Firewalls: Most firewalls today offer a robust security license to enable features on their firewalls. It is important to maintain the license as part of the firewall management for these devices since it's the first line of defense for every business. Most offer features such as stateful packet inspection, client VPN, site-to-site VPN, intrusion prevention, URL filtering, application control, antivirus, and anti-bot protections. Having these services enabled increases your network security.
Stateful Packet Inspection: SPI (Stateful Packet Inspection) evaluates packets based on their relationship to previous packets in the same session. It can detect and prevent certain types of network attacks, including session hijacking, port scanning, and denial-of-service (DoS) attacks.
Client VPN: Allow laptops, tablets, phones, and other devices to securely connect to their network without having to open ports on your firewall. Companies that use open ports like (3389) for remote access leave themselves open for hackers to try and break into their networks and servers.
Site-to-Site VPN: A secure connection over the internet between two or more separate locations. A site-to-site VPN allows for secure communication and data transfer between the connected networks over the internet.
Intrusion prevention (IPS): Intrusion Prevention examines network packets in real-time, inspecting their headers, payloads, and other data to detect suspicious activities. A firewall can block zero-day attacks to help protect its network.
URL Filtering: URL filtering allows an organization to block web access to specific websites or website categories. Using categories you can broadly block things like drugs or social media from the end user so they can stay more productive while at work.
Application Control: Policies that specify which applications are blocked, restricted, or allowed for specific users, user groups, or network devices. These policies can be based on the application's reputation, category, business requirements, or risk level.
Antivirus: Antivirus provides real-time protection by continuously monitoring network traffic and file activities. It can block emerging threats, protecting the system from new and unknown malware. This is your first line of defense for all networks, the desktop antivirus or endpoint security is the second layer of defense.
Anti-bot Protections: Hackers can install bots on compromised computers. This allows attackers to manage and control those compromised servers, desktops, laptops, or other network devices. If a botnet is detected, the firewall can block the connection between compromised systems and the botnet's command-and-control server. This blocks the attacker's control over the bots and limits their ability to carry out malicious activity.