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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Under Ubuntu more simple firewall Uncomplicated Firewall

we all know,Among Linux system has a very fast hardware firewall is called iptables,It can do far exceeds the scope of the firewall, but ......,usually,We only used it as a firewall to use。

but,If you just want a port policy,That does not seem to need to face iptables That lengthy configuration commands。Now,I'll introduce you to the other a more[……]

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