System requirements:

• 8GB ram (required) but 4GB is enough for minimalist usage
• dual-core, Pentium and  higher configurations

Files to download

• TrueNAS: https://www.truenas.com/download-truenas-core/
• Rufus: https://rufus.ie/en/

Steps to follow:

• Create bootable USB drive of TreNAS.iso using rufus tool

1. Install Process

• Boot the  pendrive

• Select Install/Upgrade.

• Select the desired install drive.
• Next, set a password for the TrueNAS administrative account
• After following the steps to install, reboot the system and remove the install media.
• After booting up  find the web interface IP address

Ex: use http://10.238.15.194 in same network computer web browser

• The web interface

2. Selecting drive for storage and all other needs:

• select storage → pools

• Click add and select your drive and  mention your desired  name for drive
  caution: it will format your whole drive

3. create a user rather than root

• select Accounts→ users
• add user
• select all permissions
• select you storage
• select your user groups

Nextcloud Install Process

• In TrueNAS nextcloud service is a plugin
• First install it
• you can find it in plugin→ Nextcloud → Install
• un-select NAT and select DHCP

• It takes time 10 - 20 min to finish
• After use the IP-address and port number mentioned in Admin portal column
• username and password will be provided in post install notes - picture mentioned below

• use ncadmin and mentioned password to login
• next create newuser for login

SAMBA share

• select sharing → windows share(SAMBA)→ Add → select your pool → and provide your name, password and give all permission

Portforwarding to make your TrueNAS online:

• login router username and password
• select forwarding -> virtual server -> add your TrueNAS IP in IPaddress feild
• add 8088 (default) for  internal and service port 
• select protocol both  TCP & UDP  and select status enabled
• And save it