CURL 返回http code 417错误
如题， 今天下午服务器突然报警，所有访问其中一台服务器的接口全部返回 http_code 417 错误，相同的代码 在其他的服务器则正常返回数据。所有请求的CURL方法都是通过同一个基础的 http请求类库来完成的.
虽然最后在 stackoverflow 找到解决方案，但是返回 417 错误的原因是什么呢？
回复内容：
如题， 今天下午服务器突然报警，所有访问其中一台服务器的接口全部返回 http_code 417 错误，相同的代码 在其他的服务器则正常返回数据。所有请求的CURL方法都是通过同一个基础的 http请求类库来完成的.
虽然最后在 stackoverflow 找到解决方案，但是返回 417 错误的原因是什么呢？
与服务器环境有关，直接引用两篇博文吧
http://blog.csdn.net/wudiyi815/article/details/8650341
http://www.cnblogs.com/zox2011/archive/2013/06/06/3121247.html
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