Squid: The Definitive Guide. The Definitive Guide

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• Squid: The Definitive Guide
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  • Preface
    • About This Book
      • Topics Not Covered
    • Recommended Reading
    • Conventions Used in This Book
    • Comments and Questions
    • Acknowledgments
  • 1. Introduction
    • 1.1. Web Caching
    • 1.2. A Brief History of Squid
    • 1.3. Hardware and Operating System Requirements
    • 1.4. Squid Is Open Source
    • 1.5. Squids Home on the Web
    • 1.6. Getting Help
      • 1.6.1. Frequently Asked Questions
      • 1.6.2. Mailing Lists
        • 1.6.2.1. squid-users
        • 1.6.2.2. squid-announce
        • 1.6.2.3. squid-dev
      • 1.6.3. Professional Support
    • 1.7. Getting Started with Squid
    • 1.8. Exercises
  • 2. Getting Squid
    • 2.1. Versions and Releases
    • 2.2. Use the Source, Luke
    • 2.3. Precompiled Binaries
    • 2.4. Anonymous CVS
    • 2.5. devel.squid-cache.org
    • 2.6. Exercises
  • 3. Compiling and Installing
    • 3.1. Before You Start
    • 3.2. Unpacking the Source
    • 3.3. Pretuning Your Kernel
      • 3.3.1. File Descriptors
        • 3.3.1.1. FreeBSD, NetBSD, OpenBSD
        • 3.3.1.2. Linux
        • 3.3.1.3. Solaris
      • 3.3.2. Mbuf Clusters
      • 3.3.3. Ephemeral Port Range
    • 3.4. The configure Script
      • 3.4.1. configure Options
      • 3.4.2. Running configure
    • 3.5. make
    • 3.6. make Install
    • 3.7. Applying a Patch
    • 3.8. Running configure Later
    • 3.9. Exercises
  • 4. Configuration Guide for the Eager
    • 4.1. The squid.conf Syntax
    • 4.2. User IDs
    • 4.3. Port Numbers
    • 4.4. Log File Pathnames
    • 4.5. Access Controls
    • 4.6. Visible Hostname
    • 4.7. Administrative Contact Information
    • 4.8. Next Steps
    • 4.9. Exercises
  • 5. Running Squid
    • 5.1. Squid Command-Line Options
    • 5.2. Check Your Configuration File for Errors
    • 5.3. Initializing Cache Directories
    • 5.4. Testing Squid in a Terminal Window
    • 5.5. Running Squid as a Daemon Process
      • 5.5.1. The squid_start Script
    • 5.6. Boot Scripts
      • 5.6.1. /etc/rc.local
      • 5.6.2. init.d and rc.d
      • 5.6.3. /etc/inittab
    • 5.7. A chroot Environment
    • 5.8. Stopping Squid
    • 5.9. Reconfiguring a Running Squid Process
    • 5.10. Rotating the Log Files
    • 5.11. Exercises
  • 6. All About Access Controls
    • 6.1. Access Control Elements
      • 6.1.1. A Few Base ACL Types
        • 6.1.1.1. IP addresses
        • 6.1.1.2. Domain names
        • 6.1.1.3. Usernames
        • 6.1.1.4. Regular expressions
        • 6.1.1.5. TCP port numbers
        • 6.1.1.6. Autonomous system numbers
      • 6.1.2. ACL Types
        • 6.1.2.1. src
        • 6.1.2.2. dst
        • 6.1.2.3. myip
        • 6.1.2.4. dstdomain
        • 6.1.2.5. srcdomain
        • 6.1.2.6. port
        • 6.1.2.7. myport
        • 6.1.2.8. method
        • 6.1.2.9. proto
        • 6.1.2.10. time
        • 6.1.2.11. ident
        • 6.1.2.12. proxy_auth
        • 6.1.2.13. src_as
        • 6.1.2.14. dst_as
        • 6.1.2.15. snmp_community
        • 6.1.2.16. maxconn
        • 6.1.2.17. arp
        • 6.1.2.18. srcdom_regex
        • 6.1.2.19. dstdom_regex
        • 6.1.2.20. url_regex
        • 6.1.2.21. urlpath_regex
        • 6.1.2.22. browser
        • 6.1.2.23. req_mime_type
