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Installing CSF Firewall

Install/update firewall (Recommended CSF)

  1. Download the package here

#cd /usr/local/src

#wget http://www.configserver.com/free/csf.tgz

#tar -zxf csf.tar.gz

#cd /csf

#sh install.sh

# vi /etc/csf/csf.conf

Find TCP

# Allow incoming TCP ports

TCP_IN = “20,21,25,53,80,110,143,443,465,953,993,995,2082,2083,2086,2087,2095,  2096,8090,49226,26,512:65535,5666,3306,3333”

# Allow outgoing TCP ports

TCP_OUT = “20,21,25,37,43,53,80,110,113,443,587,873,953,2087,2089,2703,8090,512:65535”

Then add your ip and client ip in the two files.

#Vi /etc/csf/csf.allow

#Vi /etc/csf/csf.ignore

How Remove the CSF Firewall

Just run the uninstall script located at /etc/csf/ directory

#cd  /etc/csf/

#sh uninstall.sh

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