Firewall 101: 6 Ways to Tame the Digital Wildfire (and Keep Your Data Cozy)
From Home to Enterprise: Unleash the Full Power of Firewalls with These 6 Proven Strategies.
Top 6 Firewall Use Cases!
🔹 Port-Based Rules
Firewall rules can be set to allow or block traffic based on specific ports. For example, allowing only traffic on ports 80 (HTTP) and 443 (HTTPS) for web browsing.
🔹 IP Address Filtering
Rules can be configured to allow or deny traffic based on source or destination IP addresses. This can include whitelisting trusted IP addresses or blacklisting known malicious ones.
🔹 Protocol-Based Rules
Firewalls can be configured to allow or block traffic based on specific network protocols such as TCP, UDP, ICMP, etc. For instance, allowing only TCP traffic on port 22 (SSH).
🔹 Time-Based Rules
Firewalls can be configured to enforce rules based on specific times or schedules. This can be useful for setting different access rules during business hours versus after hours.
🔹 Stateful Inspection
Stateful Inspection: Stateful firewalls monitor the state of active connections and allow traffic only if it matches an established connection, preventing unauthorized access from the outside.
🔹 Application-Based Rules
Some firewalls offer application-level control by allowing or blocking traffic based on specific applications or services. For instance, allowing or restricting access to certain applications like Skype, BitTorrent, etc.