@@ -31,3 +31,26 @@ Please connect to the two systems with SSH. Using a `train0XX` account, it looks
To forward the X server, use `-X` or `-Y` as an additional flag. In case of launching a GUI application on the compute backends it might be necessary to forward your SSH authentication agent (`-o ForwardAgent=yes`).
If you are new to SSH, you might want to have a look at some tutorials ([example](https://www.digitalocean.com/community/tutorials/ssh-essentials-working-with-ssh-servers-clients-and-keys)).
Use `ssh-add id_train0XX` to stop entering the passphrase of the given key.
### Creating Alias
It's handy to create an alias for your connection to JURECA or JURON, especially if you are using the custom private SSH key of the `train0XX` accounts.
Add the following to your `~/.ssh/config` (create the file if it does not exist):
```
Host jureca
HostName jureca.fz-juelich.de
User train055
IdentityFile ~/Downloads/id_train055
ForwardAgent Yes
```
(Adapt lines 3 and 4 to match your configuration.)
You can then use the alias `jureca` now in any statement with `ssh`, `scp`, or `rsync`, like
