Emacs Tramp ssh double hop

Question

Could somebody please help me setup Emacs Tramp to do a double hop? I want to work on machine2.abc.def.edu to which I can connect only through machine1.abc.def.edu. My usern

Answer 1

Okay, let's try something different then, without opening a tunnel. How about the following in your .emacs file:

(add-to-list 'tramp-default-proxies-alist 
             '("\\`machine2\\'" 
               nil 
               "/ssh:%u@machine1.abc.def.edu:"))

This is different from the code you found in the forum post in two points:

1. it adds ticks around the target host name (Emacs regexp syntax to avoid matching partial names)
2. it uses only the subdomain name in the target host (you reported in a comment below that you cannot ssh to machine2 when you use the full domain name)

Does that help when you try to access a file on machine2?