SSH - Revision history

Khaoula-ferchichi-d6c1@uni-bonn.de at 14:07, 22 May 2024

2024-05-22T14:07:25Z

Khaoula-ferchichi-d6c1@uni-bonn.de at 14:06, 22 May 2024

2024-05-22T14:06:41Z

Carsten-bauer-d88c@uni-paderborn.de at 13:57, 7 July 2021

2021-07-07T13:57:37Z

Daniel-schurhoff-de23@rwth-aachen.de at 11:19, 23 June 2020

2020-06-23T11:19:45Z

Daniel-schurhoff-de23@rwth-aachen.de at 11:17, 23 June 2020

2020-06-23T11:17:51Z

Daniel-schurhoff-de23@rwth-aachen.de at 10:56, 23 June 2020

2020-06-23T10:56:56Z

Daniel-schurhoff-de23@rwth-aachen.de at 10:50, 23 June 2020

2020-06-23T10:50:33Z

Paul-kapinos-e26d@rwth-aachen.de: Paul-kapinos-e26d@rwth-aachen.de moved page Ssh to SSH: Korrektunr Grosschreibung

2020-06-12T09:03:56Z

Paul-kapinos-e26d@rwth-aachen.de moved page SSH to SSH: Korrektunr Grosschreibung

Daniel-schurhoff-de23@rwth-aachen.de at 13:06, 3 September 2019

2019-09-03T13:06:28Z

Daniel-schurhoff-de23@rwth-aachen.de at 13:06, 3 September 2019

2019-09-03T13:06:17Z

@@ Line 8: / Line 8: @@
 == Access ==
 OpenSSH is the standard ssh client for ''Linux'' and ''Mac'' operating systems, and is freely available to all users. <br />
-For ''Windows'' users, options include Putty, MobaXterm, Bitvise or the GitBash (coming with ssh) all of which are also free. Since Windows 10 Update 1709, Microsoft has integrated "ssh" into the system, allowing users to easily connect by opening a cmd window and running the "ssh" command. You can thus open a '''cmd''' window (Start - type "cmd" - <ENTER>) and run <code>ssh <username | University ID | Institution ID> @<hostname.domain | IP Adresse> </code> like you would with Linux or MacOS. Additionally, Microsoft has allowed users of windows 10 and later versions, to run a Linux distribution alongside their Windows environment by implementing Windows Subsystem for Linux or WSL. This feature enables users to enjoy the benefits of both a Windows operating system and a Linux environment without the need for dual-booting or virtualization, providing a compatibility layer that allows Linux system calls to be translated into Windows system calls. This allows users to run Linux binaries natively on their Windows system without the need for a separate Linux virtual machine.
+For ''Windows'' users, options include Putty, MobaXterm, Bitvise or the GitBash (coming with ssh) all of which are also free. Since Windows 10 Update 1709, Microsoft has integrated "ssh" into the system, allowing users to easily connect by opening a cmd window and running the "ssh" command. You can thus open a '''cmd''' window (Start - type "cmd" - <ENTER>) and run <code>ssh <username | University ID | Institution ID> @ <hostname.domain | IP Adresse> </code> like you would with Linux or MacOS. Additionally, Microsoft has allowed users of windows 10 and later versions, to run a Linux distribution alongside their Windows environment by implementing Windows Subsystem for Linux or WSL. This feature enables users to enjoy the benefits of both a Windows operating system and a Linux environment without the need for dual-booting or virtualization, providing a compatibility layer that allows Linux system calls to be translated into Windows system calls. This allows users to run Linux binaries natively on their Windows system without the need for a separate Linux virtual machine.
 Please note, that access to the cluster's login nodes is in almost all cases restricted to specific networks within a university or facility, making it necessary to connect from a campus network rather than from elsewhere. In such cases, users can use a [[VPN|Virtual Private Network (VPN)]] provided by the university to access the login nodes remotely.

