Firewall:
Acting as a barrier between a trusted network
and other untrusted networks such as the Internet or less-trusted networks such as a retail merchant's network outside of a cardholder data environment a firewall controls access to the resources of a network through a positive
control model. This means that the only traffic allowed onto the network
defined in the firewall policy is; all other traffic is denied.
Types
of the firewall:
- Packet firewalls
- Stateful
firewalls
- Application-layer
firewalls
- Proxy
firewalls
- Firewalls
in the perimeterless age
Acting as a barrier between a trusted network and other untrusted networks such as the Internet or less-trusted networks such as a retail merchant's network outside of a cardholder data environment a firewall controls access to the resources of a network through a positive control model. This means that the only traffic allowed onto the network defined in the firewall policy is; all other traffic is denied.
could you please brief about the firewall.
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