Linux11 Proxy Server

IP addresses are 32-bit numbers that uniquely identify devices on a network. They allow for file transfers and email communication using the Internet Protocol. There are five classes of IP addresses - A, B, C, D, and E - which are divided into ranges to define large, medium, and small networks. Users can determine the IP address of their own device or other computers and websites using commands like ipconfig and ping.

The document discusses proxy servers, specifically HTTP and FTP proxy servers. It defines a proxy server as a server that acts as an intermediary for requests from clients to other servers. It describes the main purposes of proxy servers as keeping machines behind it anonymous for security purposes and speeding up access to resources via caching. It also provides details on the mechanisms, types, protocols (HTTP and FTP), and functions of proxy servers.

TCP and UDP are transport layer protocols used for data transfer in the OSI model. TCP is connection-oriented, requiring a three-way handshake to establish a connection that maintains data integrity. It guarantees data will reach its destination without duplication but is slower than UDP. UDP is connectionless and used for applications requiring fast transmission like video calls, but does not ensure packet delivery and order. Both protocols add headers to packets with TCP focused on reliability and UDP on speed.

The document discusses Wireshark, an open source network packet analyzer software. It can be used for network troubleshooting, monitoring network traffic and analyzing protocol behavior. Key features include live packet capture from network interfaces, detailed packet display, capture file import/export and many filtering options. While useful for security, development and learning, it does not actively manipulate network traffic or detect intrusions. It requires a supported network card and is available for Windows, Mac and various Linux/Unix systems.

This document provides an overview of remote access service (RAS) including its types, components, supported clients, connection types, protocols, and how it works. RAS allows remote users to securely access a corporate network through a remote access server. It describes two main types of RAS - dial-up, which uses analog phone lines, and VPN access, which creates a secure connection over the internet. The document also outlines the various protocols and components involved in establishing and maintaining remote connections.

Introduction,representation working of IP classful architecture static dynamic Ip IPV6 introduction

- Basics of Routing - Static Routing/Dynamic Routing - Classification of Dynamic Routing - Administrative Distance and Metric - Link State Routing and Distance Vector Routing - Routing Information Protocol (RIP) - Enhanced Interior Gateway Routing Protocol (EIGRP) - Open Shortest Path First (OSPF)

Network Protocol and TCP/IP Presented by Bwsrang Basumatary & Dashrath Singh Nag TISS, Mumbai, MLISc. Sem -III, 2015

Cisco Networking ppt, ppt contains an upperview of cisco packet tracer and how to create to create a network in it.

An Internet service provider (ISP, also called Internet access provider) is a business or organization that offers users access to the Internet and related services. Many but not all ISPs are telephone companies or other telecommunication providers. They provide services such as Internet access, Internet transit, domain name registration and hosting, dial-up access, leased line access and colocation. Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.

This document provides an overview of basic switching concepts and Cisco switch configuration. It explains Ethernet and how switches work to segment networks and reduce collisions. Switches operate at the data link layer and learn MAC addresses to forward frames efficiently. The document discusses switch configuration using commands like hostname, interface, duplex, and port security. It compares switching methods like store-and-forward and cut-through forwarding. The summary reiterates how switches divide collision domains to improve performance over shared-medium Ethernet.

it contains computer network definition & it's examples,advantages of networking,types of network,network architecture,network topologies and network security.

This document summarizes and compares common network devices: hubs, switches, and routers. It explains that hubs broadcast all data to all ports, wasting bandwidth, while switches learn MAC addresses to send data only to the targeted port. Routers connect different networks and route packets between them, allowing communication across the internet.

The document presents a machine learning-based approach for detecting phishing websites. It proposes using URL obfuscation, third-party service, and hyperlink-based features to train a random forest classifier. The random forest algorithm achieved 99.31% accuracy at classifying websites as legitimate or phishing. Principal component analysis was also applied to further improve the model to 99.55% accuracy. However, the approach is limited as it cannot analyze websites using captcha verification before loading. The quality and size of the training data also impacts the model performance.

Although the OSI reference model is universally recognized, the historical and technical open standard of the Internet is Transmission Control Protocol / Internet Protocol (TCP/IP). The TCP/IP reference model and the TCP/IP protocol stack make data communication possible between any two computers, anywhere in the world, at nearly the speed of light.