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[[Plik:pl.jpg|right|link={{#titleparts: {{PAGENAME}} | 1 }}]]
<small>< [[Podręcznik użytkownika KDM/en|HPC User Guide]] < [[Dostęp do KDM/en|Access to HPC]] < Logging</small>

To log in to the computational resources ([[Supernova]]) you need an '''SSH client''' on your computer.
You may choose the way you log in to the system from the possibilities described below.

== SSH from Linux ==
Loggin in to Supernova:
  ssh username@supernova.wcss.pl

Switch on X11 forwarding if you need to run GUI:
  ssh -X username@supernova.wcss.pl 

== SSH from Windows ==
You need an SSH client installed e.g. [http://www.chiark.greenend.org.uk/~sgtatham/putty/ PuTTy].

==== Configure a connection in PuTTy ====
To configure a connection in PuTTy follow these steps:
* Run PuTTy
* Go to '''Session'''  
** Fill the '''Host Name''' with '''supernova.wcss.pl'''
** Select '''Connection type''' as '''SSH'''
[[Plik: Putty_login_template.jpg |none|left | Connection configuration in Putty]]

==== Configure a connection with X11 forwarding in PuTTy ====
To configure a connection with X11 forwarding in PuTTy follow these steps:
* Download and install X server on your computer, e.g. [http://sourceforge.net/projects/xming/ X-ming].
* Run the X server installed in previous step
* Run PuTTy
* Go to '''Session'''
** Fill the '''Host Name''' with '''supernova.wcss.pl'''
** Select '''Connection type''' as '''SSH'''
* Go to '''Connection''' -> '''SSH''' -> '''X11'''
** Select '''Enable X11 forwarding''' option 
** Click on '''Open''' to open the connection.
[[Plik: Putty_2_template.jpg‎ | none|left| X11 forwarding configuration in PuTTy]]

== Connection with NoMachine client software ==

=== Installation and configuration ===

*Download the NoMachine [https://www.nomachine.com/download NoMachine] client package for your OS to the computer that you want to control remotely
*After completing the download, launch the installer
*Accept the license agreement and click Next and wait while Setup completes the installation
*Run NoMachine from menu Programs/Applications

[[Plik:NoMachine-welcome.png]]
* On welcome screen click '''Continue'''.
* On "Creante New Connection" screen click '''Continue'''.
* On "New Connection" > "Protocol" set '''NX''' protocol and click '''Continue'''.

[[Plik:NoMachine-connection-wizzard-protocol.png]]

* On "New Connection" > "Host" in text field '''Host''' write: '''ui.wcss.pl''' and port number '''4000'''. Check '''Use UDP communication for multimedia data''' and click '''Continue'''.


[[Plik:NoMachine-connection-wizzard-host-name.png]]
* On "New Connection" > "Authentication" check '''password''' method and click '''Continue'''.


[[Plik:NoMachine-connection-wizzard-authentication.png]]
* On "New Connection" > "Proxy" check default option '''Don't use proxy''' and click '''Continue'''.

[[Plik:NoMachine-connection-wizzard-proxy.png]]
* On "New Connection" > "Save as" in field '''Name''' provide a name for the connection, check '''Create a link one the desktop and click''' option and click '''Continue'''.

[[Plik:NoMachine-connection-wizzard-save-as.png]]


=== Working with NoMachine ===
First steps. 

* Open NoMachine from the Progams/Applications menu.
* In "Recent Connections" window click connection icon and click '''Connect'''

[[Plik:NoMachine-recent-connections.png]]

* In the "Connection to ui.wcss.pl" window provide '''Name''' and '''Password''' (the same as for Supernova cluster), select '''Save this password in the connection file''' and click '''OK'''.

* You can create a virtual desktop by clicking '''New Desktop'''. 


[[Plik:NoMachine-select-virtual-desktop.png]]

* On the next screen click '''Create new virtual desktop''' and then '''Continue'''. 


[[Plik:NoMachine-connecting-to-the-server.png]]

* In the next window you are informed how to access the NoMachine control menu - by clicking the up-right corner of the window or pressing CRTL+ALT+O. Click '''Ok''' on 4 next steps. 

[[Plik:NoMachine-acces-display-and-screen-resolution-wizzard.png]]


[[Plik:NoMachine-change-hardware-settings-wizzard.png]]


[[Plik:NoMachine-Menu-panel-wizzard.png]]


* To change the screen resolution of a virtual desktop go to '''Application Menu''' > '''Settings''' > '''Display'''. A minimal screen resolution for a comfortable work is 1024x768.


[[Plik:window-change-display.png]]



[[Kategoria:HPC User Guide]]
[[Kategoria:Podręcznik użytkownika]]