Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive
 

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

  1. Create passwords that use unusual characters. eg @ for a, 0 for o, 3 for e, ( for l, etc
  2. Give them to your school friends to guess what they are. eg What is @pp(3       Did you get apple?
  3. Discuss the best passwords to use with your teacher.
 Learn more from wiki about passwords, wiki about firewalls, wiki about passwords
 
Found an error or enhancement? Please fill out this contact us form.