Differences

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

--- en:services:application_services:high_performance_computing:connect_with_ssh [2023/07/13 16:10] – [Upload SSH Key] jbierma1
+++ en:services:application_services:high_performance_computing:connect_with_ssh [2024/04/12 17:21] – [Connect with SSH] meulert1
@@ Line 1: / Line 1: @@
 ====== Connect with SSH ======
+<WRAP center round info 70%>
+\\\\
+A more detailed and up to date version is available [[https://docs.hpc.gwdg.de/getting_started/connecting/index.html|here]].
+</WRAP>
 To access the Scientific Compute Cluster, you need
-  - an [[en:services:application_services:high_performance_computing:account_activation|activated, *non-student* account]]
+  - an [[en:services:application_services:high_performance_computing:account_activation|activated account]]
   - an SSH client
-Please note, that you can only connect to our frontends from inside the [[en:services:network_services:goenet:start|GÖNET]], our campus network. If you are not inside GÖNET, you can either use a [[en:services:network_services:vpn:start|VPN]] or use to ''login.gwdg.de'' as a jump host.
+Please note, that you can only connect to our frontends from inside the [[en:services:network_services:goenet:start|GÖNET]], our campus network. If you are not inside GÖNET, you can either use a [[en:services:network_services:vpn:start|VPN]] or connect to ''login.gwdg.de'' as a jump host.
-Since May 15th, 2020, authenticitation by password has been deactivated for security reasons. To log on to the frontends an SSH key is required.
 ==== Graphical Applications ====
@@ Line 19: / Line 26: @@
 ===== Creating SSH Keys =====
-On Linux, macOS and the latest Windows 10 Versions SSH is already built in. A key can be generated with the command ''ssh-keygen -t rsa -b 2048 -f <yourkey>''. As soon as you enter the command you will be asked to secure the key with a passphrase. Please do not use keys without a passphrase to log in to our systems.
+On Linux, macOS and the latest Windows 10 Versions SSH is already built in. A key can be generated with the command ''ssh-keygen -t rsa -b 4096 -f <yourkey>''. As soon as you enter the command you will be asked to secure the key with a passphrase. Please do not use keys without a passphrase to log in to our systems.
 <code>
-PS C:\Users\win10-virtual> ssh-keygen -t rsa -b 2048 -f .ssh/id-rsa
+PS C:\Users\win10-virtual> ssh-keygen -t rsa -b 4096
 Generating public/private rsa key pair.
-Enter passphrase (empty for no passphrase):
+Enter file in which to save the key (C:\Users\win10-virtual/.ssh/id_rsa):
-Enter same passphrase again:
+Created directory 'C:\Users\win10-virtual/.ssh'.
-Your identification has been saved in .ssh/id-rsa.
+Enter passphrase (empty for no passphrase): ******************
-Your public key has been saved in .ssh/id-rsa.pub.
+Enter same passphrase again: ******************
+Your identification has been saved in C:\Users\win10-virtual/.ssh/id_rsa.
+Your public key has been saved in C:\Users\win10-virtual/.ssh/id_rsa.pub.
 The key fingerprint is:
 SHA256:JIFSfI6/QBdnUaVsjKdHIfCqw1yjZyk96KDp07MlvbM win10-virtual@DESKTOP-N8DT68R
 The key's randomart image is:
-+---[RSA 2048]----+
++---[RSA 4096]----+
 |   o..o.ooo..    |
 |  . o ooo= o     |
@@ Line 42: / Line 51: @@
 +----[SHA256]-----+
 </code>
-This creates both the private key file <yourkey> and a corresponding public key file <yourkey>.pub. Never give out your private key, but always upload only the public key!
+This creates both the private key file <yourkey> and a corresponding public key file <yourkey>.pub (in the example: id_rsa and id_rsa.pub). Never give out your private key, but always upload only the public key!
 ===== Creating SSH Keys with puttygen =====
 [[https://docs.gwdg.de/doku.php?id=en:services:application_services:high_performance_computing:connect_with_ssh:putty#creating_an_ssh_key_with_puttygen| Here is a description that provides information how to create an ssh key with puttygen]].
-==== Upload SSH Key ====
+===== Upload SSH Public Key =====
-To upload a key, please log into your account on the [[https://id.academiccloud.de|My AcademicID]] portal and open the "Security" tab. Then scroll down to "SSH Public Keys" and click "Add SSH Public Key". You can now add a **public** key. \\
+To upload a key, please log into your account on the [[https://id.academiccloud.de|My AcademicID]] portal and open the "SECURITY" tab. Then scroll down to "SSH PUBLIC KEYS" and click "ADD SSH PUBLIC KEY". You can now add a **public** key. \\
-**Note 1:** If you copy your public key from a text editor or a terminal, please make sure that your editor or your terminal does not insert any linebreaks, because this will make the copy of your public key invalide.\\
+**Note:** If you copy your public key from a text editor or a terminal, please make sure that your editor or terminal does not insert any linebreaks, because this will make the copy of your public key invalid.\\
 \\
-**<wrap em>Important</wrap>** it can take up to 10 minutes until the key is synchronised with the systems. If the login does not work, be patient and try again later.
+**<wrap em>Important</wrap>** It can take up to 10-60 minutes until the key is synchronised with the systems. If the login does not work, be patient and try again later.
 ===== Connecting to the System inside GÖNET =====
 Just open a terminal and connect with