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Alternatively you can have simple terminal access in a web browser. 

Downloading tsh 

The tsh application is required to perform user authentication once every 12 hours.

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Info

Windows users should skip to our Guide for Windows SSH to ECMWF.

OpenSSH 7.3 or later has a simple command line option to connect via our gateway (shell.ecmwf.int) to the destination-host:

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Code Block
languagebash
Host ecgate
  User ab0
  ProxyJump ab0@shell.ecmwf.int

See the Legacy Configuration note below if your ssh client is older than 7.3.

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Show If
groupecmwf
  • Linux VDI (both legacy OpenSUSE and CENTOS production CentOS 8 beta)
  • Physical office workstations

To access any other host, the ProxyJump feature allows chaining by using a comma, like so:

Code Block
languagebash
ssh -J ab0@shell.ecmwf.int,ab0@ecgate ab0@lxc

You can also set password-less login, as below.


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Browse to  http://webshell.ecmwf.int/destination-host/username (replacing destination-host and username with your selection).

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Tip

We recommend using the Windows Subsystem for Linux if you can (on your own machine), followed by starting the SSH Agent and then connecting as for Linux/MacOS systems.

Alternatively, you can use:

Expand
titleMobaXterm SSH from Windows 10 (ECMWF laptop)
  1. Install MobaXterm if it is not already on your system
  2. Download tsh (you may need to instruct antivirus software to ignore the file)
  3. Start MobaXterm
  4. Login using tsh (you will always need to specify the --proxy setting)
  5. Use the following in $HOME/.ssh/config (MobaXterm's home):
Code Block
languagebash
Host ecgate
  User ab0
  ProxyCommand ssh -q -i c:/users/ab0/.tsh/keys/shell.ecmwf.int/firstname.lastname@ecmwf.int -W %h:%p ab0@shell.ecmwf.int
  IdentityFile c:/users/ab0/.tsh/keys/shell.ecmwf.int/firstname.lastname@ecmwf.int


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Expand
titleNative SSH from Windows 10 (own machine)
  1. Start the Windows SSH Agent Service
  2. Download tsh (you may need to instruct antivirus software to ignore the file)
  3. Login using tsh (you will always need to specify the --proxy setting)
  4. Use an SSH config as below:
Code Block
languagebash
# Windows currently has a bug, you need the full path to ssh or you will get:
# posix_spawn: No such file or directory

Host *.ecmwf.int
  User ab0
  ProxyCommand C:\Windows\System32\OpenSSH\ssh.exe -q -W %h:%p ab0@shell.ecmwf.int

# this assumes the SSH Agent is running, otherwise add:
# Host shell.ecmwf.int
#   IdentityFile ~/.tsh/keys/shell.ecmwf.int/firstname.lastname@ecmwf.int


Tip

The Windows 10 Terminal is a decent tabbed command line interface (albeit with no X11 support).

Expand
titleNew sessions can be configured following this example


Code Block
languagejs
{
  "guid": "{717406b0-06cb-454c-a0c4-875267fa373d}", # run "[guid]::NewGuid()" in a PowerShell to generate this
  "name": "ecGate",
  "commandline": "ssh ab0@ecgate.ecmwf.int"
  "suppressApplicationTitle": true,
  "hidden": false,
  "fontSize": 10,
  "fontFace": "Fira Code",
  "cursorShape": "filledBox",
  "cursorColor": "#073642",
  "colorScheme": "Solarized Dark",
},




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