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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