        • 6.1.2.24. rep_mime_type
        • 6.1.2.25. ident_regex
        • 6.1.2.26. proxy_auth_regex
      • 6.1.3. External ACLs
      • 6.1.4. Dealing with Long ACL Lists
      • 6.1.5. How Squid Matches Access Control Elements
    • 6.2. Access Control Rules
      • 6.2.1. Access Rule Syntax
      • 6.2.2. How Squid Matches Access Rules
      • 6.2.3. Access List Style
      • 6.2.4. Delayed Checks
      • 6.2.5. Slow and Fast Rule Checks
    • 6.3. Common Scenarios
      • 6.3.1. Allowing Local Clients Only
      • 6.3.2. Blocking a Few Misbehaving Clients
      • 6.3.3. Denying Pornography
      • 6.3.4. Restricting Usage During Working Hours
      • 6.3.5. Preventing Squid from Talking to Non-HTTP Servers
      • 6.3.6. Giving Certain Users Special Access
      • 6.3.7. Preventing Abuse from Siblings
      • 6.3.8. Denying Requests with IP Addresses
      • 6.3.9. An http_reply_access Example
      • 6.3.10. Preventing Cache Hits for Local Sites
    • 6.4. Testing Access Controls
    • 6.5. Exercises
  • 7. Disk Cache Basics
    • 7.1. The cache_dir Directive
      • 7.1.1. Scheme
      • 7.1.2. Directory
      • 7.1.3. Size
        • 7.1.3.1. Inodes
        • 7.1.3.2. The relationship between disk space and process size
      • 7.1.4. L1 and L2
      • 7.1.5. Options
        • 7.1.5.1. read-only
        • 7.1.5.2. max-size
    • 7.2. Disk Space Watermarks
    • 7.3. Object Size Limits
    • 7.4. Allocating Objects to Cache Directories
    • 7.5. Replacement Policies
    • 7.6. Removing Cached Objects
      • 7.6.1. Removing Individual Objects
      • 7.6.2. Removing a Group of Objects
      • 7.6.3. Removing All Objects
    • 7.7. refresh_pattern
    • 7.8. Exercises
  • 8. Advanced Disk Cache Topics
    • 8.1. Do I Have a Disk I/O Bottleneck?
    • 8.2. Filesystem Tuning Options
    • 8.3. Alternative Filesystems
    • 8.4. The aufs Storage Scheme
      • 8.4.1. How aufs Works
      • 8.4.2. aufs Issues
      • 8.4.3. Monitoring aufs Operation
    • 8.5. The diskd Storage Scheme
      • 8.5.1. How diskd Works
      • 8.5.2. Compiling and Configuring diskd
      • 8.5.3. Monitoring diskd
    • 8.6. The coss Storage Scheme
      • 8.6.1. How coss Works
      • 8.6.2. Compiling and Configuring coss
      • 8.6.3. coss Issues
    • 8.7. The null Storage Scheme
    • 8.8. Which Is Best for Me?
    • 8.9. Exercises
  • 9. Interception Caching
    • 9.1. How It Works
    • 9.2. Why (Not) Intercept?
    • 9.3. The Network Device
      • 9.3.1. Inline Squid
      • 9.3.2. Layer Four Switches
        • 9.3.2.1. Alteon/Nortel
        • 9.3.2.2. Foundry
        • 9.3.2.3. Extreme Networks
        • 9.3.2.4. Cisco Arrowpoint
        • 9.3.2.5. A comment on HTTP servers and health checks
      • 9.3.3. Cisco Policy Routing
      • 9.3.4. Web Cache Coordination Protocol
        • 9.3.4.1. WCCPv1
        • 9.3.4.2. WCCPv2
        • 9.3.4.3. Debugging
    • 9.4. Operating System Tweaks
      • 9.4.1. Linux
        • 9.4.1.1. Linux and WCCP
      • 9.4.2. FreeBSD
        • 9.4.2.1. FreeBSD and WCCP
      • 9.4.3. OpenBSD
        • 9.4.3.1. OpenBSD and WCCP
      • 9.4.4. IPFilter on NetBSD and Others
        • 9.4.4.1. NetBSD and WCCP
    • 9.5. Configure Squid
      • 9.5.1. Configuring WCCPv1
    • 9.6. Debugging Problems
    • 9.7. Exercises
  • 10. Talking to Other Squids
    • 10.1. Some Terminology
    • 10.2. Why (Not) Use a Hierarchy?
