Connecting to a virtual machine via OS Login

To connect to a VM instance via OS Login with an SSH key using a standard SSH client:

1. Enable access via OS Login at the organization level.

   To connect to a VM via OS Login using an SSH certificate, enable Access via OS Login using SSH keys.

   To add an SSH key to an organization user profile, enable Allow members to use their own SSH keys.

2. Create an SSH key pair and add the public key to the OS Login profile of a user or service account. Remember where your private key is stored, as you will need it to connect to a VM.

3. Get the ID of the organization which contains the required OS Login profile of a user or service account:

   yc organization-manager organization list
   

   Result:

   +----------------------+-------------------------+-------------------------+
   |          ID          |          NAME           |          TITLE          |
   +----------------------+-------------------------+-------------------------+
   | bpf1smsil5q0******** | sample-organization1    | Organization 1          |
   | bpf2c65rqcl8******** | sample-organization2    | Organization 2          |
   | bpf6dne49ue8******** | sample-organization3    | Organization 3          |
   +----------------------+-------------------------+-------------------------+
   

4. Get a list of logins in the OS Login profiles of an organization's users and service accounts by specifying its ID:

   yc organization-manager os-login profile list \
     --organization-id <organization_ID>
   

   Result:

   +----------------------+----------------------+-----------+----------------------+----------------------+------------+
   |          ID          |        LOGIN         |    UID    |   ORGANIZATION ID    |      SUBJECT ID      | IS DEFAULT |
   +----------------------+----------------------+-----------+----------------------+----------------------+------------+
   | aje1eb5qm7jb******** | yc-sa-my-service-acc | 487816044 | bpfaidqca8vd******** | ajevnu4u2q3m******** | true       |
   | ajegs81t2k9s******** | user1                | 760684761 | bpfaidqca8vd******** | aje7b4u65nb6******** | true       |
   | ajej57b2kf0t******** | user2                |      1011 | bpfaidqca8vd******** | ajei280a73vc******** | true       |
   +----------------------+----------------------+-----------+----------------------+----------------------+------------+
   

   Save the LOGIN field value for the required user or service account: you will need it later.

5. Get a list of all VMs in the default folder:

   yc compute instance list
   

   Result:

   +----------------------+-----------------+---------------+---------+---------------+--------------+
   |          ID          |       NAME      |    ZONE ID    | STATUS  |  EXTERNAL IP  | INTERNAL IP  |
   +----------------------+-----------------+---------------+---------+---------------+--------------+
   | fhm0b28lgf********** | first-instance  | ru-central1-a | RUNNING | 158.160.**.** | 192.168.0.8  |
   | fhm9gk85nj********** | second-instance | ru-central1-a | RUNNING | 51.250.**.*** | 192.168.0.12 |
   +----------------------+-----------------+---------------+---------+---------------+--------------+
   

   Save the public IP address (the EXTERNAL IP value) of the VM you want to connect to.

6. Connect to the VM:

   ssh -i <path_to_private_SSH_key_file> \
     -l <user_or_service_account_login> <VM_public_IP_address>
   

   Where:

   • <path_to_private_SSH_key_file>: Path to the file containing the private SSH key, e.g., /home/user1/.ssh/id_ed25519.
   • <user_or_service_account_login>: Previously obtained user or service account login, as set in the OS Login profile.
   • <VM_public_IP_address>: VM public IP address you saved earlier.

   You can also see the command for VM connection in the management console. On the Overview page of the VM you need, under Connect to VM, expand the Connect via SSH client section and select the SSH key tab.

   If this is your first time connecting to the VM, you will see an unknown host warning:

   The authenticity of host '158.160.**.** (158.160.**.**)' can't be established.
   ECDSA key fingerprint is SHA256:PoaSwqxRc8g6iOXtiH7ayGHpSN0MXwUfWHk********.
   Are you sure you want to continue connecting (yes/no)?
   

   Type yes in the terminal and press Enter.

To connect to a VM instance via OS Login with an SSH key using the YC CLI:

1. Enable access via OS Login at the organization level.

   To connect to a VM via OS Login using an SSH certificate, enable Access via OS Login using SSH keys.

   To add an SSH key to an organization user profile, enable Allow members to use their own SSH keys.

2. Create an SSH key pair and add the public key to the OS Login profile of a user or service account. Remember where your private key is stored, as you will need it to connect to a VM.

3. View the description of the CLI command to connect to a VM:

   yc compute ssh --help
   

4. Get the ID of the organization which contains the required OS Login profile of a user or service account:

   yc organization-manager organization list
   

   Result:

   +----------------------+-------------------------+-------------------------+
   |          ID          |          NAME           |          TITLE          |
   +----------------------+-------------------------+-------------------------+
   | bpf1smsil5q0******** | sample-organization1    | Organization 1          |
   | bpf2c65rqcl8******** | sample-organization2    | Organization 2          |
   | bpf6dne49ue8******** | sample-organization3    | Organization 3          |
   +----------------------+-------------------------+-------------------------+
   

5. Get a list of logins in the OS Login profiles of an organization's users and service accounts by specifying its ID:

   yc organization-manager os-login profile list \
     --organization-id <organization_ID>
   

   Result:

   +----------------------+----------------------+-----------+----------------------+----------------------+------------+
   |          ID          |        LOGIN         |    UID    |   ORGANIZATION ID    |      SUBJECT ID      | IS DEFAULT |
   +----------------------+----------------------+-----------+----------------------+----------------------+------------+
   | aje1eb5qm7jb******** | yc-sa-my-service-acc | 487816044 | bpfaidqca8vd******** | ajevnu4u2q3m******** | true       |
   | ajegs81t2k9s******** | user1                | 760684761 | bpfaidqca8vd******** | aje7b4u65nb6******** | true       |
   | ajej57b2kf0t******** | user2                |      1011 | bpfaidqca8vd******** | ajei280a73vc******** | true       |
   +----------------------+----------------------+-----------+----------------------+----------------------+------------+
   

   Save the LOGIN field value for the required user or service account: you will need it later.

6. Get a list of all VMs in the default folder:

   yc compute instance list
   

   Result:

   +----------------------+-----------------+---------------+---------+---------------+--------------+
   |          ID          |       NAME      |    ZONE ID    | STATUS  |  EXTERNAL IP  | INTERNAL IP  |
   +----------------------+-----------------+---------------+---------+---------------+--------------+
   | fhm0b28lgf********** | first-instance  | ru-central1-a | RUNNING | 158.160.**.** | 192.168.0.8  |
   | fhm9gk85nj********** | second-instance | ru-central1-a | RUNNING | 51.250.**.*** | 192.168.0.12 |
   +----------------------+-----------------+---------------+---------+---------------+--------------+
   

7. Connect to the VM:

   yc compute ssh \
     --name <VM_name> \
     --identity-file <path_to_private_SSH_key_file> \
     --login <user_or_service_account_login> \
     --internal-address
   

   Where:

   • --name: Previously obtained VM name. You can specify the VM ID instead of its name by using the --id parameter.
   • --identity-file: Path to a private SSH key file, e.g., /home/user1/.ssh/id_ed25519.
   • --login: Previously obtained user or service account login, as set in the OS Login profile. This is an optional parameter. If this parameter is not specified, the connection will use the SSH certificate of the user or service account currently authorized in the YC CLI profile.
   • (Optional) --internal-address: To connect using an internal IP address.

   You can also see the command for VM connection in the management console. On the Overview page of the VM you need, under Connect to VM, expand the Connect via the Yandex Cloud CLI interface section and select the SSH key tab.