How to mount remote SSHFS via intermediate machine? Tunneling?

ssh mount remote tunnel sshfs

29,753

Solution 1

yeah tunneling. You connect machine B, create local tunnel (-L) to SSHd port of machine A then sshfs to localhost to the port of newly created tunnel.

Solution 2

You can use option ssh_command of sshfs to do the trick:

sshfs ma: /mnt -o ssh_command='ssh -t mb ssh'

Unmount with the usual

fusermount -u /mnt

Sorry this is 7 years late...

Solution 3

This is what works for me on HighSierra 10.13.6, SHFS version 2.5 (OSXFUSE SSHFS 2.5.0) OSXFUSE 3.10.4. FUSE library version: 2.9.7

Based on Rodrigo Farias's answer above + clemisch and Ohad Rubin comments for noting the -J option:

sshfs -p port finalserver_username@finalserver:/path/to/folder/on/finalserver/ /local/mount/point -o ssh_command='ssh -J intermediate_server_username@intermediate_server:port'

29,753

Andrei

Updated on September 17, 2022

Comments

Andrei over 1 year
I would like to mount a remote file system (A) using SSHFS, but sometimes I have IP address, access from which is not allowed. So my plan is to access it via another machine (B) in that network. Do I need to mount A on B and then to mount B (and A) on my local computer? Is there a better way to do it?

Update

Just to clarify the procedure:

First, I make a tunnel
```
ssh -f user@machineB -L MYPORT:machineA:22 -N
```
And then I mount the remote file system
```
sshfs -p MYPORT [email protected]:/myremotepath /mylocalpath
```
Is it correct?

How do I destroy the tunnel when I am done?
- edk almost 14 years
  
  better way to set up tunnel is to have connection to B from GNU screen window using ssh user@machineB -L 2222:machineA:22 -N so you can easily kill it with ^C
Andrei almost 14 years

Is the following command the right way to do that? ssh -f user@machineB -L 25:machineA:25 -N
edk almost 14 years

yes if you have sshd listening to port 25 on machine A. then you'll just have to sshfs -p 25 [email protected]:/path /localpath
Andrei almost 14 years

Aha, so for default ssh setup I need ssh -f user@machineB -L 22:machineA:22 -N, right?
Ohad Rubin almost 6 years

With the new -J option in Openssh 1.1 it is something along: sshfs ma: /mnt -o ssh_command='ssh -J mb'
clemisch almost 5 years

Does this have any benefit vs. using only -o ssh_command="ssh -J machineB" ?
somebadhat about 4 years

If it works for you why do you have to base it on answers and comments?
dcneuro about 4 years

I'm not sure what you mean. The -t options worked on a previous setup, but not on this one. That's what I meant by "works for me on ..". The answer is a combination of the original answer by Rodrigo with the comments from Ohad and Clemisch, hence the attribution.
MRule over 3 years

I wasn't able to get this syntax to work on my particular network configuration, but the -o proxyjump syntax did.
The Doctor about 3 years

Thanks! This was the only solution that worked for me in Catalina.
gview about 3 years

Currently using an old mb pro with Mojave. Used macports to install sshfs. Was able to connect to a server in a VPC going through a gateway box using this method. Thanks!