You may check whether your PC or device successfully connected to the VPN service, and whether your VMs are up and running, by issuing a ping command. (Please consult or search for instructions on doing this on your specific operating system). Emailed to you are the assigned IP addresses and credentials of your VMs.
ping <ip-address-of-your-server>
If your VMs respond, you may gain access to them via ssh. Windows, MacOS and Linux users can use their respective terminals. To access your Ubuntu VM, on your chosen ssh client, type:
ssh <username>@10.158.wx.yz
e.g. if your EEE account is juan.dela.cruz@eee.upd.edu.ph and you are assigned with the VM IP address of 10.158.91.10 then type ssh juan.dela.cruz@10.158.91.10
then you will be prompted to type your EEEI Gmail account password. Note for security reasons, NO characters will appear as you type your password. Type the password correctly then press ENTER