Glossary of Terms

Firewalls

Keyword Definition
Firewall A network security device that monitors and controls incoming and outgoing traffic based on set security rules.
Network Traffic Data packets flowing into and out of a network, which can be monitored and filtered for security purposes.
Packet-Filtering Firewalls These firewalls inspect packets transmitted between networks and use predefined rules to allow or block traffic based on IP addresses, ports, and protocols, providing a basic level of security.
Proxy Firewalls These firewalls act as intermediaries between users and the services they access, offering additional features like content filtering, logging, and anonymity through request and response management.
Regulatory Compliance The adherence to laws, regulations, guidelines, and specifications relevant to an organization’s business processes.
Rule ID A unique identifier for each firewall rule.
Security Rules Predefined criteria that determine how traffic is allowed or denied through a firewall.
Source IP/Range The originating IP address or range from which traffic is allowed or denied.
Stateful Inspection Firewalls These firewalls keep track of active connections and analyze the state of packets within the context of these connections, allowing for more sophisticated filtering compared to simple packet-filtering.