Hello, I was wondering if there were any configuration recommendations for Squid in large environments. We have approximately 4000+ users. Below is my squid configuration as it stands now without the acl and cache_peer_access (and a few other) lines. System configuration is below that. I know this is a dual CPU and squid does not really take advantage of this configuration. Also, after reading a few of the posts here I have been seriously considering removing the RAID1 configuration on the drives. http_port 3128 acl QUERY urlpath_regex cgi-bin \? acl SSL method CONNECT acl PURGE method PURGE no_cache deny QUERY cache_mem 768 MB max_filedesc 8192 maximum_object_size 1024 KB maximum_object_size_in_memory 128 KB ipcache_size 4096 fqdncache_size 4096 cache_dir aufs /var/spool/squid_cache 4000 16 256 #cache_dir null /tmp cache_store_log none cache_access_log /var/log/squid/access.log logfile_rotate 60 #debug_options ALL,9 quick_abort_min 16 KB quick_abort_max 8192 KB quick_abort_pct 50 negative_ttl 1 minutes positive_dns_ttl 1 hours negative_dns_ttl 1 minutes range_offset_limit 1024 KB shutdown_lifetime 10 seconds memory_pools off query_icmp off test_reachability off buffered_logs on never_direct allow all snmp_port 3401 snmp_access allow snmppublic localhost snmp_access allow snmppublic mgmt snmp_access allow snmppublic proxy_net snmp_access deny all max_open_disk_fds 0 uri_whitespace allow nonhierarchical_direct off prefer_direct off strip_query_terms on coredump_dir /var/spool/squid ignore_unknown_nameservers off client_persistent_connections on server_persistent_connections on half_closed_clients on pipeline_prefetch on request_entities on ie_refresh on forwarded_for off HP DL-380 G4 Dual 3.2GHz CPU 4GB Memory 2x72GB Drives - RAID 1 - Operating System 2x146GB Drives - RAID 1 - Cache If more information is needed, please let me know. Thank you, Troy