Ssh Agent Config

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Ssh (1) obtains configuration data from the following sources in the following order: 1. Command-line options 2. User's configuration file (/.ssh/config) 3. System-wide configuration file (/etc/ssh/sshconfig) For each parameter, the first obtained value will be used. The sshdconfig file is an ASCII text based file where the different configuration options of the SSH server are indicated and configured with keyword/argument pairs. Arguments that contain spaces are to be enclosed in double quotes ('). In the sshdconfig file the keywords are case-insensitive while arguments are case-sensitive. The sshconfig client configuration file has the following format. Both the global /etc/ssh/sshconfig and per-user /ssh/config have the same format. Empty lines and lines starting with '#' are comments. Each line begins with a keyword, followed by argument (s). I would like to login to a remote server by executing sth. Like ssh remoteServer. The remote server can only be reached via a login server (which there are two of).There are two routes I would li.

  1. Ssh Agent Configuration
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Secure Shell (SSH) allows you to remotely administer and configure your Windows IoT Core device

Using the Windows 10 OpenSSH client

Important

The Windows OpenSSH client requires that your SSH client host OS is Windows 10 version 1803(17134). Also, the Windows 10 IoT Core device must be running RS5 Windows Insider Preview release 17723 or greater.

The OpenSSH Client was added to Windows 10 in 1803 (build 17134) as an optional feature. To install the client, you can search for Manage Optional Features in Windows 10 settings. If the OpenSSH Client is not listed in the list of installed features, then choose Add a feature.

Next select OpenSSH Client in the list and click Install.

To login with a username and password use the following command:

Where host is either the IP address of the Windows IoT Core device or the device name.

The first time you connect you see a message like the following:

Type yes and press enter.

Ssh

If you need to login as DefaultAccount rather than as administrator, you will need to generate a key and use the key to login. From the desktop that you intend to connect to your IoT Device from, open a PowerShell window and change to your personal data folder (e.g cd ~)

Register the key with ssh-agent (optional, for single sign-on experience). Note that ssh-add must be performed from a folder that is ACL'd to you as the signed-in user (BuiltinAdministrators and the NT_AUTHORITYSystem user are also ok). By default cd ~ from PowerShell should be sufficient as shown below.

Agent

Tip

If you receive a message that the ssh-agent service is disabled you can enable it with sc.exe config ssh-agent start=auto

Example

To enable single sign, append the public key to the Windows IoT Core device authorized_keys file. Or if you only have one key you copy the public key file to the remote authorized_keys file.

If the key is not registered with ssh-agent, it must be specified on the command line to login:

If the private key is registered with ssh-agent, then you only need to specify DefaultAccount@host:

The first time you connect you see a message like the following:

Type yes and press enter.

You should now be connected as DefaultAccount

To use single sign-on with the administrator account, append your public key to c:dataProgramDatasshadministrators_authorized_keys on the Windows IoT Core device.

You will also need to set the ACL for administrators_authorized_keys to match the ACL of ssh_host_dsa_key in the same directory.

To set the ACL using PowerShell

Note

If you see a REMOTE HOST IDENTIFICATION CHANGED message after making changes to the Windows 10 IoT Core device, then edit C:Users<username>.sshknown_hosts and remove the host that has changed.

See also: Win32-OpenSSH

Using PuTTY

Download an SSH client

In order to connect to your device using SSH, you'll first need to download an SSH client, such as PuTTY.

Connect to your device

  • In order to connect to your device, you need to first get the IP address of the device. After booting your Windows IoT Core device, an IP address will be shown on the screen attached to the device:

  • Now launch PuTTY and enter the IP address in the Host Name text box and make sure the SSH radio button is selected. Then click Open.

  • If you're connecting to your device for the first time from your computer, you may see the following security alert. Just click Yes to continue.

  • If the connection was successful, you should see login as: on the screen, prompting you to login.
    Enter Administrator and press enter. Then enter the default password p@ssw0rd as the password and press enter.

    If you were able to login successfully, you should see something like this:

Update account password

It is highly recommended that you update the default password for the Administrator account.

To do this, enter the following command in the PuTTY console, replacing [new password] with a strong password:

Configure your Windows IoT Core device

  • To be able to deploy applications from Visual Studio 2017, you will need to make sure the Visual Studio Remote Debugger is running on your Windows IoT Core device. The remote debugger should launch automatically at machine boot time. To double check, use the tlist command to list all the running processes from PowerShell. There should be two instances of msvsmon.exe running on the device.

  • It is possible for the Visual Studio Remote Debugger to time out after long periods of inactivity. If Visual Studio cannot connect to your Windows IoT Core device, try rebooting the device.

  • If you want, you can also rename your device. To change the 'computer name', use the setcomputername utility:

You will need to reboot the device for the change to take effect. You can use the shutdown command as follows:

Commonly used utilities

Ssh Agent Configuration

See the Command Line Utils page for a list of commands and utilities you can use with SSH.