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I recently installed an Ubuntu 17.10 Server, with not too much fancy software or customizations.

When I ssh to my machine, it asks for my password. The password prompt has my correct username. When I enter the password, it just keeps waiting forever.

Note that when I deliberately enter a wrong password, it says "Permission denied, please try again" so the checking mechanism is actually working. But upon entering the right password, nothing seems to happen (waits indefinitely, I have to terminate my SSH client).

This has worked fine before, I actually logged in earlier today without problems. I certainly didn't change anything in my configuration, or add any login or startup scripts or anything.

This machine is on a remote physical location, so it would really suck if I have to go there and physically access or reset the machine. Is there any other way to access it?

For example is there a 'recovery login mode' with SSH or something? Or is there a way to make ssh say what it's waiting for (and optionally skip that) after I entered my password?

  • Can you access the machine at all through SSH or via a TTY session? – NerdOfCode Dec 17 '17 at 21:38
  • What do you mean? When I try to access through SSH, the above happens. I'm not sure what TTY is, how do I use that? – RocketNuts Dec 17 '17 at 21:54
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    It's possible that your login has successfully authenticated, but for some reason the remote shell is failing to initialize properly - have you tried typing a simple command such as ls after it gets "stuck"? or starting SSH with an explicit shell command e.g. ssh -t username@server '/bin/dash -i' – steeldriver Dec 17 '17 at 22:00
  • How exactly do ssh to the machine? – derHugo Dec 18 '17 at 6:19
  • @derHugo I just enter ssh username@ipaddress on my own PC (macOs) with the appropriate username and ipaddress for the remove machine – RocketNuts Dec 18 '17 at 23:44

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