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| Introduction to Security Tools: Introduction to Port Scanning | |
| | Lesson | Quiz | Free Tools | |
 | from Tony Bradley, CISSP, your Editor and Guide Port scanning can be used by an attacker to find out which "doors" are open into your network. You can also use port scanning proactively to determine where those holes are and take steps to protect the network. |
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| Lesson | |
| Introduction to Port Scanning | |
| If you're a good guy, port scanning is like checking your doors and windows to make sure they're locked so you can sleep at night. If you're a bad guy, port scanning is like checking the doors and windows on a house to find which ones aren't locked so you can gain entry. | |
| Quiz | |
| Introduction to Port Scanning Quiz | |
| A short quiz to test the information you learned from Introduction to Port Scanning. | |
| Free Tools | |
| Free Port Scanning Tools and Utilities | |
| Freeware tools and utilities you can use to scan your computer or network and determine what ports are open. | |
| Learn Something New Every Day | |
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