    • 10.3. Telling Squid About Your Neighbors
      • 10.3.1. cache_peer Options
      • 10.3.2. Neighbor State
      • 10.3.3. Altering the Relationship
    • 10.4. Restricting Requests to Neighbors
      • 10.4.1. cache_peer_access
      • 10.4.2. cache_peer_domain
      • 10.4.3. never_direct
      • 10.4.4. always_direct
      • 10.4.5. hierarchy_stoplist
      • 10.4.6. nonhierarchical_direct
      • 10.4.7. prefer_direct
    • 10.5. The Network Measurement Database
    • 10.6. Internet Cache Protocol
      • 10.6.1. Being an ICP Server
        • 10.6.1.1. The icp_hit_stale directive
        • 10.6.1.2. The ICP_MISS_NOFETCH feature
        • 10.6.1.3. The test_reachability directive
      • 10.6.2. Being an ICP Client
        • 10.6.2.1. cache_peer options for ICP clients
        • 10.6.2.2. ICP and netdb
      • 10.6.3. Multicast ICP
        • 10.6.3.1. Multicast ICP server
        • 10.6.3.2. Multicast ICP client
        • 10.6.3.3. Multicast ICP example
    • 10.7. Cache Digests
      • 10.7.1. Configuring Squid for Cache Digests
    • 10.8. Hypertext Caching Protocol
      • 10.8.1. Configuring Squid for HTCP
    • 10.9. Cache Array Routing Protocol
      • 10.9.1. Configuring Squid for CARP
    • 10.10. Putting It All Together
      • 10.10.1. Step 1: Determine Direct Options
      • 10.10.2. Step 2: Neighbor Selection Protocols
      • 10.10.3. Step 2a: ICP/HTCP Reply Processing
      • 10.10.4. Step 3: Secondary Parent Selection
      • 10.10.5. Retrying
    • 10.11. How Do I ...
      • 10.11.1. Send All Requests Through Another Proxy?
      • 10.11.2. Send All Requests Through Another Proxy Unless It's Down?
      • 10.11.3. Make Sure Squid Doesn't Use Neighbors for Some Requests?
      • 10.11.4. Send Some Requests Through a Parent to Bypass Local Filters?
    • 10.12. Exercises
  • 11. Redirectors
    • 11.1. The Redirector Interface
      • 11.1.1. Handling URIs That Contain Whitespace
      • 11.1.2. Generating HTTP Redirect Messages
    • 11.2. Some Sample Redirectors
    • 11.3. The Redirector Pool
    • 11.4. Configuring Squid
      • 11.4.1. redirect_program
      • 11.4.2. redirect_children
      • 11.4.3. redirect_rewrites_host_header
      • 11.4.4. redirector_access
      • 11.4.5. redirector_bypass
    • 11.5. Popular Redirectors
      • 11.5.1. Squirm
      • 11.5.2. Jesred
      • 11.5.3. squidGuard
      • 11.5.4. AdZapper
    • 11.6. Exercises
  • 12. Authentication Helpers
    • 12.1. Configuring Squid
    • 12.2. HTTP Basic Authentication
      • 12.2.1. NCSA
      • 12.2.2. LDAP
      • 12.2.3. MSNT
      • 12.2.4. Multi-domain-NTLM
      • 12.2.5. PAM
      • 12.2.6. SASL
      • 12.2.7. SMB
      • 12.2.8. YP
      • 12.2.9. getpwnam
      • 12.2.10. winbind
      • 12.2.11. The Basic Auth API
    • 12.3. HTTP Digest Authentication
      • 12.3.1. password
      • 12.3.2. Digest Authentication API
    • 12.4. Microsoft NTLM Authentication
      • 12.4.1. SMB
      • 12.4.2. winbind
      • 12.4.3. NTLM Authentication API
    • 12.5. External ACLs
      • 12.5.1. ip_user
      • 12.5.2. ldap_group
      • 12.5.3. unix_group
      • 12.5.4. wbinfo_group
      • 12.5.5. winbind_group
      • 12.5.6. Write Your Own
    • 12.6. Exercises
  • 13. Log Files
    • 13.1. cache.log
      • 13.1.1. Debugging Levels
      • 13.1.2. Forwarding cache.log Messages to the System Log
      • 13.1.3. Dumping cache.log Messages to Your Terminal
    • 13.2. access.log
      • 13.2.1. access.log Result Codes
      • 13.2.2. HTTP Response Status Codes
      • 13.2.3. access.log Peering Codes
      • 13.2.4. Configuration Directives That Affect access.log
        • 13.2.4.1. log_icp_queries
        • 13.2.4.2. emulate_httpd_log
        • 13.2.4.3. log_mime_hdrs
        • 13.2.4.4. log_fqdn
        • 13.2.4.5. ident_lookup_access
        • 13.2.4.6. log_ip_on_direct
        • 13.2.4.7. client_netmask
        • 13.2.4.8. strip_query_terms
        • 13.2.4.9. uri_whitespace
        • 13.2.4.10. buffered_logs
      • 13.2.5. access.log Analysis Tools
