Vuori User's Guide > Using the Vuori cluster > Logging in
Sisältö
 
Tehdyt toimenpiteet

Logging in

This section describes how to log in to Vuori.
The outside world knows Vuori as vuori.csc.fi. Inside the domain csc.fi the short alias name vuori can be used. When logging into Vuori, you will actually get connected to one of the two login nodes(vuori1 and vuori2). These nodes provide the usual system services needed for program development and the preparation of the production runs, e.g., the compilers.

To log in you normally have to first access a local workstation (at your university or some other site on the Internet) and then use an SSH program to connect to Vuori (vuori.csc.fi):
ssh vuori.csc.fi

If your user id on Vuori is different from your user id on the local computer, you must give your user id on Vuori as option to the ssh, e.g.

ssh vuori.csc.fi -l user_id

or just type

ssh user_id@vuori.csc.fi

Your password on Vuori will then be asked. After displaying the prompt, Vuori is ready to execute your commands.

An SSH program must be used to connect to Vuori as well as to all other CSC systems, because SSH creates a secure connection ensuring proper authentication and user and data privacy.

If you are using an X terminal or an X server program, you can establish an X Window System connection to the Vuori directly. An X Window System connection to the Vuori through an SSH connection running in local xterm is established by typing:

localhost% xterm -e ssh vuori.csc.fi

The encrypted SSH connection takes care of all the necessary environment settings.

With a local X server you should be able to run remote X Windows programs on Vuori. Remote program windows appear on your screen as if the program was run locally. However, there might be some delay and slow responses depending on the speed of your Internet connection and Vuori's load. In order to run remote X Windows programs, your SSH connection has to forward X11 connections. Some SSH setups enable it by default whereas in some cases it has to be enabled separately. At least with OpenSSH, X11 forwarding is enabled by passing the command line option -X to ssh. If remote programs seemed sluggish, compression of SSH connection might help. With OpenSSH, compression is enabled with ssh command line option -C.

Downloading SSH and X windows programs

In case your local computer doesn't have SSH or X windows we have listed few internet resources where you can obtain these.

SSH

Academic users can obtain a freeware version of SSH from the www site

http://www.ssh.fi/

It is recommended to download the latest version. There are also plenty of free versions of SSH, for example OpenSSH (Unix/Linux) and PuTTY (Windows/Linux). These can be obtained from

http://www.openssh.com/

http://www.chiark.greenend.org.uk/~sgtatham/putty/

X windows

For example the X window systems for Windows can be obtained from

http://www.straightrunning.com/XmingNotes/

http://x.cygwin.com/