external ssh access to seismology

To access to Simo computer from outside, you have to connect to the IPGP firewall then login to crunch.

Prerequire

You need to have Oracle Java 8 installed.

Install Java
  • on Linux Ubuntu
# add-apt-repository ppa:webupd8team/java
# apt update
# apt install oracle-java8-installer

Firewall connection

Go with your web browser to https://fw.ipgp.fr.
There login with your IPGP account.

After … automatically redirected.
Click on ‘Open secure access in an application’.

It will download a file named : xvpnc_(*).jnlp in your Download folder (the * is a remplacement for several numbers and letters).

Be careful, you can have older files with almost the same name: they came from old connections.

Launch the downloaded apps : 2 ways

It’s almost the same for Linux or Apple. You just have to open the downloaded file xvpnc_*.jnlp with Java Web Start Application.

  • From a terminal on Linux Apple computer inside your Download folder (or where you downlad the file xvpnc_*.jnlp):
login@mycomputer:~/Download$ javaws xvpnc_*.jnlp 
  • From File Manager:

Apple : Right click on it then Open With : Java Web Start
Linux : Right click on it then Properties -> Open with Oracle Java 8 Web Start.

Find crunch port

You should obtain a window with this inside:

Here you can see that the host crunch is accessible through your local adress on port 11237.
In fact when ou log on the firewall you open an ssh tunnel between your computer and the firewall.

Connect to crunch

login@mycomputer:~/Download$ ssh loginsismo@127.0.0.1 -p 11237
-bash-3.2$

what do I have on crunch

Here you have access to your Home directory.