Before starting knockd, close port 22960 and try to log in remotely.
在启动knockd之前,关闭端口22960并尝试远程登录。
In this case, because you just wanted to open or close port 22960, a single command sufficed.
在这里,因为只希望打开或关闭端口22960,所以使用单一命令就够了。
The last scheme for adding security to your machine is the boldest one. You will close the open port making your machine virtually impregnable to any attack.
增强计算机安全性的最后一种方案是最激进的:关闭打开的端口,这会让任何攻击都无法攻破您的计算机。
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