How to Install Webmin on Ubuntu 18.04 & 16.04 LTS with Config Server Firewall (CSF) Installation and Configuration

webmin.sh

#Configure APT Repository

sudo nano /etc/apt/sources.list.d/webmin.list
#Add below value to this file:
# deb http://download.webmin.com/download/repository sarge contrib
# deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib

#Import the GPG key
curl http://www.webmin.com/jcameron-key.asc | sudo apt-key add -

#nstall Webmin 
sudo apt-get update
sudo apt-get install webmin

#Access Webmin
#https://localhost:10000/

#How To Install and Configure Config Server Firewall (CSF) on Ubuntu
#Download ConfigServer Firewall
wget http://download.configserver.com/csf.tgz

#ncompressing
tar -xzf csf.tgz

#disable Firewall
ufw disable

#Install ConfigServer Firewall
cd csf
sudo sh install.sh

#check if the required iptables modules are available
sudo perl /usr/local/csf/bin/csftest.pl

#Basic Configuration
nano /etc/csf/csf.conf
#TESTING = "0"

#Apply changes
csf -r

#Configuring ports

################################################
#On any server:
#TCP_IN: 22,53
#TCP_OUT: 22,53,80,113,443
#UPD_IN: 53
#UPD_OUT: 53,113,123

#Apache:
#TCP_IN: 80,443

#FTP server:
#TCP_IN: 20,21
#TCP_OUT: 20,21
#UPD_IN: 20,21
#UPD_OUT:20,21

#Mail server:
#TCP_IN: 25,110,143,587,993,995
#TCP_OUT: 25,110

#MySQL server
#TCP_IN: 3306
#TCP_OUT: 3306

#Blocking IP addresses
nano /etc/csf/csf.deny

#Allowing IP addresses
nano /etc/csf/csf.allow

#Ignoring IP addresses
nano /etc/csf/csf.ignore