ISP setup ubuntu

If you have any question message me on Slack or Email

Slack : nanjuan

Email : nestor@nntorres.com

If you have not setup your network adapter look here https://goo.gl/vs4cHC

VirtualBox setup for the ISP Server

• Go to https://www.ubuntu.com/download/server and download the LTS server version.

1. Install Ubuntu Server in Virtual Machine
2. On Virtual Box go to top left corner to New to create the virtual box.

1. Create the name of this Box recommended name (ISP Ubuntu)
   • In Type choose Linux if is not auto setected
   • In Version choose Ubuntu (64-bit)

1. On the memory section depending to your machine RAM capacity the minimun should be (254MB) but if you have enough memory use (1024MB)

1. Leave the Hard drive section as default which is (Create a virutal hard disk now)

• Leave the Hard disk file type to (VDI)

• Leave storage on physical hard disk to (Dynamically allocated)

• For this machine the minimun for Ubuntu so it does not give you problem set the File location and size to (20.00GB)

1. After the Virtual Machine is created now you have to add the ISO that you download at the beginning
   • Go to Storage section and click on top that it say ([Optical Drive]Empty)

• Then press (Choose disk image…)

• Find the location where you download your ISO for Ubuntu Server.

1. On this step make sure you add the network adapters to the server
   • Right click the ISP Ubuntu and click settings

• On network adapter one leave it to Nat
• Then go to Network Adapter 2 and change the network adapter to (Host-only Adapter) like the picture bellow.

1. On this part start the ISP ubuntu virtual box to start the setup.

• Click on the ISP Ubuntu then press start

1. The setup of the ISP Ubuntu on the photos bellow
   • select you language

• Press enter on Install Ubuntu Server

• Select the language again

• Select your location

• Press no on the Configure the Keyboard

• Select Keyboard language

• Select enp0s3 which is the NAT this might vary on your PC

• Set the Hostname of you VM machine to whatever you want

• Set the full name for new user

• Then set your Username for your account

• Set the new user password

• verify password again

• Select if you want to encrypt your home directory I advice to select no for this test lab

• Select your Time zone if the one shown is correct press yes otherwise press no

• Select Partition disks select the default the one on the picture.

• Select disk partition the default

• On the next step select YES on configure LVM

• Select the partition size you need to leave it as default

• Press yes on write the changes to disks

• Do not set a proxy leave black and press continue

• The update question is all up to you. Can be setup to no auto updates or install security updates automatically

• On the sofware selection for this lab leave default

• on the install the grub boot loader question select YES

• On the last question select continue

• After Reboot log in into computer with the username you setup early and enter password to log in

• Enable ipv4 routing on command line run
• (sudo nano /etc/sysctl.conf)
• Enter your password
• The the conft file will open

• Go to the line that say (Uncomment the next line to enable packet forwarding for IPv4) and the remove the symbol (#)

• Then press control+X to save the config file on ubuntu and enter Y to safe the file

• Then press Enter to make sure the file name stay the same

• Next step run command (ip link show) to see the network interfaces like bellow

• You will need to add another interface to the server
• Run command on the terminal (sudo nano /etc/network/interfaces) and enter your admin password

• Then you will see a text file like bellow

• Then add the new network adapter like bellow

• Then press (control X) to exit and (Y) to save file then enter to leave the file with the same name do not change the file name

• run (sudo reboot) on the terminal for the interfaces to take effect
• Then run router on the terminal shout look like bellow

• Then run the next line on terminal (sudo route add –net 172.0.0.0 netmask 255.0.0.0 gw 172.31.1.3 dev enp0s8)

• Then run route again it should look like bellow

• Then run (sudo services networking restart) to restard the network services again nothing will display after this command and password is enter

• Then to verify everything is working fine run (ifconfig) it should look like bellow

• Then run this tree line on terminal like the picture bellow
• sudo apt-get install -y iptables-persistent

• Then on the next two question select yes like bellow

• Run next line bellow and password if ask it will not display anything after you run the line
• sudo iptables -t nat -A POSTROUTING -o enp0s3 -j MASQUERADE

• Run next line bellow and password if as and it will look like the picture bellows
• sudo netfilter-persistent save

• Run next line bellow and password if as and it will look like the picture bellows
• sudo netfilter-persistent reload

• After all this reboot Virtual Machine and move to next step pfsense setup link (comming soon)