What is a WAN wide area network?

A WAN (Wide Area Network) is a telecommunications network that extends over a large geographic area, such as a city, country, or even worldwide. It connects multiple smaller networks, like local area networks (LANs) or metropolitan area networks (MANs), allowing them to communicate and share resources over long distances. A wide area network (WAN) refers … Read more

What is the IDS method of detection?

Intrusion Detection System (IDS) methods of detection primarily involve monitoring network traffic or system activities to identify potential security breaches or malicious activities. One method commonly used by IDS is signature-based detection. This technique involves comparing observed events or patterns in network traffic or system logs against known signatures or patterns of known attacks or … Read more

What is LAN in Wi Fi?

LAN in Wi-Fi refers to a Local Area Network that utilizes Wi-Fi technology for wireless communication between devices within a limited area, such as a home, office, or public hotspot. In this context, LAN refers to the network of devices connected wirelessly via Wi-Fi access points. The use of LAN in Wi-Fi enables devices like … Read more

What is the LAN area network?

The LAN (Local Area Network) area network refers to a network that covers a small geographical area, typically within a single building or campus. It connects computers, servers, printers, and other devices to facilitate communication and resource sharing among users. The LANs area refers to the coverage area of multiple LANs (Local Area Networks) within … Read more

What is a virtual private network VPN?

A Virtual Private Network (VPN) is a technology that creates a secure and encrypted connection over a public network, typically the internet, allowing users to access resources and transmit data securely as if they were directly connected to a private network. VPNs achieve this by encrypting data traffic between the user’s device and a remote … Read more

What is the proxy server?

A proxy server acts as an intermediary between a user’s device and the internet. When a user sends a request to access a website or service, the request first goes to the proxy server, which then forwards it to the destination. The response from the destination is returned to the proxy server, which forwards it … Read more

What is LDAP where it is used?

LDAP, or Lightweight Directory Access Protocol, is a protocol used for accessing and managing directory information services over a network. It provides a hierarchical structure for organizing and storing information about users, groups, devices, and other network resources. LDAP is commonly used as a centralized directory service in enterprise environments, educational institutions, government agencies, and … Read more

What are the advantages of a firewall?

Firewalls offer several advantages in network security by controlling and monitoring incoming and outgoing network traffic based on predetermined security rules. They provide: Enhanced Security: By filtering network traffic, firewalls prevent unauthorized access to sensitive data and protect against various cyber threats such as malware, viruses, and hacking attempts. Access Control: Firewalls enforce access policies, … Read more

What is ARP in the OSI model?

ARP, Address Resolution Protocol, operates at the Data Link layer (Layer 2) of the OSI model. It is responsible for resolving IPv4 addresses to MAC addresses within a local network segment. ARP allows devices on a network to discover each other’s MAC addresses based on their IP addresses, enabling efficient communication between devices at the … Read more

What is firewall and its types?

Firewalls are security devices or software designed to monitor and control incoming and outgoing network traffic based on predetermined security rules. They act as a barrier between trusted internal networks and untrusted external networks (like the internet), preventing unauthorized access and protecting against various cyber threats. Firewalls can be categorized into several types based on … Read more