ThinLinc 4.1.0 Release Notes

Introduction

We are excited to announce a new ThinLinc release, version 4.1.0. It includes more than 100 enhancements. The most prominent features are:

  • An upgraded X server platform boosts performance and compatibility. It is now possible to use the "GNOME Shell" with ThinLinc.
  • A brand new HTML5 Client has been added, allowing access from mobile devices such as the Apple iPad (R).
  • The ThinLinc client now supports Kerberos authentication.

Changes in This Release

In the list below, the bug number is given in parentheses. For more information, visit https://www.cendio.com/bugzilla/.

Server

  • ThinLinc works on most modern Linux distributions and Oracle Solaris (R). We recommend that you deploy ThinLinc on one of these tested platforms:
    • Red Hat (R) Enterprise Linux Server 6 (64-bit)
    • SUSE Linux Enterprise Desktop 11 SP2 (R) (64-bit)
    • Ubuntu Desktop (R) 12.04 (64-bit)
    • Oracle Solaris (R) 10
  • The X Server platform has been upgraded. The X server is now based on X.Org 1.14.0. In addition to support for new extensions such as XInput2, it is also faster. The "render_bench" test indicates a performance increase of 30%. Compatibility with Unity 2D has also been improved. The "RandR" interface has been upgraded from version 1.2 to 1.4. (4417)
  • ThinLinc now works with "GNOME Shell" - the core user interface of GNOME 3. (3836, 4598)
  • The X Server now provides the X keyboard extension (XKB). This gives better compatibility with modern applications and desktop environments. This extension also provides a more advanced interface for keyboard handling. (3074)
  • GLX version 1.4 is supported. This is the latest version of the OpenGL extension to the X Window System. (4019)
  • A session profile for the MATE Desktop is provided. (4406)
  • A problem with the earlier release could cause the login services to stop responding every sunday, when installed on Ubuntu distributions. This has been corrected. (4471)
  • The symbolic link ~/.thinlinc/xinit.log is no longer created. The session log is instead available as /var/opt/thinlinc/sessions/$USER/last/xinit.log . (3780)
  • The default keyboard layout is now "US". Please note that the "-KeyboardMap" argument is no longer supported. The default layout is defined by the /sessionstart/keyboard_layout parameter. It can also be changed at runtime with the "setxkbmap" command. Also note that the default layout of a remote RDP session is determined by the locale of the user session. (4526)
  • Several versions of Ubuntu contains a LSB support script "install_initd" which does not work. This release contains a workaround for this problem, allowing the ThinLinc services to be installed correctly on these distributions. (4546)
  • On some systems with the "AppArmor" security module, applications such as Evince did not start. This has been corrected. (4468)
  • It is now possible to configure OpenSSH on a ThinLinc Server with a restricted port forwarding configuration, where a user can only create port forwards to their own Xvnc instances. This feature uses the "PermitOpen" option and is available with OpenSSH 4.5 and later. (4591)
  • In earlier versions, the xfig application was not displayed correctly when using 64-bit ThinLinc servers. This has been corrected. (4539)

General

  • This release features support for publishing a single application. This mode is activated by calling the application with the tl-single-app command, either from the client, or by creating a suitable profile on the server. (4465, 4466)

Client

  • The ThinLinc client now supports authentication using an existing Kerberos ticket. In a Kerberos environment, this makes it possible to initiate ThinLinc connections without having to enter credentials. (4003)
  • The Windows client is now supported on Windows 8 and Windows Server 2012. (4353)
  • A HTML5 client is included as a "Technology Preview" feature, called "ThinLinc Web Access". This client makes it possible to connect to ThinLinc servers from devices which lacks a native client, including the Apple iPad. (4132)
  • The Windows client now uses "OpenSSH" SSH client. This means that the SSH implementation is now the same on all platforms. This also means that the file format of public key identify files has been changed: The Windows client now requires OpenSSH identify files. (3183)
  • A client package for "Wyse Enhanced SUSE Linux Enterprise Thin client" (SLETC) is now provided. (3725)
  • A client package for "Wyse Linux v6" is no longer provided. (4503)
  • The client is more tolerant against user profile scripts (.tcshrc, .bashrc etc) which prints information during login. (4540)
  • A problem with comma/delete on the numeric keyboard has been corrected. (4068)

Smart Card Support

  • Smart Card Single Sign-On against Windows 2008 and Windows 2008 R2 is now supported. (3393)
  • When authenticating with a smart card, the client will now forward information about the used card, certificate and smart card reader to the server. This information can be used by the RDP client when authenticating with a smart card against Windows servers, providing a single sign-on experience. (4498, 4565)

Printing Support

  • Printing to the "local" printer with the Windows client did not work if the option "Show printer selection dialog on each print" was active. This has been fixed. (4625)

Virtual Desktop Infrastructure (VDI)

  • The VirtualBox integration has been removed. (4486)

TLCOS

  • Please note that this is the last release which includes TLCOS. Various other alternatives are available. This includes Thinstation, eLux from Unicon Software, and Universal Desktop Converter from IGEL Technology. (4356)

Windows (R) Integration

  • The RDP client now supports Credential Security Support Provider (CredSSP). (2571)
  • The RDP client can automatically reconnect to the server after a network failure. (4501)
  • SeamlessRDP supports "session sharing". This means that multiple applications can be invoked in seamless mode, using a single remote RDP session. This minimizes resources and reduces the time it takes to start an additional application. (2289)
  • SeamlessRDP did not work against Windows 2008 R2. This has been corrected. (4517)

Corrected Issues

ThinLinc has also been enhanced in many other ways. The complete list of corrected issues is:

1464, 1643, 1795, 2289, 2504, 2544, 2571, 2611, 2639, 2728, 2945,
2968, 3074, 3104, 3114, 3115, 3131, 3155, 3183, 3233, 3318, 3365,
3393, 3456, 3463, 3725, 3780, 3836, 3934, 3983, 3992, 4003, 4019,
4068, 4077, 4126, 4132, 4154, 4207, 4225, 4242, 4262, 4353, 4356,
4403, 4406, 4416, 4417, 4430, 4451, 4452, 4461, 4462, 4465, 4466,
4468, 4471, 4475, 4479, 4482, 4484, 4486, 4489, 4498, 4499, 4501,
4503, 4504, 4505, 4506, 4508, 4510, 4513, 4517, 4524, 4525, 4526,
4528, 4529, 4539, 4540, 4545, 4546, 4547, 4556, 4557, 4561, 4563,
4565, 4573, 4574, 4575, 4576, 4577, 4579, 4591, 4595, 4598, 4605,
4623, 4625, 4634, 4646, 4648, 4658, 4698
eLux (R) is a registered trademark of UniCon Software GmbH.
Linux (R) is a registered trademark of Linus Torvalds.
Mac OS X is a trademark of Apple Computer, Inc.
iPad is a trademark of Apple Computer, Inc.
OpenGL (R) is a registered trademark of Silicon Graphics, Inc.
Red Hat (R) is a registered trademark of Red Hat, Inc.
Solaris (R) is a registered trademark of Oracle Corporation.
ThinLinc (R) is a registered trademark of Cendio AB.
Ubuntu (R) is a registered trademark of Canonical Ltd.
Windows (R) is a registered trademark of Microsoft, Inc.
VirtualBox (R) is a registered trademark of Oracle Corporation.