    • 13.3. store.log
      • 13.3.1. Mapping File Numbers to Pathnames
    • 13.4. referer.log
    • 13.5. useragent.log
    • 13.6. swap.state
    • 13.7. Rotating the Log Files
    • 13.8. Privacy and Security
    • 13.9. Exercises
  • 14. Monitoring Squid
    • 14.1. cache.log Warnings
    • 14.2. The Cache Manager
      • 14.2.1. Cache Manager Pages
        • 14.2.1.1. leaks: Memory Leak Tracking
        • 14.2.1.2. mem: Memory Utilization
        • 14.2.1.3. cbdata: Callback Data Registry Contents
        • 14.2.1.4. events: Event Queue
        • 14.2.1.5. squidaio_counts: Async IO Function Counters
        • 14.2.1.6. diskd: DISKD Stats
        • 14.2.1.7. config: Current Squid Configuration*
        • 14.2.1.8. comm_incoming: comm_incoming( ) Stats
        • 14.2.1.9. ipcache: IP Cache Stats and Contents
        • 14.2.1.10. fqdncache: FQDN Cache Stats and Contents
        • 14.2.1.11. idns: Internal DNS Statistics
        • 14.2.1.12. dns: Dnsserver Statistics
        • 14.2.1.13. redirector: URL Redirector Stats
        • 14.2.1.14. basicauthenticator: Basic User Authenticator Stats
        • 14.2.1.15. digestauthenticator: Digest User Authenticator Stats
        • 14.2.1.16. ntlmauthenticator: NTLM User Authenticator Stats
        • 14.2.1.17. external_acl: External ACL Stats
        • 14.2.1.18. http_headers: HTTP Header Statistics
        • 14.2.1.19. via_headers: Via Request Headers
        • 14.2.1.20. forw_headers: X-Forwarded-For Request Headers
        • 14.2.1.21. menu: This Cache Manager Menu
        • 14.2.1.22. shutdown: Shut Down the Squid Process*
        • 14.2.1.23. offline_toggle: Toggle offline_mode Setting*
        • 14.2.1.24. info: General Runtime Information
        • 14.2.1.25. filedescriptors: Process File Descriptor Allocation
        • 14.2.1.26. objects: All Cache Objects
        • 14.2.1.27. vm_objects: In-Memory and In-Transit Objects
        • 14.2.1.28. openfd_objects: Objects with Swapout Files Open
        • 14.2.1.29. io: Server-Side Network read( ) Size Histograms
        • 14.2.1.30. counters: Traffic and Resource Counters
        • 14.2.1.31. peer_select: Peer Selection Algorithms
        • 14.2.1.32. digest_stats: Cache Digest and ICP Blob
        • 14.2.1.33. 5min: 5 Minute Average of Counters
        • 14.2.1.34. 60min: 60 Minute Average of Counters
        • 14.2.1.35. utilization: Cache Utilization
        • 14.2.1.36. histograms: Full Histogram Counts
        • 14.2.1.37. active_requests: Client-Side Active Requests
        • 14.2.1.38. store_digest: Store Digest
        • 14.2.1.39. storedir: Store Directory Stats
        • 14.2.1.40. store_check_cachable_stats: storeCheckCachable( ) Stats
        • 14.2.1.41. store_io: Store IO Interface Stats
        • 14.2.1.42. pconn: Persistent Connection Utilization Histograms
        • 14.2.1.43. refresh: Refresh Algorithm Statistics
        • 14.2.1.44. delay: Delay Pool Levels
        • 14.2.1.45. forward: Request Forwarding Statistics
        • 14.2.1.46. client_list: Cache Client List
        • 14.2.1.47. netdb: Network Measurement Database
        • 14.2.1.48. asndb: AS Number Database
        • 14.2.1.49. carp: CARP Information
        • 14.2.1.50. server_list: Peer Cache Statistics
        • 14.2.1.51. non_peers: List of Unknown Sites Sending ICP messages
      • 14.2.2. Cache Manager Access Controls
        • 14.2.2.1. http_access
        • 14.2.2.2. cachemgr_passwd
        • 14.2.2.3. cachemgr.cgi
      • 14.2.3. Reasons to Dislike the Cache Manager
      • 14.2.4. Squid-RRD
    • 14.3. Using SNMP
      • 14.3.1. Using snmpwalk and snmpget
      • 14.3.2. The Squid MIB
    • 14.4. Exercises
  • 15. Server Accelerator Mode
    • 15.1. Overview
    • 15.2. Configuring Squid
      • 15.2.1. http_port
      • 15.2.2. https_port
      • 15.2.3. httpd_accel_host
      • 15.2.4. httpd_accel_port
      • 15.2.5. httpd_accel_uses_host_header
      • 15.2.6. httpd_accel_single_host
      • 15.2.7. httpd_accel_with_proxy
    • 15.3. Gee, That Was Confusing!
