The purpose of a reverse proxy is to act as an intermediary server between clients (such as web browsers) and backend servers (such as web servers or application servers). Unlike a forward proxy, which handles requests from clients to access resources on the internet, a reverse proxy manages incoming requests from clients seeking resources hosted … Read more
Switching in a computer network refers to the process of forwarding data packets between devices within a local area network (LAN). It involves a network switch, which is a hardware device that operates at the data link layer (Layer 2) or network layer (Layer 3) of the OSI model. Switches use MAC addresses or IP … Read more
The advantages of Istio service mesh include enhanced observability, improved traffic management, and robust security features. Istio facilitates comprehensive monitoring and tracing of microservices communication within the mesh, providing insights into performance metrics, error rates, and latency issues. It supports dynamic routing and traffic shaping capabilities, allowing administrators to implement fine-grained traffic management policies such … Read more
The basics of a firewall involve its role as a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Firewalls act as barriers between trusted internal networks and untrusted external networks (like the internet), inspecting packets of data and determining whether to allow or block them based … Read more
HTTP (Hypertext Transfer Protocol) and WWW (World Wide Web) are fundamental components of internet communication: HTTP is a protocol used for transmitting and receiving hypertext messages on the internet. It defines how messages are formatted and transmitted, specifying rules for web browsers and servers to exchange information. HTTP enables the retrieval of web pages, images, … Read more
A switch is used in computer networks to connect multiple devices within a local area network (LAN) and facilitate communication between them. Its primary purpose is to manage and direct data traffic by forwarding data packets to their intended destinations based on the MAC addresses of the devices connected to the switch. The purpose of … Read more
The functionality of a service mesh revolves around managing and controlling communication between microservices within a distributed application. Service mesh provides essential capabilities such as service discovery, load balancing, secure communication, and observability. It abstracts network communication complexities from application code, allowing developers to focus on business logic while delegating networking concerns to the service … Read more
NTP measures time in seconds relative to January 1, 1900, in a 64-bit fixed-point format, with the integer part representing the number of seconds and the fractional part representing fractions of a second. NTP stands for Network Time Protocol, which synchronizes timekeeping among a set of distributed time servers and clients. It ensures accurate timekeeping … Read more
A firewall is used as a network security device to monitor and control incoming and outgoing traffic based on predetermined security rules. Its primary purpose is to act as a barrier between trusted internal networks and untrusted external networks (like the internet), inspecting data packets and deciding whether to allow or block them based on … Read more
HTTP (Hypertext Transfer Protocol) and HTTPS (Hypertext Transfer Protocol Secure) are protocols used for transmitting data over the internet, but they differ significantly in terms of security: HTTP is the standard protocol used for transmitting and receiving hypertext messages on the World Wide Web. It operates over TCP/IP and typically uses port 80 for communication. … Read more