Network Security

Network Security

1. Local area network

   • nodes

2. Wide area network

   • internet

3. firewall

   • a firewall controls what programs have permission to send and receive data packets

4. physical security

   • security not based on security

5. encryption

   • data packets are disguised using a key unique to that data packet

6. Different user access levels

   • E.g.: guest accounts have little to no file access, regular users have normal file access but limited download access

7. passwords

   • a code that the user of a computer/network can set to keep their account safe