Install CSF Firewall - Centos 7 | WJunction

Tango

Moderator

Staff member

Jun 14, 2020

Using Putty Install CSF Dependencies with YUM

Code:

yum upgrade
yum -y install wget perl bind-utils unzip net-tools perl-libwww-perl perl-LWP-Protocol-https perl-GDGraph nano

Download and Install CSF firewall

Code:

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

Check CSF will run on your system

Code:

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

Testing ip_tables/iptable_filter...OK
Testing ipt_LOG...OK
Testing ipt_multiport/xt_multiport...OK
Testing ipt_REJECT...OK
Testing ipt_state/xt_state...OK
Testing ipt_limit/xt_limit...OK
Testing ipt_recent...OK
Testing xt_connlimit...OK
Testing ipt_owner/xt_owner...OK
Testing iptable_nat/ipt_REDIRECT...OK
Testing iptable_nat/ipt_DNAT...OK

Enable CSF Firewall using nano editor

Code:

nano /etc/csf/csf.conf

# lfd will not start while this is enabled
TESTING = "0"

# Using cursor change TESTING = "1" to "0", Press CTRL + O to save file

Restart Firewall

Code:

csf -r

Disable CSF Firewall

Code:

csf -x

Enable CSF Firewal

Code:

csf -e

Whitelist IP in CSF Firewall

Code:

csf -a IP