New-AzJitSession

Creates just-in-time network connections for Azure VMs.
The command accepts a VM name (with optional resource group name) or a VM Object,
If the VM isn't started, the command will start it and wait for start-up to complete.
It finds the JIT policy for the machine and address presented by the local machine after any NAT,
and requests a connection for a given port, or for the default ssh, RDP or WinRM port.
Optionally the duration of the connection can be specified, or the command can be told to reuse
an existing request.
It waits until the port appears to be open, and then connects an RDP or PowerShell remoting session;
if ssh is specified PowerShell remoting, or a remote shell or a remote command can be run over the
ssh connection. For remote PowerShell sessions it is possible to enter the session or
invoke a command in the session