      • 15.3.1. One Box, One Server Name
      • 15.3.2. One Box, Many Server Names
      • 15.3.3. Many Boxes, One Server Name
      • 15.3.4. Many Boxes, Many Server Names
    • 15.4. Access Controls
    • 15.5. Content Negotiation
    • 15.6. Gotchas
      • 15.6.1. Logging
      • 15.6.2. Ignoring Reloads
      • 15.6.3. Uncachable Content
      • 15.6.4. Errors
      • 15.6.5. Purging Objects
      • 15.6.6. Neighbors
    • 15.7. Exercises
  • 16. Debugging and Troubleshooting
    • 16.1. Some Common Problems
      • 16.1.1. "Failed to make swap directory"
      • 16.1.2. "Address already in use"
      • 16.1.3. "Could not determine fully qualified hostname"
      • 16.1.4. "DNS name lookup tests failed"
      • 16.1.5. "Illegal character in hostname"
      • 16.1.6. "Running out of filedescriptors"
      • 16.1.7. "icmpRecv: Connection refused"
      • 16.1.8. Squid Becomes Slow After Running for Some Time
      • 16.1.9. Debugging Access Controls
    • 16.2. Debugging via cache.log
    • 16.3. Core Dumps, Assertions, and Stack Traces
      • 16.3.1. Can't Find the Core File?
    • 16.4. Replicating Problems
    • 16.5. Reporting a Bug
    • 16.6. Exercises
  • A. Config File Reference
    • http_port
    • https_port
    • ssl_unclean_shutdown
    • icp_port
    • htcp_port
    • mcast_groups
    • udp_incoming_address
    • udp_outgoing_address
    • cache_peer
    • cache_peer_domain
    • neighbor_type_domain
    • icp_query_timeout
    • maximum_icp_query_timeout
    • mcast_icp_query_timeout
    • dead_peer_timeout
    • hierarchy_stoplist
    • no_cache
    • cache_access_log
    • cache_log
    • cache_store_log
    • cache_swap_log
    • emulate_httpd_log
    • log_ip_on_direct
    • cache_dir
    • cache_mem
    • cache_swap_low
    • cache_swap_high
    • maximum_object_size
    • minimum_object_size
    • maximum_object_size_in_memory
    • cache_replacement_policy
    • memory_replacement_policy
    • store_dir_select_algorithm
    • mime_table
    • ipcache_size
    • ipcache_low
    • ipcache_high
    • fqdncache_size
    • log_mime_hdrs
    • useragent_log
    • referer_log
    • pid_filename
    • debug_options
    • log_fqdn
    • client_netmask
    • ftp_user
    • ftp_list_width
    • ftp_passive
    • ftp_sanitycheck
    • cache_dns_program
    • dns_children
    • dns_retransmit_interval
    • dns_timeout
    • dns_defnames
    • dns_nameservers
    • hosts_file
    • diskd_program
    • unlinkd_program
    • pinger_program
    • redirect_program
    • redirect_children
    • redirect_rewrites_host_header
    • redirector_access
    • redirector_bypass
    • auth_param
    • authenticate_ttl
    • authenticate_cache_garbage_interval
    • authenticate_ip_ttl
    • external_acl_type
    • wais_relay_host
    • wais_relay_port
    • request_header_max_size
    • request_body_max_size
    • refresh_pattern
    • quick_abort_min
    • quick_abort_max
    • quick_abort_pct
    • negative_ttl
    • positive_dns_ttl
    • negative_dns_ttl
    • range_offset_limit
    • connect_timeout
    • peer_connect_timeout
    • read_timeout
    • request_timeout
    • persistent_request_timeout
    • client_lifetime
    • half_closed_clients
    • pconn_timeout
    • ident_timeout
    • shutdown_lifetime
    • acl
    • http_access
    • http_reply_access
    • icp_access
    • miss_access
    • cache_peer_access
    • ident_lookup_access
    • tcp_outgoing_tos
    • tcp_outgoing_address
    • reply_body_max_size
    • cache_mgr
    • cache_effective_user
    • cache_effective_group
    • visible_hostname
