Differences

This shows you the differences between two versions of the page.

--- skill-tree:use:1:5:b [2020/06/07 17:23] – [Outcomes] luciana
+++ skill-tree:use:1:5:b [2020/06/25 19:56] – [Outcomes] kai_h
@@ Line 2: / Line 2: @@
 # Background
-A HPC system is accessed remotely and has its own file systems that contain data and programs to execute.
+An HPC system is accessed remotely and has its particular file systems that contain data and programs to execute.
-Learning the ways of general interaction with the remote system and tools involved is essential for newcomers.
+Learning the ways of general interaction with the remote system and the tools involved is essential for newcomers.
-Users must connect to a HPC system typically using the Secure Shell (SSH) which then starts a shell and allows for interactive access.
+Users must connect to an HPC system typically using the Secure Shell (SSH), which then starts a shell and allows the interactive access.
-When the user disconnects such a session is terminated.
+When the user disconnects, such a session is terminated.
-Starting of a server-sided session that persists after disconnection enables to execute long-running programs remotely and allows to seamlessly continue on a  previous session.
+A server-sided session that persists after disconnection enables the user to execute long-running programs remotely and allows the continuation of a previous session seamlessly.
-Data transfer between a local users system (e.g., desktop or laptop) and remote system requires special tools and allows even for interactive access.
+Data transfer between a local user system (e.g., desktop or laptop) and a remote system requires special tools. Interactive access is also allowed.
-Tools discussed are generally valid for user systems using Linux, Mac, and Windows but also mobile devices.
+The tools discussed here are generally valid for systems using Linux, Mac, Windows, and also mobile devices.
 # Aim
@@ Line 18: / Line 18: @@
   * Describe how SSH-authentication works
     - Password authentication
-    - Public-Key authentication
+    - Public-key authentication
     - The role of an authentication agent and the security implications
   * Generate an SSH public/private key under Linux
   * Register a key for public-key authentication using ssh-copy-id
   * Perform a remote login from Linux using SSH
+  * Use SSH-agent or Windows equivalents
+  * Use Agent forwarding to connect to a third HPC system from an HPC system that you logged into with ssh from your computer
   * Know when to use and how to create a config file
-  * Utilize tools to transfer data between local and remote system
+  * Utilize tools to transfer data between the local and remote system
     - scp
     - sftp
     - rsync (-avz)
-  * Describe how SSHFS allows to mount a remote directory to a local directory for interactive usage (Mac/Linux only)
+  * Describe how SSHFS allows mounting a remote directory to a local directory for interactive usage (Mac/Linux only), e.g. for copying files or to transparently use your favourite graphical text editor on the local computer for editing files on the remote cluster
   * Utilize screen and tmux to preserve a session between logins
-    - creation of a session
+    - Creation of a session
-    - detaching from the current session
+    - Detaching from the current session
-    - resuming a previous session
+    - Resuming a previous session
 # Subskills