What do win7 firewall [outbound] and [inbound] rules mean?

Outbound means that the software on your computer sends a request to the outside, and inbound is in response to the request from the software.

Win7 Firewall inbound rules: rules for other computers to access their own computers

Win7 Firewall outbound rules: rules for your own computer to access other people's computers.

For example, to open tcp port 443, the steps are as follows:

1. Click start-Control Panel

2. Point system and security

3. Point Windows Firewall

4. Click Advanced Settings

5. Click inbound rule, click New Rule

6. Select the port and click next.

7. Select TCP

Select a specific local port: enter 443 and click next

8. Select allow connection and click next

9. Select all and click next

10. Enter the port name and click finish.

11. Then select the outbound rule, click New Rule, and the operation is the same as above.