    • unique_hostname
    • hostname_aliases
    • announce_period
    • announce_host
    • announce_file
    • announce_port
    • httpd_accel_host
    • httpd_accel_port
    • httpd_accel_single_host
    • httpd_accel_with_proxy
    • httpd_accel_uses_host_header
    • dns_testnames
    • logfile_rotate
    • append_domain
    • tcp_recv_bufsize
    • err_html_text
    • deny_info
    • memory_pools
    • memory_pools_limit
    • forwarded_for
    • log_icp_queries
    • icp_hit_stale
    • minimum_direct_hops
    • minimum_direct_rtt
    • cachemgr_passwd
    • store_avg_object_size
    • store_objects_per_bucket
    • client_db
    • netdb_low
    • netdb_high
    • netdb_ping_period
    • query_icmp
    • test_reachability
    • buffered_logs
    • reload_into_ims
    • always_direct
    • never_direct
    • header_access
    • header_replace
    • icon_directory
    • error_directory
    • maximum_single_addr_tries
    • snmp_port
    • snmp_access
    • snmp_incoming_address
    • snmp_outgoing_address
    • as_whois_server
    • wccp_router
    • wccp_version
    • wccp_incoming_address
    • wccp_outgoing_address
    • delay_pools
    • delay_class
    • delay_access
    • delay_parameters
    • delay_initial_bucket_level
    • incoming_icp_average
    • incoming_http_average
    • incoming_dns_average
    • min_icp_poll_cnt
    • min_dns_poll_cnt
    • min_http_poll_cnt
    • max_open_disk_fds
    • offline_mode
    • uri_whitespace
    • broken_posts
    • mcast_miss_addr
    • mcast_miss_ttl
    • mcast_miss_port
    • mcast_miss_encode_key
    • nonhierarchical_direct
    • prefer_direct
    • strip_query_terms
    • coredump_dir
    • ignore_unknown_nameservers
    • digest_generation
    • digest_bits_per_entry
    • digest_rebuild_period
    • digest_rewrite_period
    • digest_swapout_chunk_size
    • digest_rebuild_chunk_percentage
    • chroot
    • client_persistent_connections
    • server_persistent_connections
    • pipeline_prefetch
    • extension_methods
    • request_entities
    • high_response_time_warning
    • high_page_fault_warning
    • high_memory_warning
    • ie_refresh
    • vary_ignore_expire
    • sleep_after_fork
  • B. The Memory Cache
  • C. Delay Pools
    • C.1. Overview
    • C.2. Configuring Squid
      • C.2.1. delay_pools
      • C.2.2. delay_class
      • C.2.3. delay_parameters
      • C.2.4. delay_initial_bucket_level
      • C.2.5. delay_access
      • C.2.6. cache_peer no-delay Option
    • C.3. Examples
    • C.4. Issues
      • C.4.1. Fairness
      • C.4.2. Application Versus Transport Layer
      • C.4.3. Fixed Subnetting Scheme
    • C.5. Monitoring Delay Pools
  • D. Filesystem Performance Benchmarks
    • D.1. The Benchmark Environment
      • D.1.1. Hardware for Squid
      • D.1.2. Squid Version and Configuration
      • D.1.3. Web Polygraph Workload
    • D.2. General Comments
    • D.3. Linux
    • D.4. FreeBSD
    • D.5. OpenBSD
    • D.6. NetBSD
    • D.7. Solaris
    • D.8. Number of Disk Spindles
  • E. Squid on Windows
    • E.1. Cygwin
      • E.1.1. Installing Cygwin
      • E.1.2. The Squid Package
      • E.1.3. Compiling Squid
      • E.1.4. Configuring and Running
    • E.2. SquidNT
  • F. Configuring Squid Clients
    • F.1. Manually
      • F.1.1. Netscape/Mozilla
      • F.1.2. Explorer
      • F.1.3. Konqueror
      • F.1.4. Opera
      • F.1.5. Lynx
      • F.1.6. Environment Variables
    • F.2. Proxy Auto-Configuration
    • F.3. WPAD
    • F.4. Summary
  • About the Author
  • Colophon
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