kubectl get nodes
watch kubectl get nodes
kubectl describe node master
kubectl cluster-info
kubectl cluster-info dump
vagrant@contrib-jessie:~$ nmap localhost
Starting Nmap 6.47 ( http://nmap.org ) at 2017-05-24 15:44 GMT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00018s latency).
Other addresses for localhost (not scanned): 127.0.0.1
Not shown: 996 closed ports
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
111/tcp open rpcbind
8080/tcp open http-proxy
Nmap done: 1 IP address (1 host up) scanned in 0.05 seconds
vagrant@contrib-jessie:~$ kubectl get node
NAME STATUS AGE
10.10.0.2 Ready 135d
...