Table of Contents for
Squid: The Definitive Guide
Squid: The Definitive Guide
Published by
O'Reilly Media, Inc., 2004
- Cover
- Squid: The Definitive Guide
- Squid: The Definitive Guide
- Dedication
- Preface
- 1. Introduction
- 2. Getting Squid
- 3. Compiling and Installing
- 4. Configuration Guide for the Eager
- 5. Running Squid
- 6. All About Access Controls
- 7. Disk Cache Basics
- 8. Advanced Disk Cache Topics
- 9. Interception Caching
- 10. Talking to Other Squids
- 11. Redirectors
- 12. Authentication Helpers
- 13. Log Files
- 14. Monitoring Squid
- 15. Server Accelerator Mode
- 16. Debugging and Troubleshooting
- 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
- D. Filesystem Performance Benchmarks
- E. Squid on Windows
- F. Configuring Squid Clients
- About the Author
- Colophon
- Copyright
Name
htcp_port
Synopsis
The Hypertext Caching Protocol is an alternative to ICP. It provides better security
and better cache hit predictions. However, HTCP messages are larger
and more complicated. HTCP must be enabled at compile-time with the
—enable-htcp option.
This directive specifies the UDP port Squid uses to send and receive HTCP queries and replies. You may only specify one HTCP port number. As with ICP, the udp_incoming_address and udp_outgoing_address directives also control HTCP packets.
You may configure Squid to receive both ICP and HTCP queries at
the same time. Setting htcp_port to 0 disables HTCP.