Syllabus
Types of network security measures including; 12 ATAR
- firewalls
- passwords
- physical security
Background
For a network to work correctly, it needs to be secured against attack.
If you have auto login on a device, disable it
Firewall
- can be a server that filters incoming data from blacklisted IP addresses
- can be a proxy server, the gatekeeper for what packets of data get in or out
- can be software on your computer to protect who accesses your computer
- you can ban certain protocols, eg File Transfer Protocol (FTP) which can upload dangerous files to computers
Passwords
- is an access code to get into a computer or device
- better passwords are NOT just dictionary words eg 3nter
- better passwords are longer passwords, the longer the better, eg 15 characters or more will take a long time to crack
- if you have important data, use a strong password
- eg of a strong password; !Liv3@al0velyPlAce = Iliveatalovelyplace = I live at a lovely place
- don't use a password that is a family member or pet
Physical security
- stop anyone from getting into the building
- keep the doors locked
- stop anyone from taking the computer
- use a lock down system with a cable, example shown HERE
For You To Do
- Create passwords that use unusual characters. eg @ for a, 0 for o, 3 for e, ( for l, etc
- Give them to your school friends to guess what they are. eg What is @pp(3 Did you get apple?
- Discuss the best passwords to use with your teacher.
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