i have server running squid (transparent proxy) in Ubuntu linux server (squid installed using apt-get) this server have two interfaces, eth0 to internet & eth1 to LAN
this is my squid.conf ## --- squid.conf ----- http_port 192.168.10.1:3128 transparent hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? cache deny QUERY cache_vary on acl apache rep_header Server ^Apache broken_vary_encoding allow apache cache_mem 8 MB cache_swap_low 98 cache_swap_high 99 maximum_object_size 51200 KB minimum_object_size 0 KB ipcache_size 2048 ipcache_low 98 ipcache_high 99 fqdncache_size 2048 cache_replacement_policy heap LFUDA memory_replacement_policy heap GDSF cache_dir ufs /var/spool/squid 5000 18 256 access_log /var/log/squid/access.log squid cache_log /dev/null cache_store_log /dev/null emulate_httpd_log off log_ip_on_direct on mime_table /usr/share/squid/mime.conf log_mime_hdrs off pid_filename /var/run/squid.pid log_fqdn off ftp_user [EMAIL PROTECTED] ftp_list_width 32 ftp_passive on ftp_sanitycheck on hosts_file /etc/hosts refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 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 # https acl SSL_ports port 563 # snews acl SSL_ports port 873 # rsync acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https 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 Safe_ports port 631 # cups acl Safe_ports port 873 # rsync acl Safe_ports port 901 # SWAT acl purge method PURGE acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access allow purge localhost http_access deny purge http_access deny !Safe_ports http_access deny CONNECT !SSL_ports ## Client IP Address acl client01 src 192.168.10.11/32 acl client02 src 192.168.10.12/32 ## Client MAC Address acl client01-mac arp 00:16:17:BB:2B:AF acl client02-mac arp 00:1A:4D:44:F5:2E # user01 http_access allow client01 client01-mac http_access deny client01 !client01-mac # user02 http_access allow client02 client02-mac http_access deny client02 !client02-mac http_access allow localhost http_access deny all icp_access allow all cache_mgr [EMAIL PROTECTED] cache_effective_user proxy cache_effective_group proxy visible_hostname Proxy.server always_direct allow all coredump_dir /var/spool/squid extension_methods REPORT MERGE MKACTIVITY CHECKOUT store_dir_select_algorithm round-robin ## ---- end of squid.conf ---- and this is my iptables for squid transparent #### USER 1 $IPT -A PREROUTING -t nat -i $LAN -s $USER1 -m mac --mac-source $MAC_USER1 -j ACCEPT $IPT -t nat -A PREROUTING -i $LAN -s $USER1 -p tcp --dport 80 -j REDIRECT --to-port 3128 $IPT -A PREROUTING -t nat -i $LAN -s ! $USER1 -m mac --mac-source $MAC_USER1 -j DROP #### USER 2 $IPT -A PREROUTING -t nat -i $LAN -s $USER2 -m mac --mac-source $MAC_USER2 -j ACCEPT $IPT -t nat -A PREROUTING -i $LAN -s $USER2 -p tcp --dport 80 -j REDIRECT --to-port 3128 $IPT -A PREROUTING -t nat -i $LAN -s ! $USER2 -m mac --mac-source $MAC_USER2 -j DROP $IPT -A FORWARD -i $LAN -s $USER1 -m mac --mac-source $MAC_USER1 -j ACCEPT $IPT -A FORWARD -i $LAN -s ! $USER1 -m mac --mac-source $MAC_USER1 -j DROP $IPT -A FORWARD -i $LAN -s $USER2 -m mac --mac-source $MAC_USER2 -j ACCEPT $IPT -A FORWARD -i $LAN -s ! $USER2 -m mac --mac-source $MAC_USER2 -j DROP $IPT -t nat -A POSTROUTING -o $INTERNET -s $USER1 -j MASQUERADE $IPT -t nat -A POSTROUTING -o $INTERNET -s $USER2 -j MASQUERADE when i look into /var/log/squid/access.log, i can found client access squid. if client setting browser using proxy into 192.168.1.10, i can see client in /var/log/squid/access.log what wrong with my squid.conf or iptables rules? why transparent proxy not working, & why client must setting using proxy in their browser if the want using proxy? thanks in advanced ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs