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Student Unix Access 
Quick List of accessible student servers The server address for logging into the Unix Systems is: student.cms.gre.ac.uk The server address for ftp'ing files across to your Unix home area is: stu-ftp.cms.gre.ac.uk These are the only hosts that are available to CMS students. The use of any other host such as zeus or atlas is not supported by the CMS Unix team. How do i log into Unix from the University labs? There are 3 ways to login to Unix from the University labs. The first method is via the Exceed program installed on all of the machines in the King William labs. Logging in through Exceed Although there are no actual Unix terminals available for student use at the Maritime Greenwich campus, the Unix network can be accessed from Windows by using the Exceed program. The server available for student use is student.cms.gre.ac.uk. Student.cms.gre.ac.uk is located in Greenwich and has all CMS students home areas on it. Using Exceed: Exceed is available in all the LIS and CMS labs (except the Video Editing). In the CMS labs you just need to click "Start" then "Programs" then find the "Hummingbird Connectivity" program group and run the shortcut called "1. Student Multiple Windows"    Logging in using putty ssh client As a secure alternative to using telnet(wikipedia entry) the secure shell client putty is avaliable in Windows. Select student.cms.gre.ac.uk from the putty program group in the start menu.   Logging into through the web interface An alternative method of logging into Unix is to use a Java enabled web browser and go to the following link: http://student.cms.gre.ac.uk/login This will open up a java applet providing a secured telnet type session on to the student.cms.gre.ac.uk server. However, unless you are running this from a computer with Linux installed on it and a fully functional X windowing system, you will not be able to run any X applications. You will only be able to work from the command line. Logging into Linux through Exceed You can log into Linux through Exceed in the CMS computer labs by selecting "CMS Student Linux Server" from the Hummingbird Connectivity program group in the Start menu as shown below:  Logging into Linux via VMware player You can log into Linux desktop using the following icon on the Microsoft Windows desktop:    To shut down the linux desktop you can either close the application which will cause Linux to shutdown or Press the red icon in the top right corner and select shutdown from the option screen when it is present to you. How do i log into Unix from home? It is also possible to login to the Universities Unix systems from home using the following methods. This will allow you to work from home just as if you were at University. Again the most preferable way is through a local installation of Linux if you have one as this affords the most functionality once you are logged into the system. Logging in from Linux If you have Linux installed at home, then you can login to the Universities Unix systems by opening a Secure Shell onto the student server which is: student.cms.gre.ac.uk The command to carry out this is: % ssh -l USER ID student.cms.gre.ac.uk where USER ID is your Unix logon user id. Depending on your distribution and how you/they have setup ssh, the DISPLAY environment variable will be set to your local machine when using this method of logging in. If however it is not and you recieve errors like "cannot open display" then you may need to pass a -X option to ssh. The full command would then look like % ssh -X -l USER ID student.cms.gre.ac.uk If your version of ssh does not support the -X option, you will have to enable X forwarding in the sshd_config file (or possibly in your personal ~/.sshd_config if you have one) You can check what your DISPLAY environment variable is set to by typing the following command at the shell prompt: % echo $DISPLAY Logging in from Windows Although Microsoft Windows has no built in Secure Shell application, programs that implement Secure Shell can be freely downloaded from www.openssh.com. These provide some of the benefits of the native Linux apps such as secure sockets and encrypted passwords. Two of these applications that are highly recommended are: PuTTY - a free implementation of Telnet and SSH for Win32 platforms, along with an xterm terminal emulator. TTSSH - A Plugin for the Tera Term Pro Terminal Emulator for Windows. The address you will need to provide these applications is: student.cms.gre.ac.uk Along with your userid and password Using X Windows on Microsoft Windows Alternatively, if you want to run X applications such as mozilla or Xemacs etc, you will need to install and run an X Server for win32 platforms. One of these programs that is freely available is weirdX. This program can be downloaded from their website at the following address: http://www.jcraft.com/weirdx/index.html Here are some setup guides and help files to help you with installing WeirdX. README INSTALL FAQ Click Here for an explanation of what X Windows is Another program that will provide access to the Unix environment from windows while also allowing you to run X applications is Cygwin. This provides a bash shell, an X server and many other tools such as an SSH client. The following screenshot shows the user executing the SSH client inside the bash shell running on Windows.   Click to enlarge the image Click Here to view the Online Cygwin documentation NOTE: In order to run X applications remotely, it is advisable to have a broadband Internet connection. Click Here for an explanation of what X Windows is Logging into through the web interface An alternative method of logging into Unix is to use a Java enabled web browser and go to the following link: http://student.cms.gre.ac.uk/login as described above Logging in with telnet When you use telnet(wikipedia entry) to connect to any unix server; the information that is sent between the server and the telnet client is not encrypted thus rendering the connection insecure. This means that it is possible for any traffic, including your userid and password to be captured as it travels over the Internet. While the university systems do support the use of telnet for legacy reasons; it's use is *not* recommended and you are advised to use the ssh client program instead. ssh encrypts all the traffic that is passes between the server and client and is extremely secure. You should always use ssh instead of telnet for connecting to remote systems. It is anticipated that the use of telnet on CMS unix systems will be turned off in the future and you are advised to start using ssh now. How do i FTP files to my Unix home area? When you use ftp(wikipedia entry) to connect to any unix server; the information that is sent between the server and the ftp client is not encrypted thus rendering the connection insecure. This means that it is possible for any traffic, including your userid and password to be captured as it travels over the Internet. While the university systems do support the use of ftp for legacy reasons; it's use is *not* recommended and you are advised to use a sftp client program instead. sftp encrypts all the traffic that is passes between the server and client and is extremely secure. You should always use sftp instead of ftp for connecting to remote systems. It is anticipated that the use of ftp on CMS unix systems will be turned off in the future and you are advised to start using sftp now. If you want to sftp files from your J: drive or your home computer to your Unix home area, simply point your favourite SFTP client to the following address using your Unix username and password: address: stu-ftp.cms.gre.ac.uk |
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