解决思路:
查看nginx日志文件 error.log
发现有报错内容为:
2014/04/16 09:53:43 [error] 10626#0: *274 FastCGI sent in stderr: "Access to the script '/home/web/test.zrer.com/c.html'
has been denied (see security.limit_extensions)" while reading response header from upstream, client: 116.226.237.182,
server: test.zrer.com, request: "GET /c.html HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "test.zrer.com"
查看php-fpm文件