Re: Accessing SSH server over VPN
- Date: Wed, 28 Nov 2018 11:38:32 -0500
- From: Dan Ritter <dsr@xxxxxxxxxxxxxxxx>
- Subject: Re: Accessing SSH server over VPN
Piotr Martyniuk wrote:
> I have hardware router which allows to configure VPN. I managed to set
> it up on my laptop (debian Stretch) in the NetworkManager applet. So
> now I can connect from office to outside word using my home router as
> a proxy (when I check my IP it shows the IP of my router).
> I can also connect to one linux desktop machine (debian Jessie),
> however not by VPN, but this is not an issue.
> The issue is that when I connect to my desktop I would like to ssh
> back to my laptop using VPN channel, so I could open the result in the
> local X server. The problem is that I cannot even ssh to my laptop
> when I try to use laptop VPN IP.
> What would I have to check/try in order to resolve the issue?
Let's do a little diagram:
[ laptop 10.0.0.2 ] ------- [ 10.0.0.1 ]
[ House Router ]
[ firewall ]
[ 192.168.0.20 ] => VPN
[ 18.104.22.168 ] => general Internet
and at the office:
[ desktop 192.168.1.7 ] --- [ 192.168.1.1 ]
[ Office Router ]
[ firewall ]
[ 192.168.0.1 ] => VPN
[ 22.214.171.124 ] => general Internet
I made up the IP addresses, but other than that, does this look
If so, you're trying to ssh from 192.168.1.7 to 10.0.0.2. Here's
what needs to happen:
- from your desktop, you need to ssh to 192.168.0.20, the
address that your house router has on the VPN. Ping it.
- what could get in the way? the firewall at the office needs to
allow access to the VPN IP, and specifically for the port that
you are using (default 22)
- the house router needs to accept the SSH connection on the VPN
IP and NAT it over to 10.0.0.2, the laptop.
- the laptop needs to be running sshd, of course.