Csf firewall to effectively prevent the use of small-scale DDOS

Before I wrote an article,After purchasing a VPS you should spare security measures,This side describes how to install csf Firewall,In fact, just a few simple commands,but,At that time, my ignorance,In fact lead to csf firewall does not really take effect,The reason is csf and ufw are the same as iptables script,They are in the same level,We are conflicting。

So,In the configuration c[……]

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Avoid input candidate article hidden behind other windows

When developing pocketed macOS version of the input method,I encountered such a problem,That is the window priority issues。Before How to make NSWindow displayed in a different Space or the Screen This article I referred to himself realizes candidate field pocketed input method,In fact, with a NSWindow

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