Who has the solution to defend against dictionary attacks in Linux !!!

Source: Internet
Author: User
Who has the solution to defend against dictionary attacks in Linux !!! -- Linux general technology-Linux technology and application information. For details, refer to the following section. [I = s] This post was last edited by the disappearing Lightyear at, January 5 ,.

I am a newbie
My current system is often scanned to the port,
Then I was attacked by dictionary-based software attacks. Although I was not intruded into my server, such logs recorded a lot every day.
Please give me some advice !!!
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