Chapter 28. Software -Server/Proxy Network

Table of Contents

1. Linux Squid Proxy Server
2. Configure and Optimize
3. Improve performance Using GNU malloc library
4. Compile and Optimize
5. Configurations
6. Configure the /etc/squid/squid.conf file -in httpd-accelerator mode
7. Configure of the /etc/squid/squid.conf file -/proxy-caching mode
8. Configure the /etc/rc.d/init.d/squid script file -/all configurations
9. Configure the /etc/logrotate.d/squid file
9.1. Securing and Immunize Squid
10. Optimizing Squid
10.1. The cachemgr.cgi
11. Netscape Proxies Configuration
12. Installed files

Proxy-servers, with their capability to save bandwidth, improve security, and increase web-surfing speed are becoming more popular than ever. At this time only a few proxy-server programs are available. These proxy-servers have two main drawbacks:

They are commercial.
They don't support ICP, ICP is used to exchange hints about the existence of URLs in neighbor caches .

Squid is the best choice for a proxy-cache server since it is robust, free, and can use ICP features.

Derived from the cached software from the ARPA-funded Harvest research project, developed at the National Laboratory for Applied Network Research and funded by the National Science Foundation, Squid offers high-performance caching of web clients, and also supports FTP, Gopher, and HTTP data objects. It stores hot objects in RAM, maintains a robust database of objects on disk, has a complex access control mechanism, and supports the SSL protocol for proxying secure connections. In addition, it can be hierarchically linked to other Squid-based proxy servers for streamlined caching of pages.