在nginx proxy_pass中禁用IPv6

我的服务器没有IPv6地址。

但是，当我使用Nginx的proxy_pass与IPv4和IPv6上游，有时它会尝试使用IPv6发送传出请求：

2013/07/30 00:25:06 [error] 1930#0: *1482670 connect() to [AAAA:BBBB:C:DDD:E:F:GGG:HHH]:443 failed (101: Network is unreachable) while connecting to upstream, client: AA.BB.CC.DD, server: example.com, request: "GET /download/file HTTP/1.0", upstream: "https://[AAAA:BBBB:C:DDD:E:F:GGG:HHH]:443/download/file", host: "example.com" 

如何在proxy_pass中为传出请求禁用IPv6？

nginx.conf：

• 为什么在与proxy_pass配合使用时，sub_filter似乎不起作用？
• 理解这个错误：apr_socket_recv：连接重置由同级（104）
• 正确的方法来旋转Nginx日志
• Apache MPMs – 工人vs Prefork
• Nginx：相对于conf文件的根path

 upstream download { server download.example.com:443; keepalive 8; } location /download { proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Connection ""; proxy_ignore_headers X-Accel-Redirect; proxy_http_version 1.1; resolver 8.8.8.8; resolver_timeout 5s; proxy_pass https://download; } 

nginx -V：

 nginx version: nginx/1.4.2 built by gcc 4.7.2 (Debian 4.7.2-5) TLS SNI support enabled configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-mail --with-mail_ssl_module --with-file-aio --with-http_spdy_module --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt=-Wl,-z,relro --with-ipv6 

操作系统：Debian Wheezy

 Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux 

ip a

 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 6c:62:6d:7a:ea:af brd ff:ff:ff:ff:ff:ff inet XXX.XXX.XXX.XXX/27 brd XXX.XXX.XXX.XXX scope global eth0 

  resolver 8.8.8.8 ipv6=off;