Fire walls

Fire walls

1. Can be hardware or software based

2. Firewalls work by using a set of rules that get rid of unwanted or suspicious network packets arriving from a remote network

3. Hardware fierwalls exist by sitting in between an external network and an internal connection.

4. Firewalls form the first line of defence in protecting a digital system

5. It stops applicants from sending and/or receiving certain packets of network data.

6. Firewall is a device that protects an IT system(or network) from unauthorised access by blocking "bad" network trafficing

7. A desktop computer can also host its own firewall service , blocking network data traveling in and out

8. Keeping an ACL regular updated is a good way to manage threat data

   • Access control list-creating a set of rules that determin which packets of data are sent and recived

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