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
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