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#Iot ssh tunnel how to#
#Iot ssh tunnel for mac#
#Iot ssh tunnel install#

What is the Cloud Remote Access Feature?.So the following questions should be addressed in this article:

#Iot ssh tunnel how to#

Since then I received a lot of requests on how to use it in detail and decided to write another knowledge base article going into detail and covering all of the requests I received. list-connections.Last year, I published an article roughly describing the Cloud Remote Access Feature of Cumulocity IoT. Simply:Īll thats left is to logon to your server: ssh which of your project’s remote units are active. We want this script to run all the time so that we don’t lose connection to the server.Then run the script once from the command-line to allow you to accept the server’s SSH key:.If(iEUID = 0 || substr(iCurrentPort, 0, 3) = iEUIDPrefix) :localhost:22 ] thenĮcho "Tunnel to the server created successfully"Įcho "An error occurred creating a tunnel to the server. # If root, or port-prefix matches, note the port # Extract the processes EUID, then create a prefix-version The following script allowed us to see, at a glance, the status of each connection within a project. Each lamp post would setup a reverse-tunnel on a port of + (e.g.Each of up to nine lamp posts within a deployment had an ID (e.g.Each deployment (henceforth referred to as “projectname”) has a user-account with a specific user-ID (e.g.We had eight lamp posts within the project and, at the time our server was setup, we were also considering additional deployments because we wanted to keep them separated, we came up with the following convention: If there isn’t one already, create a blank SSH config file (used later) and alter its permissions:Ĭhown root:ssh-vpn-tunnels /root/.ssh/config.Alter the ownership and permissions of root’s directories:.Create a new group to collect all the VPN-tunnels and permissions:.Add the the following lines to the file:.Alter the SSH daemon’s config file to harden it a little:.This ensures that you will not be locked out of the system: Add your remote IP address to the SSHGuard’s whitelist.

#Iot ssh tunnel install#

Install SSHGuard to help protect your instance:.

For the Amazon Instance created above, this should simply be a case of running the following having SSH’d in: sudo -i To setup the Tunnel system you’ll need to run all of the following as the root user.

You are now connected to your Amazon EC2 Server!.

Type the following in below anything else in the file don’t forget to substitute IPAddress for your instance’s IP, noted above:.

Mv ~/Downloads/awspemkey.pem ~/.ssh/AWSKEYS/ pem key, downloaded above, to this folder:

#Iot ssh tunnel for mac#

The following is for Mac OS/X, but there are usually plenty of documentation/guides available on the web for you to use your favourite client…

To connect to your instance you will need to configure some SSH settings on your computer.

Make a note of the public IP address of your instance.

Give the permissions key a Name: awspemkey then download.

Choose HTTP again, change its source to My IP.

However, change its source to My IP from the drop down box

By default there will be an SSH rule added.

On the dashboard, click Launch a New Instance.

If you already have a suitable server (with root access), you can skip ahead to the next section. To setup an Amazon Server, follow the guide below. This post will provide step-by-step instruction of how to setup your own Reverse SSH Tunnel server using an Amazon AWS Server. Crucially, if someone got hold of the device and hacked into the SSH tunnel, they wouldn’t be able to get onto our networks: the tunnel is a dead-end. Our solution was to create a Reverse SSH Tunnel system where the lamp heads phoned home to a server on our network, allowing us control over the lamphead’s computer from our office. Normally, if you want to communicate to a remote computer on a standard network, you would first find its IP address and then SSH into the unit: ssh 3G dongles do not allow you to connect to them via their public IP Address as they are hidden behind a firewall, rendering this method useless. To complicate matters further, our only potential method of communicating to the lamp heads was through a 3G dongle. However, we had no real way of affecting or altering the software. We did have the option of calling out the ever-helpful SSE to have a look inside the lamp heads.