Configure CSF on CentOS 7

Install needful packages if you haven’t yet

yum install wget vim perl-libwww-perl.noarch perl-Time-HiRes -y

Download and install CSF

cd /usr/src/
wget https://download.configserver.com/csf.tgz
tar -xzf csf.tgz
cd csf
sh install.sh

Run test:

cd /usr/local/csf/bin/
perl csftest.pl

Disable default Centos 7 firewall if you have it installed

systemctl stop firewalld
systemctl disable firewalld

Disable testing mode

cd /etc/csf/
vim csf.conf
from
TESTING = "1"
to
TESTING = "0"

Update TCP_IN with needful ports, for example

TCP_IN = "22,53,80,443,3306"

Restart CSF

csf -r

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