SSH连接的时候出现下面的提示，不知道指什么，请指点！
安装好了Debian 3.1, 启动sshd后，我在SecureCRT上面连接的时候，出现下面的提示，不知道具体是指什么意思，请高手们指点一下！
The host key database does not contain an entry for the
hostname 192.168.40.131, which resolved to 192.168.40.131,
port 22. If you have received this message more
than once for 192.168.40.131, this may mean that 192.168.40.131
is an "alias" which resolves to different hosts.
It is recommended you verify your host key before accepting.
Server's host key fingerprint (MD5 hash):
31:5c:72:4c:df:6b:f6:63:e5:8f:f2:b4:4e:25:5b:ef
但是，忽略掉这个信息后，我还是可以进入Debian的！
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