Hi, My squid proxy is very slow as compared to cacheflow which is configured as a failover. Also squid eats up memory :: [root@localhost root]# free -m total used free shared buffers cached Mem: 1001 983 18 0 108 294 -/+ buffers/cache: 580 421 Swap: 1027 28 999 [root@localhost root]# Free memory is only 18 MB out of 1 GB Output of TOP :: ************** 19:45:14 up 10 days, 16:25, 3 users, load average: 1.06, 1.11, 1.08 100 processes: 98 sleeping, 2 running, 0 zombie, 0 stopped CPU states: cpu user nice system irq softirq iowait idle total 25.4% 0.0% 2.6% 0.0% 0.0% 2.2% 69.5% cpu00 100.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% cpu01 0.0% 0.0% 2.5% 0.0% 0.0% 0.0% 97.4% cpu02 1.9% 0.0% 7.7% 0.0% 0.0% 4.1% 86.0% cpu03 0.0% 0.0% 0.3% 0.0% 0.0% 4.7% 94.8% Mem: 1025424k av, 1009608k used, 15816k free, 0k shrd, 116416k buff 496012k actv, 97432k in_d, 14492k in_c Swap: 1052216k av, 57496k used, 994720k free 277972k cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 1653 root 25 0 600 20 4 R 24.6 0.0 15344m 0 cmaperfd 29173 squid 15 0 214M 210M 840 S 3.5 21.0 11:27 2 squid *********************************** The %Memory by squid is 21.0 Squid configuration is as follows:: ************* http_port 8080 hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? no_cache deny QUERY cache_mem 330 MB cache_swap_low 90 cache_swap_high 92 maximum_object_size 8192 KB maximum_object_size_in_memory 32 KB cache_replacement_policy heap LFUDA memory_replacement_policy heap LFUDA cache_dir ufs /var/squid/cache 8000 18 256 cache_dir ufs /usr/local/squid/var/cache 2000 5 256 7cache_store_log none auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours auth_param basic casesensitive off refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 half_closed_clients off acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 563 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 563 # https, snews acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow all http_reply_access allow all icp_access allow all cache_effective_user squid cache_effective_group squid visible_hostname aaa-aaa memory_pools off coredump_dir /usr/local/squid/var/cache *********************** Thanks, Rahul