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NETWORK SECURITY, Applying Network Security Devices - Coggle Diagram

- - - - A VLAN is heavily dependent upon the switch for correctly directing packets
      - -Attackers could take control of the switch itself, if it has a default or weak password
      - -Specially crafted traffic can also "hop" from one VLAN to another
- - - - -to filter packet
      - -sometime called packet filter
      - -designed to prevent malware enter network
      - -a firewall can be software or hardware based
      - -hardware firewalls usually are located outside the network security perimeter
    - - RULE BASE
      - STATELESS PACKET FILTERING
      - STATEFULL PACKET FILTERING
    - - -Most personal software firewalls today also filter outbound traffic as well as inbound traffic
      - -Filtering outbound traffic protects users by preventing malware from connecting to other computers and spreading
      - -But it annoys them with these alerts
  - - - -Clients never directly connect to the Internet
      - -save bandwitdth
      - -allow company to block forbidden web sites
      - -prevent many attack as NAT does
  - - - Intended to trap or trick attackers
      - -A computer typically located in a DMZ that is loaded with software and data files that appear to be authentic
      - -Yet they are actually imitations of real data files
      - -Three primary purposes of a honeypot:
      - -Deflect attention
      - -Early warnings of new attacks
      - -Examine attacker techniques
  - - - Work to protect the entire network and all devices that are connected to it
      - By monitoring network traffic NIPS can immediately react to block a malicious attack
      - NIPS are special-purpose hardware platforms that analyze, detect, and react to security-related events
      - Can drop malicious traffic based on their configuration or security policy
  - - - URL and content filtering
      - Detailed reporting
      - profiles
      - prohibits file downloads