Exercise - Test your new virtual machine
When you create a virtual machine, it's assigned a public IP address that's reachable over the internet and a private IP address used within the Azure datacenter. Both of these values appear in the JSON block the create
command returns, like the following:
{
...
"privateIpAddress": "10.0.0.4",
"publicIpAddress": "40.83.165.85",
...
}
Connecting to the VM with SSH
We can quickly test that the Linux VM is up and running by using the public IP address in the Secure Shell (ssh
) tool. Remember that we set our admin name to azureuser
, so we need specify that. Make sure to use the public IP address from your running instance.
ssh azureuser@<public-ip-address>
Note
We don't need a password because we generated an SSH key pair as part of the VM creation. The first time you shell into the VM, you receive a prompt regarding the authenticity of the host.
This is because we are attempting to access an IP address directly instead of through a host name. Answering yes saveS the IP address as a valid host for connection and allows the connection to proceed.
The authenticity of host '40.83.165.85 (40.83.165.85)' can't be established.
RSA key fingerprint is SHA256:hlFnTCAzgWVFiMxHK194I2ap6+5hZoj9ex8+/hoM7rE.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '40.83.165.85' (RSA) to the list of known hosts.
Then, you'll be presented with a remote shell where you can enter Linux commands.
Welcome to Ubuntu 18.04.3 LTS (GNU/Linux 5.0.0-1014-azure x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Wed Aug 21 20:32:04 UTC 2019
System load: 0.0 Processes: 108
Usage of /: 4.2% of 28.90GB Users logged in: 0
Memory usage: 9% IP address for eth0: 10.0.0.5
Swap usage: 0%
0 packages can be updated.
0 updates are security updates.
The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.
azureuser@SampleVM:~$
Try a few commands, such as ps
or ls
, as practice. When you're finished, sign out of the virtual machine by typing exit
or logout
.