DNS name resolution of VM launched on the cloud is defined as:

• resolved name of the VM is « vm-xxyyy », where « xx » and « yyy » are extracted from IP address  « 134.158.xx.yyy »

Example: a VM with IP as « 134.158.74.200 » will have the resolved named « vm-74200 ».

Please note that the name of your VM as provided at launch time is stored in the file « /etc/hostname ». This is different from the DNS resolved name (« vm-xxyyy »), which may lead to some inconstancies. It is under VM owner responsibility to eventually modify the file « /etc/hostname ».