The commands for installing Squid are different on different Linuxes, but the subsequent setup is the same across all distributions.
Squid is the most popular web (HTTP) proxy server with caching and forwarding, its main application is hiding the IP address of users, as well as caching web pages from the web server to increase the speed of the web server, reduce the response time and reduce the use of network bandwidth. Restricting access to certain resources with flexible configuration options: introducing restrictions only for certain users, on a schedule, requiring authentication, and so on May reduce bandwidth usage (network load) in some cases They have a wide range of purposes, the most popular of which is online anonymity, but there are other ways to use web proxies as well. Web proxies have been around for quite some time and are used by millions of people around the world. See also: Proxy types, how to use proxy, how to check the quality of proxies The proxy server will try to cache new data and will use it for future requests to the same server. The proxy then checks its local disk cache and if the data can be found there, it will return the data to the clientĪnd if they are not already cached, it will make a request on behalf of the client using the proxy IP address (different from the client's one), and then return the data to the client
When a client makes online requests (for example, wants to open a web page), he first connects to the proxy server
In this manual, we will get acquainted with the basics of setting up Squid, that is, we will be able to set up our own proxy server on our server, we will learn how to configure the Squid proxy server to work with multiple IP addresses, we will configure various methods of client authentication, we will learn the nuances of Squid functioning that may have attitude towards anonymity.Ī proxy server is a computer that is used as an intermediary between the client and other servers from which the client can request resources. Possible errors and problems when using a proxy serverġ6.1 Error “The proxy server is refusing connections”ġ6.2 Squid can open websites over HTTP protocol, but cannot open HTTPSġ6.3 Error “Authentication helper program /usr/lib64/squid/basic_ncsa_auth: (2) No such file or directory”ġ6.4 Error “Authentication helper program /usr/lib/squid/basic_ncsa_auth: (2) No such file or directory” 15.9 How to see which IP addresses the Squid proxy is listening onġ5.10 How to make Squid proxy listen on local port onlyġ5.12 How to set up caching in Squid proxyġ5.13 Does Squid support SOCKS4 or SOCKS5ġ5.14 Directives from the minimum recommended configurationġ5.15 How to configure Squid proxy to work with multiple usersġ5.16 Configuring Squid to Work with OpenVPNġ5.17 How to edit the Access denied page in Squid? How to insert custom pictures and mail?ġ5.18 How to set Squid cache manager e-mail?ġ6.
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