VNC Viewer users enter their user account credentials, and then must authenticate to a RADIUS server.Ĭreating your own custom authentication scheme System authentication + RADIUS authentication Requires VNC Server to be running on a domain joined device. This scheme can be considered inherently two factors of authentication the smartcard is something the user owns, and the PIN is something the user knows. VNC Viewer users are transparently authenticated by an X.509 digital certificate they own, stored on a smartcard or authentication token or in a certificate store, without having to enter a password. Requires VNC Viewer and VNC Server to be running on domain joined devices. VNC Viewer users are transparently authenticated by secure network services, without having to enter a password. VNC Viewer users enter the user name they normally use to log on to their user account on the remote computer, and then provide credentials, and/or perform operations, mandated by particular PAM authentication module(s). (labelled Interactive Mac authentication or Interactive UNIX authentication) This is the default scheme for Enterprise and Professional subscriptions. VNC Viewer users enter the user name and password they normally use to log on to their user account on the remote computer. (labelled Windows password, Mac password or UNIX password) VNC Viewer users enter the password you specify when you install VNC Server (this should be at least 6 case-sensitive characters long, and can include is the only scheme available for Home subscriptions. The standard authentication schemes for your subscription and platform are available from VNC Server’s Options > Security page: Please feel free to leave your comments and questions in the comments portion of this post.Understanding the standard VNC Server authentication schemes I hope that you found this article useful. Today we learned a couple solid, reliable mechanisms for establishing a remote administration connection to a Mac OS X computer. Remote Mac OS X desktop session from Windows Conclusion The following screenshot shows a VNC session between a Windows XP workstation and a Mac OS X Lion computer: I myself use TightVNC because of its robust support for add-ons. Several quality VNC clients for Windows are available: If we want to establish a remote desktop session to a Mac OS X computer, the VNC protocol is probably our best option. Of course, once we have authenticated to the Mac, we can issue shell commands as if we had a local Terminal session open on the computer. Remote Mac OS X Terminal session from Windows In the screen output you see (a) the connection and authentication process (b) a run of pwd to test that we are in fact connected to a Mac and (c) authentication as the root superuser. The following image shows a PuTTY-based SSH connection to a remote Mac OS X computer. NOTE: Technically, we could use the built-in Telnet client in Windows to establish to the Mac OS X Telnet server, but as we both know, this protocol is hideously unsecure. Both are easy to use, and accomplish the same goal. I would suggest that you try either OpenSSH or PuTTY. Thus, we will have to download an SSH client. Unfortunately, Microsoft has never (repeat: never) included built-in support for this vendor-neutral, open-source protocol in its operating systems. We can use a Secure Shell (SSH) client in Windows to establish a secure remote Terminal connection to our target Mac OS X computer. You may need to take this information into account when firewalls and Internet connections are involved. NOTE: VNC uses TCP port 5900 and SSH uses TCP port 22 by default. Supply a strong password and click OK to complete the configuration.Įnabling incoming VNC connections in Mac OS X To enable the VNC server, select Remote Management and then press Computer Settings….A drop-down pane appears in which we can select VNC viewers may control screen with password. □Įnabling inbound SSH connections in Mac OS X In the screenshot below, "uwarnti" refers to the currently logged on Mac user, and the IP address is, well, the IP address. The status area at right helpfully informs us of our SSH connection string. To turn on the SSH server, enable Remote Login. On your Mac OS X computer, open the Sharing System Preferences pane. Thus, we have immediate, “out of the box” remote connectivity to our Mac boxes. The good news is that Mac OS X (both the server and desktop varieties) include built-in File Transfer Protocol (FTP), Secure Shell (SSH), and Virtual Network Computing (VNC) servers.
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