The default log level should be WARN which will write a message to the log file only if a request has been blocked.
默认的日志记录级别应该是WARN，它只在已经阻止了请求的情况下在日志文件中写消息。
A blocked attempt by a user from the host dev01, via the rules applied in the hosts.allow file, could be.
由于应用了hosts . allow文件中的规则，来自主机dev01的用户的连接尝试被拒绝，其消息如下。
And last but not least, someone downloading mail at work may find that some file types are blocked by default, thus they may never even receive the file.
最后但并非不重要的是，有些人工作的时候下载邮件会发现有些文件类型被禁用了，因此可能再也不会接受到这些文件。
It runs as a service and can optionally log all blocked access attempts to a file.
该软件作为一个服务运行并且可以有选择地记录所有拦截的访问企图到一个文件当中。
Can you access that file or is it blocked?
您能访问那个文件吗？文件是不是被阻止了？
Can you access that file or is it blocked?
您能访问那个文件吗？文件是不是被阻止了？
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