cybersecurity-24weeks/v3.0-Curriculum/1-Lesson-Plans/10-Cryptography/3/activities/02_Cryptography_Refresher/solved/readme.md at Main · coding-boot-camp/cybersecurity-24weeks

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• loads all the current rules without stopping the firewall

• We need to open ports

• we will enable UFW and set up rules

• command option changes configuration back to the defaults

• UFW isn't started by default, so administrators have to enable it themselves

• Point out that

• next we need to enable UFW to start

• we need to check the status of the firewall again, now that it's enabled

• Run the following commands

• denying traffic by default breaks networked applications, since it prevents them from sending or receiving data

• we'll need to explicitly allow traffic to and from ports

• Now, let's check the status of the firewall again

• Note: IPv6 traffic is identified with

• Explain that port

• was not one of the ports that we decided to use in our scenario

• check the status of the firewall again to make sure our changes took effect

• you can delete firewall rules when they are no longer needed

• check the firewall status again to ensure our changes have taken effect

• there's another command we can use that displays more information about the status of the UFW firewall

• When troubleshooting firewall rules, sometimes it's helpful to completely stop it and restart it