Squid

Name: Squid
Price: 6.51 USD
Availability: InStock
ISBN: 9780596001629

ISBN-10: 0596001622

ISBN-13: 9780596001629

Edition: 2004

Authors: Duane Wessels

List price: $44.95

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Squid is the most popular Web caching software in use today, and it works on a variety of platforms including Linux, FreeBSD, and Windows. Squid improves network performance by reducing the amount of bandwidth used when surfing the Web. It makes web pages load faster and can even reduce the load on your web server. By caching and reusing popular web content, Squid allows you to get by with smaller network connections. It also protects the host on your internal network by acting as a firewall and proxying your internal web traffic. You can use Squid to collect statistics about the traffic on your network, prevent users from visiting inappropriate web sites at work or school, ensure that only…

Book details

List price: $44.95
Copyright year: 2004
Publisher: O'Reilly Media, Incorporated
Publication date: 2/1/2004
Binding: Paperback
Pages: 450
Size: 6.75" wide x 9.00" long x 1.25" tall
Weight: 1.584
Language: English



Preface



Introduction


Web Caching


A Brief History of Squid


Hardware and Operating System Requirements


Squid Is Open Source


Squid's Home on the Web


Getting Help


Getting Started with Squid


Exercises



Getting Squid


Versions and Releases


Use the Source, Luke


Precompiled Binaries


Anonymous CVS


devel.squid-cache.org


Exercises



Compiling and Installing


Before You Start


Unpacking the Source


Pretuning Your Kernel


The configure Script


Make


Make Install


Applying a Patch


Running configure Later


Exercises



Configuration Guide for the Eager


The squid.conf Syntax


User IDs


Port Numbers


Log File Pathnames


Access Controls


Visible Hostname


Administrative Contact Information


Next Steps


Exercises



Running Squid


Squid Command-Line Options


Check Your Configuration File for Errors


Initializing Cache Directories


Testing Squid in a Terminal Window


Running Squid as a Daemon Process


Boot Scripts


A chroot Environment


Stopping Squid


Reconfiguring a Running Squid Process


Rotating the Log Files


Exercises



All About Access Controls


Access Control Elements


Access Control Rules


Common Scenarios


Testing Access Controls


Exercises



Disk Cache Basics


The cache_dir Directive


Disk Space Watermarks


Object Size Limits


Allocating Objects to Cache Directories


Replacement Policies


Removing Cached Objects


refresh_pattern


Exercises



Advanced Disk Cache Topics


Do I Have a Disk I/O Bottleneck?


Filesystem Tuning Options


Alternative Filesystems


The aufs Storage Scheme


The diskd Storage Scheme


The coss Storage Scheme


The null Storage Scheme


Which Is Best for Me?


Exercises



Interception Caching


How It Works


Why (Not) Intercept?


The Network Device


Operating System Tweaks


Configure Squid


Debugging Problems


Exercises



Talking to Other Squids


Some Terminology


Why (Not) Use a Hierarchy?


Telling Squid About Your Neighbors


Restricting Requests to Neighbors


The Network Measurement Database


Internet Cache Protocol


Cache Digests


Hypertext Caching Protocol


Cache Array Routing Protocol


Putting It All Together


How Do I ...


Exercises



Redirectors


The Redirector Interface


Some Sample Redirectors


The Redirector Pool


Configuring Squid


Popular Redirectors


Exercises



Authentication Helpers


Configuring Squid


HTTP Basic Authentication


HTTP Digest Authentication


Microsoft NTLM Authentication


External ACLs


Exercises



Log Files


cache.log


access.log


store.log


referer.log


useragent.log


swap.state


Rotating the Log Files


Privacy and Security


Exercises



Monitoring Squid


cache.log Warnings


The Cache Manager


Using SNMP


Exercises



Server Accelerator Mode


Overview


Configuring Squid


Gee, That Was Confusing!


Access Controls


Content Negotiation


Gotchas


Exercises



Debugging and Troubleshooting


Some Common Problems


Debugging via cache.log


Core Dumps, Assertions, and Stack Traces


Replicating Problems


Reporting a Bug


Exercises



Config File Reference



The Memory Cache



Delay Pools



Filesystem Performance Benchmarks



Squid on Windows



Configuring Squid Clients


Index