I get notices a lot, after doublechecking I find they are fake.
我得到了很多通告，我觉得他们是经过双重遏制假冒。
2
A configuration issue is usually the root cause, so double-checking that your client and server configurations correctly match can weed out a lot of problems.
配置问题通常是问题的根源，因此反复检查您的客户端和服务器配置是否匹配能够消除大量问题。
3
so it's good to use a proper header-checking tool to double-check.