[FreeBSD] squid ve transparency

[Mesut GÜLNAZ]

firewall dan tüm port 80 isteklerini clientlar ile aynı ipye sahip bir server a yönlendirdim. server üzerinde squid kuruluı ve çalışıyor. clientlar ın proxy ayarlarını elle yaptığımda proxy den yararlanarak internete çıkıyorlar. ama elle ayarlamadan firewall dan yönlendirdiğim de istekler geliyor ama proxy internete çıkış yapmadan hemen cevap gönderiyor. neden anlayamadım.   squid üzerinde ipfw yüklü ve herhangi bir engelmeme yok. port yönlendirme de yok çünkü port zaten başka bir firewall tarafından yönlendiriliyor. tüm istekler squid in dinlediği porta geliyor.   kernel dosyası içeriğinin son satırları: options IPFIREWALL options IPFIREWALL_VERBOSE options IPFIREWALL_FORWARD options IPDIVERT options DUMMYNET options IPSTEALTH options IPFIREWALL_VERBOSE_LIMIT=100 options IPFIREWALL_DEFAULT_TO_ACCEPT options DUMMYNET #bandwith icin. #pseudo-device vlan 3 # IEEE 802.1Q VLAN Support   options SYSVMSG options MSGMNB=8192      # max # of bytes in a queue options MSGMNI=40          # number of message queue identifiers options MSGSEG=512        # number of message segments per queue options MSGSSZ=64         # size of a message segment options MSGTQL=2048      # max messages in system options SYSVSHM options SHMSEG=16           # max shared mem id's per process options SHMMNI=32           # max shared mem id's per system options SHMMAX=2097152  # max shared memory segment size (bytes) options SHMALL=4096        # max amount of shared   squid.conf dosyası:   http_port 3128 visible_hostname proxy.mydomain.com hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? no_cache deny QUERY cache_mem 128 MB maximum_object_size 512 KB ipcache_size 2048 fqdncache_size 2048 cache_dir ufs /usr/local/squid/cache 3072 60 312 read_timeout 5 minutes request_timeout 30 seconds half_closed_clients off forwarded_for off auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours 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 internet src 172.16.0.0/21 acl nodownload urlpath_regex -i "/usr/local/etc/squid/nodownload" http_access deny nodownload acl DENYPAGE urlpath_regex Servlet 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 no_cache deny DENYPAGE http_access allow internet http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost http_reply_access allow all http_access deny all icp_access allow all httpd_accel_host virtual httpd_accel_port 80 httpd_accel_with_proxy on httpd_accel_uses_host_header on coredump_dir /usr/local/squid / error_directory /usr/local/etc/squid/errors/Turkish client_db off #redirect_program /usr/local/bin/squidGuard #redirect_children 10 cache_effective_user squid cache_effective_group squid access_log /usr/local/squid/logs/access.log squid --------------------------------------------------------------- [EMAIL PROTECTED]#  ipfw show 65535 240969 28785602 allow ip from any to any [EMAIL PROTECTED]# egrep squid rc.conf squid_enable="YES" [EMAIL PROTECTED]# sockstat -l | grep squid squid    squid      903   5  udp4   *:58934               *:* squid    squid      903   12 tcp4   *:3128                *:* squid    squid      903   13 udp4   *:3130                *:* squid    squid      903   14 udp4   *:4827                *:* [EMAIL PROTECTED]# ps auxww | grep squid squid   552  0.0  0.1  1660  1116  ??  Ss    1:33PM   0:00.15 (pinger) (pinger) squid   709  0.0  0.1  1660  1104  ??  Ss    2:17PM   0:00.13 (pinger) (pinger) squid   711  0.0  0.1  1660  1104  ??  Ss    2:17PM   0:00.13 (pinger) (pinger) squid   746  0.0  0.1  1660  1116  ??  Ss    2:18PM   0:00.16 (pinger) (pinger) squid   901  0.0  0.3  5552  2804  ??  Is    3:09PM   0:00.01 /usr/local/sbin/squid -D squid   903  0.0  1.0 11472  9932  ??  S     3:09PM   0:02.01 (squid) -D (squid) squid   904  0.0  0.1  1272   596  ??  Is    3:09PM   0:00.04 (unlinkd) (unlinkd) squid   905  0.0  0.1  1660  1116  ??  Ss    3:09PM   0:00.11 (pinger) (pinger) root   1094  0.0  0.1  1316   688  p0  I     4:27PM   0:00.01 tail -f /usr/local/squid/logs/access.log root   1222  0.0  0.1  1588   968  p2  S+    5:06PM   0:00.01 grep squid [EMAIL PROTECTED]# ls -l /var/db/pkg/ | grep squid drwxr-xr-x  2 root  wheel      512 Feb 17 18:07 squid-2.5.12_4 [EMAIL PROTECTED]#   rc.conf içerisinde ipfw ile ilgili bir satır yok.   iyi çalışmalar