by Robert Hashemian
TCP/IP Port ScannerWhat is the TCP/IP port (network port) scanner?
Type in the node/server/host name or IP address, and specify a range or list of port numbers (maximum 10) to scan,
then hit 'Scan Ports' to get the info while online.
Computers connected to the Internet predominantly communicate with each other using the TCP/IP protocol. Port numbers are addresses by which applications can locate each other once the computers establish network connection.
Port Scanner attempts to connect to the server and listen on the specified TCP port numbers.
A report is produced displaying the results of the scan.
Use this tool to inspect your own computer's TCP/IP ports and see what open network ports hackers might discover on your machine. It is also a good troubleshooting tool for making sure desired network ports can be accessed externally.
To facilitate your inspection, use the 'netstat -a' command from a shell or a command (cmd) window on your computer, and make note of the ports that are in a LISTEN state. Check those ports first with this tool, as they are good candidates for a potential invader to gain access. You can also use the old reliable telnet program to check for open ports. For instance, to test port 80 (default HTTP port) on your server, issue the command telnet your-host 80 and see if it responds.
Note: Using this service for illegal, immoral, or unethical activities such as hacking is strictly prohibited.
Have a comment about the TCP/IP port scanner?
Liked this page? Donate and support the effort.
Read Financial Markets | Home | Blog | Web Tools | News | Articles | FAQ | About | Contact
© 2001-2014 Robert Hashemian
Apple iPad Air 32GB Wi-Fi
GoPro Hero3+ Plus Black Edition Adventure 1080P HD Camcorder w/ Wi-Fi CHDHX-302
Canon 24-105mm f/4L IS USM Lens
Kitchenaid 6QT Pro 600 Large Capacity Stand Mixer Nickel Pearl or Red KP26M1X
Black/Chrome Storage Rack 4-Tier Organizer Kitchen Shelves
Acer Aspire 15.6" Notebook
Apple iPhone 5S 32GB