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
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
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
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
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
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
A firewall on a computer is a software application or hardware device that monitors and controls incoming and outgoing network traffic based on predefined security rules. It acts as a barrier between the computer and external networks (like the internet), filtering data packets to prevent unauthorized access and protect against cyber threats such as hackers, … Read more
ARP, or Address Resolution Protocol, is a network protocol used to map an IP address to a physical MAC address on a local network segment. The purpose of ARP is to facilitate communication between devices within the same network by resolving IP addresses to MAC addresses, which are essential for data transmission at the data … Read more
MPLS, or Multi-Protocol Label Switching, is a networking technology used to efficiently direct data packets along a network using labels. These labels replace traditional IP routing tables, enabling faster and more scalable packet forwarding based on label information rather than IP addresses. MPLS works by assigning labels to data packets at the ingress router when … Read more
SCTP, or Stream Control Transmission Protocol, is a transport layer protocol like TCP, designed for reliable and ordered delivery of data. It supports multiple streams of data within a single connection, providing features like message framing, congestion control, and error detection. Unlike TCP, SCTP can transmit multiple streams of data simultaneously within a single connection, … Read more