Remote shell through a proxy jump

The proxy jump can be a "bastion host":

• verdi.ens.fr to access machines in the department of geosciences at ENS
• gurtu.lmd.jussieu.fr to access machines in LMD-Jussieu

or a declared machine to access IDRIS or TGCC.

If you want to reach a computer at the department of geosciences from outside ENS, ask for an account on verdi.ens.fr to the IT people of the department of geosciences.

Add in the file ~/.ssh/config lines declaring spirit as a proxy to reach jean-zay (see appendix).

Host jean-zay
    HostName jean-zay.idris.fr
    ProxyJump guez@spirit1.ipsl.fr
    User rdzt899

(rdzt899 is my login name at IDRIS)

Then the command:

ssh jean-zay

automatically goes through spirit.

Also applies to scp and sftp. Also applies to dynamic port-forwarding.

We can also add in the file ~/.ssh/config lines declaring verdi as a proxy to reach vierne (vierne is my personal desktop computer at ENS):

Host vierne
    ProxyJump guez@verdi.ens.fr
    User guez