Network Diagnosis

Commands

nslookup: to perform a DNS lookup
```
$ nslookup google.com    
```
* netstat: to get statistics for network ports and shows port availability
```
# to list all TCP ports
$ netstat -at
```
* traceroute: to track the route that packets take to reach a destination on a TCP/IP network
```
$ sudo traceroute -T www.google.com
```