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This is the default error page for
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It is located
/usr/share/nginx/html/50x.html
You should customize this error page for your own
site or edit the error_page directive in
the nginx configuration file
/etc/nginx/nginx.conf.例如：一个PR值为1的网站表明这个网站不太具有流行度，而PR值为7到10则表明这个网站非常受欢迎（或者说极其重要）。一般PR值达到4，就算是一个不错的网站了。Google把自己的网站的PR值定到9，这说明Google这个网站是非常受欢迎的，也可以说这个网站非常重要。
配色/在线汉字}