AWS - How to Setup VPC (Public & Private Subnet)

#aws #ec2 #publicsubnet #privatesubnet #securecloud #cloud

This video will help you to understand. How to setup VPC with Public and Private Subnet.

You can create a public-facing subnet for your web servers that have access to the internet. You can also place your backend systems, such as databases or application servers, in a private-facing subnet with no internet access. You can use multiple layers of security, including security groups and network access control lists, to help control access to Amazon EC2 instances in each subnet.

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Automated Script - Docker Installation

Create a bash script and provide executable premission to the file and then execute. Docker installation will be done.

#!/bin/bash

# Note : For Docker Setup

#OS Update:	
sudo apt-get update -y;
sudo apt-get install gdebi -y;
sudo apt-get install vim -y;
sudo apt-get install nano -y;
sudo apt-get install htop -y;

#Install SSH:
sudo apt-get install openssh-server -y;

#Remove Libre Office:
sudo apt-get remove --purge libreoffice* -y;
sudo apt-get clean;
sudo apt-get autoremove;

#Git
sudo add-apt-repository ppa:git-core/ppa;
sudo apt-get update -y;
sudo apt-get install git -y; 

#sudo add-apt-repository ppa:n-muench/programs-ppa2;
sudo add-apt-repository ppa:n-muench/programs-ppa;
sudo apt-get update -y;
sudo apt-get install -y filezilla;	
sudo apt-get install -y sublime-text;
sudo apt-get install -y chromium-browser;

#Essential Pack	
sudo apt-get install -y synaptic vlc gimp gimp-data gimp-plugin-registry gimp-data-extras bleachbit unrar zip unzip;	

#Samba
sudo apt-get install -y samba system-config-samba cifs-utils;

#Docker Installation
sudo curl -fsSL get.docker.com -o get-docker.sh >/tmp/docker
chmod +x /tmp/docker/get-docker.sh
sudo /tmp/docker/get-docker.sh

#Install Docker Machine
sudo curl -L https://github.com/docker/machine/releases/download/v0.14.0/docker-machine-`uname -s`-`uname -m` >/tmp/docker-machine && \
sudo install /tmp/docker-machine /usr/local/bin/docker-machine

#Install Docker Compose
sudo curl -L https://github.com/docker/compose/releases/download/1.20.1/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

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CentOS with Lamp Stack (Scripted Installation)

One Click Installation

This will configure WebServer with up httpd, mysql, ftp, php, samba.

#!/bin/bash

#IPTables
service iptables stop
chkconfig iptables off

#SELinux Disable - Completely
setenforce 0
SELINUX=disabled
sed -i 's/SELINUX= .*/SELINUX= '${SELINUX}'/' /etc/selinux/config

#Update
yum insall -y update
yum install -y upgrade

#Install httpd
yum install -y httpd
service httpd start
chkconfig httpd on

#Install MySQL Server 5.7
wget https://dev.mysql.com/get/mysql57-community-release-el6-11.noarch.rpm
rpm -ivh mysql57-community-release-el6-11.noarch.rpm
yum clean all
yum install -y mysql mysql-server php-mysql
service mysqld start
chkconfig mysqld on

#Add EPEL Repository
wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -ivh epel-release-6-8.noarch.rpm

#Install PHP
yum install -y php php-gd php-mysql php-mcrypt

#Create info.php
cat << EOF > /var/www/html/info.php;

EOF

#HTTPD php.ini - /etc/php.ini
max_execution_time=18000
memory_limit=2048M
upload_max_filesize=32M
sed -i.orignal 's/memory_limit = .*/memory_limit = '${memory_limit}'/' /etc/php.ini
sed -i 's/max_execution_time = .*/max_execution_time = '${max_execution_time}'/' /etc/php.ini
sed -i 's/upload_max_filesize = .*/upload_max_filesize = '${upload_max_filesize}'/' /etc/php.ini

#Install and Configure FTP
yum install -y vsftpd
service	vsftpd start
chkconfig vsftpd on

#Change Owner of HTML Folder (This is for the permission to FTP and Samba)
chown -R ftp_user:ftp_users /var/www/html

#FTP Config vsftpd.conf - /etc/vsftpd/vsftpd.conf (Change configuration file directly with SED Command)
sed -i.orignal 's/anonymous_enable=YES/anonymous_enable=NO /etc/vsftpd/vsftpd.conf
sed -i 's/local_enable=YES/local_enable=NO/' /etc/vsftpd/vsftpd.conf

#FTP User
useradd -s /sbin/nologin -d /var/www/html ftp_user
groupadd ftp_users
usermod -aG ftp_users ftp_user
chown -R root:ftp_users /var/www/html
passwd ftp_user

#Samba configuration (Optional - If required can be installed)
yum install -y samba samba-client samba-common
service smb start
mv /etc/samba/smb.cnf /etc/samba/smb.cnf.bak
chkconfig smb on
echo -e "path= /var/www/html/ \npublic=no \nbrowsable = no \nwritable = yes \nprintable = no \write list = @ftp_users" >> /etc/samba/smb.conf
service smb restart
smbpasswd -a ftp_user

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