A MAC (Media Access Control) address is primarily used for identifying and communicating with devices within a local network. It serves as a unique identifier assigned to network interfaces, such as Ethernet cards or Wi-Fi adapters, by manufacturers. MAC addresses are used at the data link layer (Layer 2) of the OSI model to facilitate … Read more
The term “default gateway” refers to a network device or router that serves as an access point or intermediary between devices on a local network and external networks, such as the internet. It acts as the gateway through which networked devices can communicate with devices outside their immediate network segment. The default gateway is essential … Read more
The subnet mask for a /25 network is 255.255.255.128. This corresponds to 25 bits allocated for the network portion of the IP address, leaving 7 bits for host addresses within each subnet. This subnet mask effectively divides the IP address space into smaller subnetworks, each capable of accommodating up to 126 usable IP addresses. A … Read more
Commonly used network services encompass a range of functionalities that facilitate communication, resource sharing, and access to information across networks. These services include: Email: Email services enable users to send and receive messages electronically over networks, often using protocols like SMTP (Simple Mail Transfer Protocol) for sending and IMAP/POP3 for receiving emails. Email is widely … Read more
Netstat is used for a variety of network monitoring and diagnostic tasks. One primary use is to display active network connections, both incoming and outgoing, along with corresponding protocol information such as TCP or UDP. This functionality helps administrators and users identify which services are communicating over the network, monitor established connections, and understand the … Read more
Network services encompass a broad range of functionalities provided by computer networks to facilitate communication, resource sharing, and access to distributed resources. These services play crucial roles in enabling users and devices to interact, collaborate, and access information across networks. Some key functions of network services include: Communication: Network services enable users to communicate and … Read more
A subnet works by dividing a larger network into smaller, more manageable segments. Each subnet operates as a distinct network within the larger network, with a unique range of IP addresses. Devices within the same subnet can communicate directly with each other, while communication between different subnets requires routing. Subnetting involves creating subnet masks to … Read more
Zero Trust and VPN are both approaches to securing network communications but differ significantly in their principles and implementation: Zero Trust focuses on the principle of not trusting any entity or device by default, whether inside or outside the network perimeter. It assumes that threats could originate from both internal and external sources and requires … Read more
Benefits of Zero Trust Network: Zero Trust networks offer several benefits, including enhanced security, improved visibility, and better control over network access. By implementing strict authentication and authorization measures for every user, device, and application attempting to access network resources, Zero Trust reduces the risk of unauthorized access and potential breaches. It promotes a proactive … Read more
Main Goal of Zero Trust: The main goal of Zero Trust is to enhance network security by challenging the traditional security model that assumes trust based on network location or perimeter defenses. Instead of implicitly trusting devices and users inside a defined network perimeter, Zero Trust promotes the concept of “never trust, always verify.” This … Read more