私はsquid3に奇妙な問題を抱えています。正常に動作しており、プロキシ経由でほとんどの Web サイトにアクセスできます。ただし、一部のサイトのように
google.com
bing.com
ブロックされているように見えますが、常にではありません。squid3 を再起動しても、 /var/spool/squid3 ( cache ) ディレクトリをクリアしても効果がないようです。
squid3 が実行されているマシンにログインすると、
wget --no-proxy google.com
問題はありませんが、プロキシを通過しても応答しません。現時点でプロキシ経由で使用しているstackoverflow.comなど、他のほとんどのWebサイトにアクセスできます。squid3 がそれらを異なる方法で処理するように、google.com と bing.com の何が特別なのか、また、squid3 conf ファイルにそのような動作に関連する可能性のある設定があるかどうかを考えてください。
私も同じ問題を抱えていました。IPv6接続の問題が原因で発生した私の問題。Squid3 は ipv6 と ipv4 の両方のプロトコルをサポートします。サーバーが ipv6 に接続できず、リモート サーバーが ipv6 を優先する場合、squid も ipv6 を優先し、アクセス ログなどのデータを取得できません。
最初に ping で ipv6 接続を試します。
ping6 ivp6.google.com
ping が応答しない場合は、最初に優先 ipv4 用に squid3 を構成します。
squid.conf で検索
TAG: dns_v4_first
後
#Default:
#dns_v4_first off
追加
dns_v4_first on
次にsquid3サーバーを再起動します
service squid3 restart
修正前のアクセスログです。
1352760882.854 796 88.my.ip.108 TCP_MISS/000 0 GET http://connect.facebook.net/en_US/all.js [squiduser] DIRECT/connect.facebook.net -
1352760885.717 69 88.my.ip.108 TCP_MISS/000 0 GET http://www.google.com.tr/complete/search? [squiduser] DIRECT/www.google.com.tr -
1352760886.250 13 88.my.ip.108 TCP_MISS/000 0 GET http://www.google.com.tr/complete/search? [squiduser] DIRECT/www.google.com.tr -
1352760887.011 369 88.my.ip.108 TCP_MISS/000 0 GET http://www.google.com.tr/complete/search? [squiduser] DIRECT/www.google.com.tr -
1352760887.989 42 88.my.ip.108 TCP_MISS/000 0 GET http://www.google.com.tr/complete/search? [squiduser] DIRECT/www.google.com.tr -
1352760888.984 75 88.my.ip.108 TCP_MISS/000 0 GET http://www.google.com.tr/complete/search? [squiduser] DIRECT/www.google.com.tr -
1352760897.351 8165 88.my.ip.108 TCP_MISS/000 0 GET http://www.google.com.tr/search? [squiduser] DIRECT/www.google.com.tr -
1352761072.531 10970 88.my.ip.108 TCP_MISS/000 0 GET http://www.google-analytics.com/__utm.gif? [squiduser] DIRECT/www.google-analytics.com -
1352761072.533 10272 88.my.ip.108 TCP_MISS/000 0 GET http://apis.google.com/js/plusone.js [squiduser] DIRECT/apis.google.com -
1352761072.535 10262 88.my.ip.108 TCP_MISS/000 0 GET http://connect.facebook.net/en_US/all.js [squiduser] DIRECT/connect.facebook.net -
これが私の完全なイカの設定です。squid を匿名プロキシ サーバーとして使用します。
2012/11/14 00:09:02| Processing Configuration File: /etc/squid3/squid.conf (depth 0)
2012/11/14 00:09:02| Processing: auth_param basic program /usr/lib/squid3/ncsa_auth /etc/squid3/squid.passwd
2012/11/14 00:09:02| Processing: auth_param basic children 5
2012/11/14 00:09:02| Processing: auth_param basic realm Squid proxy-caching web server
2012/11/14 00:09:02| Processing: auth_param basic credentialsttl 2 hours
2012/11/14 00:09:02| Processing: acl manager proto cache_object
2012/11/14 00:09:02| Processing: acl localhost src 127.0.0.1/32 ::1
2012/11/14 00:09:02| Processing: acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1
2012/11/14 00:09:02| Processing: acl CONNECT method CONNECT
2012/11/14 00:09:02| Processing: http_access allow manager localhost
2012/11/14 00:09:02| Processing: http_access deny manager
2012/11/14 00:09:02| Processing: http_access allow localhost
2012/11/14 00:09:02| Processing: acl ncsaauth proxy_auth REQUIRED
2012/11/14 00:09:02| Processing: http_access allow ncsaauth
2012/11/14 00:09:02| Processing: http_access deny all
2012/11/14 00:09:02| Processing: http_port 8880
2012/11/14 00:09:02| Processing: coredump_dir /var/spool/squid3
2012/11/14 00:09:02| Processing: refresh_pattern ^ftp: 1440 20% 10080
2012/11/14 00:09:02| Processing: refresh_pattern ^gopher: 1440 0% 1440
2012/11/14 00:09:02| Processing: refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
2012/11/14 00:09:02| Processing: refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880
2012/11/14 00:09:02| Processing: refresh_pattern . 0 20% 4320
2012/11/14 00:09:02| Processing: dns_v4_first on
2012/11/14 00:09:02| Processing: forwarded_for delete
2012/11/14 00:09:02| Processing: request_header_access Allow allow all
2012/11/14 00:09:02| Processing: request_header_access Authorization allow all
2012/11/14 00:09:02| Processing: request_header_access WWW-Authenticate allow all
2012/11/14 00:09:02| Processing: request_header_access Proxy-Authorization allow all
2012/11/14 00:09:02| Processing: request_header_access Proxy-Authenticate allow all
2012/11/14 00:09:02| Processing: request_header_access Cache-Control allow all
2012/11/14 00:09:02| Processing: request_header_access Content-Encoding allow all
2012/11/14 00:09:02| Processing: request_header_access Content-Length allow all
2012/11/14 00:09:02| Processing: request_header_access Content-Type allow all
2012/11/14 00:09:02| Processing: request_header_access Date allow all
2012/11/14 00:09:02| Processing: request_header_access Expires allow all
2012/11/14 00:09:02| Processing: request_header_access Host allow all
2012/11/14 00:09:02| Processing: request_header_access If-Modified-Since allow all
2012/11/14 00:09:02| Processing: request_header_access Last-Modified allow all
2012/11/14 00:09:02| Processing: request_header_access Location allow all
2012/11/14 00:09:02| Processing: request_header_access Pragma allow all
2012/11/14 00:09:02| Processing: request_header_access Accept allow all
2012/11/14 00:09:02| Processing: request_header_access Accept-Charset allow all
2012/11/14 00:09:02| Processing: request_header_access Accept-Encoding allow all
2012/11/14 00:09:02| Processing: request_header_access Accept-Language allow all
2012/11/14 00:09:02| Processing: request_header_access Content-Language allow all
2012/11/14 00:09:02| Processing: request_header_access Mime-Version allow all
2012/11/14 00:09:02| Processing: request_header_access Retry-After allow all
2012/11/14 00:09:02| Processing: request_header_access Title allow all
2012/11/14 00:09:02| Processing: request_header_access Connection allow all
2012/11/14 00:09:02| Processing: request_header_access Proxy-Connection allow all
2012/11/14 00:09:02| Processing: request_header_access User-Agent allow all
2012/11/14 00:09:02| Processing: request_header_access Cookie allow all
2012/11/14 00:09:02| Processing: request_header_access All deny all