how to secure CentOS server using CWP features

#Port 22 <-- Here! Remove the # and change 22 to whatever you want
#AddressFamily any

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Don't forget to also change the port in /etc/csf/csf.conf under the TCP_IN line:

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TCP_IN = "20,21,[i][b]2222[/b][/i],25,53,80,110,143,443,465,587,993,995,2030,2031"(not that I recommend port 2222, as FritzFrog scans for that in addition to 22).