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Mahi
5 pts.
 A simple port scanner
FTP, HTTP, Port scanner
I want a simple port scanner which display the open ports and their purpose of all the systems that are up in a LAN.

Software/Hardware used:
ASKED: March 15, 2008  7:38 AM
UPDATED: March 17, 2008  12:55 PM
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Answer Wiki:
There is no guarantee that specific ports are used for specific things. While port 80 is usually used for web site traffic, there is no guarantee that it's used for web site traffic. Any application can be configured to use any port number. There are some basic ports to be aware of. 21 - FTP 22 - FTP Data Transfers 22 - SSH 23 - Telnet 25 - SMTP 53 - DNS 110 - POP3 137-139 - Windows File Shares 80 - HTTP 443 - HTTPS 1433 - SQL Server 1521 - Oracle 3389 - RDP A very complete list of port numbers can be found <a href="http://www.iana.org/assignments/port-numbers">here</a>. GFI appears to have a <a href="http://www.gfi.com/lannetscan/">network port scanner</a>.
Last Wiki Answer Submitted:  March 15, 2008  9:11 am  by  Denny Cherry   64,520 pts.
All Answer Wiki Contributors:  Denny Cherry   64,520 pts.
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My favorite is Angry IP Scanner (http://www.angryziber.com/w/Home). It will identify all the devices on your LAN as well as scan ports.

Hadden
 30 pts.
 

SuperScan by Foundstone is a simple network scanner that is a self-contained executable. You can get it from http://www.foundstone.com/us/resources/proddesc/superscan4.htm.

Wrobinson
 5,610 pts.