32 bit number...
Code:
$ nslookup www.unix.com
Server: dslrouter
Address: 192.168.1.1
Non-authoritative answer:
Name: www.unix.com
Address: 81.17.242.186
$
16 bit number...
Code:
$ grep http /etc/services
http 80/tcp www www-http #World Wide Web
https 443/tcp MCom
https 443/udp MCom
