periods, 12, 36 and 60 month. A longer duration will give a greater price. The payment of the subscriptions is done in advance.

    The default rule is that the prices are set in accordance with the number of subscriptions that are purchased at the actual call off. Deviation from this can be eventually agreed if a roll-out plan can be committed in advance.

  • Every valid ThinLinc subscription agreement has a specific ID. Contact Cendio at support@cendio.com and refer to your ID, and we will issue new user licenses for you.

  • Contact Cendio support team at support@cendio.com. And refer to your ThinLinc subscription ID in your support request.

  • We will set up an evaluation account that gives the permission to receive support directly from our technical team. Cendio can also provide trial licenses for more than 10 users. Please contact sales@cendio.com directly.

  • Cendio wants to sponsor organizations where the business aims to make the world better. This means to help people, regions etc. that really need help. Please contact us a sales@cendio.com.

  • Cendio offers a non-profit discount for organizations that fall under the definitions that can be found at the https://www.cendio.com/thinlinc/shop/non-profit-organization/. Please contact us at sales@cendio.com for pricing. 

  • Cendio will, in good time before expiration of the ThinLinc subscription agreement, send a reminder by email. The renewal process will follow the same routines that are used in a new or additional purchase.

  • Other set-ups are possible for bigger deals. Contact sales@cendio.com.

  • Purchases can be done directly via invoice, web shop or by a reseller. Cendio is a Swedish and EU company with long experience from doing business with foreign organizations. If you have any questions or need support, please contact us at sales@cendio.com

     

  • Best functionality and performance will always be achieved by upgrading to the latest version, both on the server and client-side. A newer version on the client-side will always give a better user experience than a former version. Cendio’s ambition is to keep good compatibility and functionality between the different versions. Historically, good compatibility between versions has been 3-5 years.

  • A ThinLinc set-up consists of a server software, client software and user licenses.

    Server software

    The server software is the heart of ThinLinc installation and handles all sessions, desktop environments and generates the virtual desktop, workspace etc.

    User licenses

    To allow more than 10 sessions to connect access to the server software, user licenses need to be added into the server software. User licenses are bought from Cendio. Please note, when placing user licenses into the ThinLinc server, the counting starts from 0, not 10. In concrete, this means that you need to buy and install the number of user licenses that you need.

    Client software

    The client software is installed on the device that is used to connect to the server and provision the virtual desktop / workspace. If using the web access client, no local installation of client software is needed, the provisioning is generated via the web browser that is installed at the server.

  • It’s up to the licensee to decide who can connect into the server installation. The ThinLinc client software is free of charge and can be downloaded by everyone.

  • The licensing is per organization. There is no limitation on how the ThinLinc user licenses are distributed in the legal organization, as long as the number of consumed licenses don’t exceed the number of paid licenses. It’s allowed to move the user licenses, but not copy.

  • The license usage can be seen in the Web Administration status module, details can be found in the status module documentation. ThinLinc will notify you when the limit of licenses has been reached, for detailed information, see our license handling documentation.

  • Both the ThinLinc server and client software are free to distribute. The user licenses are connected to a purchase and are not allowed to be distributed. For more detailed information, see our end-user license agreement.

  • A specific version of ThinLinc is supported 3 years from release date. After 3 years, Cendio can’t guarantee support.

  • The number of user licenses that will be delivered will be in accordance with the number of subscriptions that have been acquired by the customer. The user licenses are perpetual.

  • When adding user licenses into the ThinLinc server, the counting will start from zero. So if you require 200 users, you need to have 200 user licenses

  • You need to buy user licenses and install them in the ThinLinc server. The user licenses are received through buying ThinLinc subscriptions.

  • It’s easy to add new users into a current ThinLinc set-up. By purchasing additional subscriptions into your agreement, so will we issue additional user licenses.

  • Cendio will, after receiving a valid order, distribute user licenses via email for the latest version after a purchase. If the purchase is a renewal and the customers have already received the latest version, no user licenses will be delivered by default, updated licenses will be delivered on request in this case.

  • It’s possible to merge existing agreements. When doing a merge, the period shall be at least 12 months.

  • The default rule is that the prices are set in accordance with the number of subscriptions that are purchased at the actual call off. Deviation from this can be eventually agreed if a roll-out plan can be committed in advance.

  • The client software packages are free of charge.

  • The ThinLinc license is perpetual and will still work after the expiry date of the ThinLinc subscriptions.

     

  • Both as an individual and as an organization, it is not allowed to use the free version of ThinLinc if you have valid user licenses.

  • ThinLinc is free to use for up to 10 concurrent users for both individuals and organizations (on a group basis).

  • ThinLinc subscriptions give the possibility to run more than 10 concurrent users per ThinLinc installation. It also gives technical support directly from Cendio and the right to get upgrades (new versions) for ThinLinc.

  • ThinLinc premium subscription gives prioritized answers, faster response time, and direct access to our qualified technical support via telephone service.

  • The free version of ThinLinc is limited to 10 concurrent users and is supported via the ThinLinc community. The commercial version of ThinLinc is packaged in a so-called subscription and can be scaled for more than 10 users. The subscriptions also give the right to get professional support in ThinLinc directly from the Cendio technical team.

  • ThinLinc is free to use up to 10 users at the same time per individual or organization worldwide, without any obligations. The usage can be 10 installations with one user per each or one installation with 10 users. What matters is that the 10 users aren’t exceeded.

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