@@ Line 1: / Line 1: @@
 [[Category:Basics]]
 == General ==
-Secure Shell (ssh) is a [[shell|commandline]]-tool for logging into a different computer over some network (e.g. the internet) and for executing commands on that machine, as if one would be sitting there instead of the own computer. So you use ssh to build a connection to the other computer and can then interact with it, using its [[shell]]. It is commonly used to [[Getting_Started#Login_or_.22How-to-now-actually-connect-to-the-supercomputer.22|login]] to the [[Nodes#Login|login nodes]] of a supercomputer.
+SSH, also known as Secure Shell, is a [[shell|command-line]] tool that allows users to log into a remote computer over a network (e.g. the internet) and execute commands on that machine. This enables an interaction with the remote computer as if the user would be physically present. So using its [[shell]], ssh is commonly used to access the [[Nodes#Login|login nodes]] of supercomputers.
 __TOC__
@@ Line 8: / Line 7: @@
 == Access ==
-OpenSSH is the standard ssh client on ''Linux'' and the ''Mac'' and it is freely available for everyone. <br />
+OpenSSH is the standard ssh client for ''Linux'' and ''Mac'' operating systems, and is freely available to all users. <br />
-On ''Windows'', you can use Putty, Bitvise or the GitBash (coming with ssh) which is also free. On Windows 10 since Update 1709, Microsoft has packaged "ssh" right into windows. You can thus open a '''cmd''' window (Start - type "cmd" - <ENTER>) and run <code>ssh username@hostname.domain</code> like you would with Linux or MacOS.
+For ''Windows'' users, options include Putty, MobaXterm, Bitvise or the GitBash (coming with ssh) all of which are also free. Since Windows 10 Update 1709, Microsoft has integrated "ssh" into the system, allowing users to easily connect by opening a cmd window and running the "ssh" command. You can thus open a '''cmd''' window (Start - type "cmd" - <ENTER>) and run <code>ssh <username | University ID | Institution ID> @<hostname.domain | IP Adresse> </code> like you would with Linux or MacOS. Additionally, Microsoft has allowed users of windows 10 and later versions, to run a Linux distribution alongside their Windows environment by implementing Windows Subsystem for Linux or WSL. This feature enables users to enjoy the benefits of both a Windows operating system and a Linux environment without the need for dual-booting or virtualization, providing a compatibility layer that allows Linux system calls to be translated into Windows system calls. This allows users to run Linux binaries natively on their Windows system without the need for a separate Linux virtual machine.
+Please note, that access to the cluster's login nodes is in almost all cases restricted to specific networks within a university or facility, making it necessary to connect from a campus network rather than from elsewhere. In such cases, users can use a [[VPN|Virtual Private Network (VPN)]] provided by the university to access the login nodes remotely.
 == Usage ==

@@ Line 1: / Line 1: @@
 [[Category:Basics]]
 == General ==
-Secure Shell (ssh) is a [[shell|commandline]]-tool for logging into a different computer over some network (e.g. the internet) and for executing commands on that machine, as if one would be sitting there instead of the own computer. So you use ssh to build a connection to the other computer and can then interact with it, using it's [[shell]]. It is commonly used to [[Getting_Started#Login_or_.22How-to-now-actually-connect-to-the-supercomputer.22|login]] to the [[Nodes#Login|login nodes]] of a supercomputer.
+Secure Shell (ssh) is a [[shell|commandline]]-tool for logging into a different computer over some network (e.g. the internet) and for executing commands on that machine, as if one would be sitting there instead of the own computer. So you use ssh to build a connection to the other computer and can then interact with it, using its [[shell]]. It is commonly used to [[Getting_Started#Login_or_.22How-to-now-actually-connect-to-the-supercomputer.22|login]] to the [[Nodes#Login|login nodes]] of a supercomputer.

@@ Line 18: / Line 18: @@
 <hpc name="loginNode">
 <code>
-  $ ssh -l <login> <cluster>
+  $ ssh -l login@cluster
 </code>
 </hpc>
@@ Line 29: / Line 29: @@
 <hpc name="loginNodeX">
 <code>
-  $ ssh -X -l <login> <cluster>
+  $ ssh -X -l login@cluster
 </code>
 </hpc>

@@ Line 26: / Line 26: @@
 If you need to start graphical applications you need to enable X11 forwarding/X11 tunneling by your ssh client.
 For OpenSSH this is done by giving it the command line option <code>-X</code> (or <code>-Y</code> if the previous did not work):
 <hpc name="loginNodeX">
@@ Line 33: / Line 32: @@
 </code>
 </hpc>
 This might or might not work depending on the your operating system, because it requires an [https://en.wikipedia.org/wiki/X_Window_System X11-Server] running on your local machine, which is not available by default on Mac and Windows. To utilize graphical tools anyway, you might want to look into [https://doc.itc.rwth-aachen.de/display/CC/Remote+desktop+sessions FastX], which provides the necessary functionality for Mac and Windows.

@@ Line 16: / Line 16: @@
 Logging in with OpenSSH on a Linux Cluster is done with:
   $ ssh -l <login> <cluster>
 Here <code><login></code> is your username and <code><cluster></code> is one of the [[Nodes#Login|login nodes]] of the system, you are trying to connect to. At the first login you will be asked to verify the authenticity of the host. If the shown host is correct, enter <code>yes</code>. After pressing <code>RETURN</code> you will be prompted to enter your password for the provided username.

← Older revision		Revision as of 13:06, 3 September 2019
Line 1:		Line 1:
		+	[[Category:Basics]]
		+
	== General ==		== General ==
	Secure Shell (ssh) is a [[shell\|commandline]]-tool for logging into a different computer over some network (e.g. the internet) and for executing commands on that machine, as if one would be sitting there instead of the own computer. So you use ssh to build a connection to the other computer and can then interact with it, using it's [[shell]]. It is commonly used to [[Getting_Started#Login_or_.22How-to-now-actually-connect-to-the-supercomputer.22\|login]] to the [[Nodes#Login\|login nodes]] of a supercomputer.		Secure Shell (ssh) is a [[shell\|commandline]]-tool for logging into a different computer over some network (e.g. the internet) and for executing commands on that machine, as if one would be sitting there instead of the own computer. So you use ssh to build a connection to the other computer and can then interact with it, using it's [[shell]]. It is commonly used to [[Getting_Started#Login_or_.22How-to-now-actually-connect-to-the-supercomputer.22\|login]] to the [[Nodes#Login\|login nodes]] of a supercomputer.