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
POP3, or Post Office Protocol version 3, is a protocol used by email clients to retrieve email messages from a mail server. It operates over TCP/IP networks and allows users to download emails from the server to their local devices for offline access. POP3 operates over TCP (Transmission Control Protocol). TCP ensures reliable communication by … Read more
IMAP, or Internet Message Access Protocol, primarily uses TCP (Transmission Control Protocol) as its transport protocol. TCP ensures reliable and ordered delivery of data packets between the email client and the mail server, which is crucial for the synchronization and management of email messages. IMAP operates exclusively over TCP/IP networks. TCP establishes a connection-oriented session … Read more
A Virtual Private Network (VPN) and a proxy server are both tools used to enhance online privacy and security, but they function differently: A VPN (Virtual Private Network) creates a secure and encrypted connection between a user’s device and a remote server or network over the internet. This secure connection encrypts all data transmitted between … Read more
FTP, or File Transfer Protocol, is a standard network protocol used for transferring files between a client and a server on a computer network. It operates on the application layer of the TCP/IP protocol suite and supports both anonymous and authenticated access. The FTP protocol governs how files are transferred and managed between the client … Read more
FTP, or File Transfer Protocol, is a standard network protocol used for transferring files between a client and a server on a computer network. It provides a straightforward method for users to upload, download, and manage files stored on remote servers. FTP operates on the application layer of the TCP/IP protocol suite and is widely … Read more
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
The secure form of HTTP is HTTPS, which stands for Hypertext Transfer Protocol Secure. It is a protocol for secure communication over a computer network and is widely used on the internet for secure transactions, such as online banking, e-commerce, and sensitive data transfer. HTTPS is the secure version of HTTP, integrating encryption mechanisms to … Read more
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
SFTP, or Secure File Transfer Protocol, is a network protocol that provides secure file access, transfer, and management capabilities over SSH (Secure Shell) connections. Unlike FTP, which operates over plain text channels, SFTP encrypts both commands and data using SSH to ensure confidentiality and integrity during file transfers. SFTP works by establishing an SSH session … Read more