whats proxy server

Article Title: Using Linux iptables for proxy server and firewall configuration (2 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 5. cache proxy squid 1) Installation Package Squid-2.5.STABLE1-2 2) Main configuration file

1. Proxy Server is between the Internet and the intranet computer, its function is to replace the intranet computer to access the Internet information. Multiple intranet computers can access the Internet through the same extranet IP;2. The working process of the proxy server:(1) the client host sends a request to the

# Include "stdafx. H"# Include "proxy. H"# Include # Include # Include # Include # Ifdef _ debug# Define new debug_new# UNDEF this_fileStatic char this_file [] = _ file __;# Endif //////////////////////////////////////// ///////////////////////////////////// # Define HTTP "http ://"# Define FTP "ftp ://"# Define proxyport 5001 // proxy Port# Define bufsize 10240 // buffer size Cwinapp theapp; Using namespa

1. Virtual Host(1) http/1.1 specification allows a single HTTP server to build multiple Web sites;(2) on the Internet, the domain name through the DNS service mapped to the IP address (domain name resolution) after the visit to the target site, that is, when the request was sent to the server, the IP address is already accessed;(3) If two domain names are deployed on a single

Preface: This document describes how to use squid and squidGuard to configure proxy servers in linux. The www Proxy service is used as an example to describe how to filter harmful sites and restrict users' access to the internet. I. IntroductionSquid is the most popular agent server software in Linux. It has powerful functions and supports proxies for HTTP, FTP,

Before setting up, let's take a look at the characteristics of the proxy server. This is how we understand the proxy server: Assuming that computer A requires computer B data, computer A first with computer C to establish a connection, computer C received a computer A data request, and Computer B to establish a connect

1 forward proxy : Clients cannot access the external Web directly, they need to set up a proxy server in the same network as the client, and the client accesses the external Web through the proxy server (requires proxy

PHP obtains the proxy server ip address used by the user, that is, the real ip address. Using www.phpchina.combbsthread-12239-1-1.html in PHP, use $ _ SERVER [REMOTE_ADDR] to obtain the IP address of the client. However, if the client uses a proxy SERVER to access the obtain

Generally, ArcGIS Server is located on the local network after the Web server. in the production environment, this network is generally kept confidential and located after the firewall, this is one of the reasons why ArcGIS Server does not recommend enabling the firewall on the local network. However, the firewall is not enabled (or the firewall is enabled but po

Nginx | reverse proxy server load balancer | principle and configuration | preliminary study Nginx | reverse proxy server load balancer | principle and configuration | preliminary study Nginx Reverse proxyNginx load balancingUpstreamHttp proxy 192.168.1.10 // B

Description Shadowsocks is a lightweight SOCKS5 agent software, And Hadowsocks-libev is a SOCKS5 agent software based on Shadowsocks protocol, Compared with the original, Hadowsocks-libev program is small, high concurrency, less resource occupancy, cross-platform, fully compatible Shadowsocks protocol. Hadowsocks-libev consists of three modules: Ss-server: Server-side

I. Concepts of reverse proxy and Server Load balancer Before understanding the concepts of reverse proxy and Server Load balancer, we must first understand the concept of a cluster. Simply put, a cluster is a server that does the same thing, such as a web cluster, database c