Activate a telnet session

1. login to zipper using telnet
   C:\ telnet zipper.zip.com.au
   Username: zork
   Passwd: saturday     
   
2. cat the list of TCP/IP ports: (press arrow keys for up and down, q to quit)
   $ less /etc/services
   

3. do some nameserver lookups:
   $ nslookup 216.239.32.10
   
   $ nslookup microsoft.com