Layer 3 hardware

Open ports are network entry points that allow external devices to connect through the Internet. They can be found on computers, servers, and other connected devices. Open ports are used for a variety of purposes, including remote access, data transfer, and online applications. For example, web browsers use open ports to send and receive requests from websites. In terms of cyber security, open ports can create vulnerabilities if not monitored or locked down properly. Attackers can exploit an open port to gain unauthorized access or launch malicious attacks - potentially leading to data theft or damage to systems. To prevent such threats, organizations must ensure they maintain tight control over their open ports and regularly update their systems with the latest security patches. By following these practices, companies can reduce the risk of attack and protect their data from malicious actors.

DNS Filtering is like having a gatekeeper for the internet. It decides which websites you can or cannot visit based on their names. It helps keep bad or unwanted stuff away, making your online experience safer and more in line with the rules.

Software-defined Networking (SDN) is a revolutionary way for networks to be managed and operated. It separates the network control plane from the data forwarding plane, allowing for more flexibility and control. This helps enable automated networking processes, better security measures, and improved performance. SDN is used by organizations that require high levels of agility in their networks, such as those involving large enterprises or cloud computing applications. SDN also benefits cyber security by providing visibility into network traffic and giving administrators more control over how data is routed through the network. This means organizations can better protect themselves from malicious attacks and respond quickly to threats.

802.1x Access Control List (ACL) is a security protocol that enables secure access to networks, devices and applications. It is used to control access by allowing or denying certain types of traffic at the user level. ACLs can be used to identify, authenticate and authorize users, allowing them access only to specific resources they are authorized to use. It helps protect against unauthorized access, data theft and malicious activity on networks. Use of 802.1x ACL provides an extra layer of protection for data and resources within a network environment.