Squid configuration directives

On this page you find all Squid configuration directives. For full documentation see the respective release configuration guide.

Version specific guides:   v8   v7   v6   v5   v4   3.5   3.4   3.3   3.2   3.1   3.0   2.7   2.6

Directive Supported Squid Versions
accept_filter v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7
access_log v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
acl v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
acl_uses_indirect_client v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 2.7 2.6
adaptation_access v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1
adaptation_masterx_shared_names v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1
adaptation_meta v7 v6 v5 v4 3.5 3.4 3.3 3.2
adaptation_send_client_ip v7 v6 v5 v4 3.5 3.4 3.3 3.2
adaptation_send_username v7 v6 v5 v4 3.5 3.4 3.3 3.2
adaptation_service_chain v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1
adaptation_service_iteration_limit v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1
adaptation_service_set v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1
adaptation_uses_indirect_client v7 v6 v5 v4 3.5 3.4 3.3 3.2
adapted_http_access v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1
allow_underscore v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
always_direct v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
announce_file v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
announce_host v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
announce_period v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
announce_port v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
append_domain v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
as_whois_server v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
auth_param v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
auth_schemes v7 v6 v5
authenticate_cache_garbage_interval v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
authenticate_ip_shortcircuit_access 2.7
authenticate_ip_shortcircuit_ttl 2.7
authenticate_ip_ttl v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
authenticate_ttl v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
background_ping_rate v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0
balance_on_multiple_ip 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
broken_posts v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
broken_vary_encoding 2.7 2.6
buffered_logs v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_dir v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_dns_program 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_effective_group v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_effective_user v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_log v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_log_message v7 v6
cache_mem v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_mgr v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_miss_revalidate v7 v6 v5 v4 3.5 3.4 3.3
cache_peer v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_peer_access v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_peer_domain 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_replacement_policy v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_store_log v7 v6 v5 v4 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6
cache_swap_high v7 v6 [v5](https://www.squid-cache.org/Versi

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