What’s a Firewall
A firewall can help protect your computer and data by managing your network traffic. It does this by blocking unsolicited and unwanted incoming network traffic. A firewall validates access by assessing this incoming traffic for anything malicious like hackers and malware that could infect your computer.
A firewall acts as a gatekeeper. It monitors attempts to gain access to your operating system and blocks unwanted traffic or unrecognized sources.
Configure whitelist
A whitelist is a list of your trusted inbound and outbound connections. Whitelisting IP addresses is a manual way to ensure that certain IPs have access to or your computer can access to. To configure a whitelist you’ll need to access to your firewall settings.
You’ll need to create a new rule with the IP addresses that you’ll allow access to or from.
Free Network security course
To learn more about firewalls and access control you can enroll on the free couse Network security from Open University like i did.
