How can I have ssh access to multiple machines using ngrok?

mithunm93

9/6/23, 11:41 PM

I've got a couple machines that are often either up or down. When they're up, I want ssh access to them using ngrok. I've set up ngrok on both machines, and their config files look like this:

authtoken: <AUTH_TOKEN>
  tunnels:
    ssh_tunnel:
      proto: tcp
      remote_addr: 3.tcp.ngrok.io:<PORT>
      addr: 22
  version: "2"
  region: us

where <PORT> is different on each machine. I've also got the TCP addresses in ngrok and they show up as "online" when the the corresponding machine is turned on.

My problem is reliably connecting to the machine I want. SSH seems to be unable to distinguish between the two machines when I run this command:

ssh <USER>@3.tcp.ngrok.io -p <PORT>

Often times it automatically connects to a machine I had recently ssh'd into, even though I specified a different port than the one it is running on. I'm occasionally able to remedy this by clearing ~/.ssh/config and ~/.ssh/known_hosts but even this doesn't seem to be a reliable way to get to the machine I want.

What am I doing wrong? Why is ssh not respecting the specified port? Is ngrok sending my requests to the wrong location?

0 + 0

ssh

ssh-tunnel

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How can I have ssh access to multiple machines using ngrok?

TH: ฉันจะเข้าถึง ssh หลายเครื่องโดยใช้ ngrok ได้อย่างไร

RO: Cum pot avea acces ssh la mai multe mașini folosind ngrok?

RU: Как я могу получить доступ по ssh к нескольким машинам, используя ngrok?

VI: Làm cách nào tôi có thể có quyền truy cập ssh vào nhiều máy bằng ngrok?

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