Network Port Scanner

• Accept host and port range as input
• Check each port using sockets
• Display open ports with service names
• Use threading to speed up scanning

Follow these steps in order. Each one builds on the previous.

1. Step 1

   Import socket and threading modules

2. Step 2

   Write a function to test a single port

3. Step 3

   Loop through the port range and test each

4. Step 4

   Add threading to run scans concurrently

5. Step 5

   Map common ports to service names

6. Step 6

   Display results sorted by port number

7. Step 7

   Add input validation for host and port range

• Python socket docs
• Python threading
• OWASP testing guide