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en:services:application_services:high_performance_computing:connect_with_ssh [2023/12/13 11:50] – [Creating SSH Keys] meulert1en:services:application_services:high_performance_computing:connect_with_ssh [2024/04/12 17:21] (current) – [Connect with SSH] meulert1
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 ====== Connect with SSH ====== ====== 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  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   - 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 ==== ==== Graphical Applications ====
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 ===== Creating SSH Keys ===== ===== 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> <code>
-PS C:\Users\win10-virtual> ssh-keygen -t rsa -b 2048+PS C:\Users\win10-virtual> ssh-keygen -t rsa -b 4096
 Generating public/private rsa key pair. Generating public/private rsa key pair.
 Enter file in which to save the key (C:\Users\win10-virtual/.ssh/id_rsa): Enter file in which to save the key (C:\Users\win10-virtual/.ssh/id_rsa):
 Created directory 'C:\Users\win10-virtual/.ssh'. Created directory 'C:\Users\win10-virtual/.ssh'.
-Enter passphrase (empty for no passphrase): +Enter passphrase (empty for no passphrase): ****************** 
-Enter same passphrase again:+Enter same passphrase again: ******************
 Your identification has been saved in C:\Users\win10-virtual/.ssh/id_rsa. 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. Your public key has been saved in C:\Users\win10-virtual/.ssh/id_rsa.pub.
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 SHA256:JIFSfI6/QBdnUaVsjKdHIfCqw1yjZyk96KDp07MlvbM win10-virtual@DESKTOP-N8DT68R SHA256:JIFSfI6/QBdnUaVsjKdHIfCqw1yjZyk96KDp07MlvbM win10-virtual@DESKTOP-N8DT68R
 The key's randomart image is: The key's randomart image is:
-+---[RSA 2048]----+++---[RSA 4096]----+
 |   o..o.ooo..    | |   o..o.ooo..    |
 |  . o ooo= o     | |  . o ooo= o     |
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 ===== Creating SSH Keys with puttygen ===== ===== 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]]. [[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 10-60 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 ===== ===== Connecting to the System inside GÖNET =====
 Just open a terminal and connect with  Just open a terminal and connect with