• hostname_aliases
• hosts_file
• htcp_access
• htcp_clr_access
• htcp_port
• http_accel_surrogate_remote
• http_access
• http_access2
• http_port
• http_reply_access
• http_upgrade_request_protocols
• httpd_accel_no_pmtu_disc
• httpd_accel_surrogate_id
• https_port
• icap_206_enable
• icap_access
• icap_class
• icap_client_username_encode
• icap_client_username_header
• icap_connect_timeout
• icap_default_options_ttl
• icap_enable
• icap_io_timeout
• icap_log
• icap_persistent_connections
• icap_preview_enable