Squid reverse proxy working principle when a user's browser sends an HTTP request, the request is directed to the reverse proxy server through domain name resolution (if you want to implement reverse proxy for multiple WEB servers, you need to direct the domain names of multiple WEB servers to the reverse
Brief introduction:Squid reverse proxy is often used for server side, Client access Squid Proxy Server 80 port, Squid Proxy Server according to the configuration to request the backend Web server,The requested information is then saved locally and passed back to the client,
Objective:
This paper mainly introduces the use of Squid and Squidguard configuration Proxy server in Linux, with the WWW Proxy service as an example to explain how to filter harmful sites and restrict users ' access to the Internet.
I. INTRODUCTION
Squid is the most popular pro
Common configurations of squid Proxy
Squid. conf is the main configuration file of squid. Common configuration items include:
Http_port 192.168.8.88: 3128
# Specify the listening port and IP address
Cache_mem 64 MB
# Set the memory size used for caching,
# MB can be used to save frequently accessed web pages.
Maximum_o
Install squid proxy server for Linux installation1. Case topology Diagramsystem centos6.5 Software sarg-2.3.7.tar.gz squid-3.4.6.tar.gz650) this.width=650; "style=" Float:none; "title=" Picture 1.png "src=" https://s2.51cto.com/wyfs02/M02/9A/46/ Wkiom1ltlvqs3zkpaaazzye7kyo804.png "alt=" Wkiom1ltlvqs3zkpaaazzye7kyo804.png "/>2. Case Requirements(1) If you need to
As a free network operating system, Linux is more and more popular with the network enthusiasts, the current Internet run a large number of hosts are Linux, and China has to Linux as a government Internet designated network operating system. There are signs that Linux is gradually maturing.
In order to solve the contradiction between the rapid development of Internet and the resource tension of IP address, proxy server is used more and more widely.
A simple record of squid transparent proxy server configuration
Environment: VirtualBox + CentOS 6.0 + squid-3.1.4-1.el6.i686
0, check squid is installed by default, no installation of the first installation
The code is as follows:
[Root@slyar ~]# Rpm-qa Squid
This session explains the common types of proxy serversLearn to build a traditional agent, transparent proxy serviceLearn to configure the access control policy for squid.First, squid service baseworking mechanism of the agent When a client requests a Web page through a proxy, the specified
1. Install squid-2.5Groupadd squidUseradd? G squidRpm? Ivh squid-2.5.STABLE3-3.3E.i386.rpmIi. Configure squid. conf:# Set the proxy port of SQUID (with the IP address added, Squid will not listen to external network interfaces)Htt
squid:squid/data/cache/# squid-z2013/06/12 16:25:14| Creating Swap Directories2013/06/12 16:25:14| /data/cache existsOK, after the initialization is complete, squid can be started:#/etc/init.d/squid StartStarting squid:.Test:1. Use IE to test, set proxy IP and port, open We
In the article "Break through the company network blockade, explore the unlimited network" in the paper, the solution is to use Ccproxy to establish proxy server. Ccproxy is a graphical interface program, the use of relatively simple, but there are two problems: first ccproxy is not free software, unregistered version can provide only 3 connections, the other is from performance or stability is not particularly satisfying.
Later found himself indeed
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Download the squid of windwosnt: HTTP://Squid. acmeconsulting. it/Download/Squid-2.6. Stable13-Bin.zip 1. Put squid-2.6. Stable13-Decompress bin.zip and copy the squid folder
Squid Reverse proxy)Reverse Proxy also provides cache acceleration, but the service object is reversed.Traditional and transparent proxies mostly provide cache proxies for LAN users to access web sites on the Internet;Reverse Proxy, on the contrary, provides cache acceleration for internet users to access web sites in
(CentOS) iptables + squid transparent proxy + Firewall ultimate configuration-Linux Enterprise Application-Linux server application information, the following is a detailed description. Many people are constantly asking iptables + squid to do transparent proxy. I am afraid to give a unified answer here. If you have any
Many people are constantly asking iptables + squid to do transparent proxy. I am afraid to give a unified answer here. If you have any questions, I hope you will give me some comments. Related Resources: man.chinaunix.net, with iptables man in the lower left corner. many people keep asking
Iptables+ Squid is used as a transparent
The reverse proxy can be divided into two types in transmission:
1: Synchronous mode (apache-mod_proxy and squid)
2: asynchronous mode (Lighttpd and nginx)
In the nginx documentation, I mentioned the asynchronous transmission mode and mentioned that it can reduce the number of backend connections and pressure. Why?
Next, let's take a look at the differences between synchronous transmission of tradit
Squid proxy string processing Null Pointer Reference Vulnerability
Release date: 2010-09-03Updated on: 2010-09-07
Affected Systems:Squid Web Proxy Cache 3.2Squid Web Proxy Cache 3.1Squid Web Proxy Cache 3.0Unaffected system:Squid Web Pro
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