Install and Configure NetBox IPAM on Ubuntu

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Prerequisites

• Deploy a fully updated Ubuntu 20.04 LTS at Vultr with at least 2GB of RAM and 1 vCPU cores.
• Create a non-root user with sudo access.

1. Install and configure PostgreSQL

Install PostgreSQL: sudo apt install postgresql libpq-dev -y

Start the database server: sudo systemctl start postgresql

Enable the database server to start automatically on reboot: sudo systemctl enable postgresql

Change the default PostgreSQL password: sudo passwd postgres

Switch to the postgres user: su - postgres

Log in to PostgreSQL: psql

Create database netbox: CREATE DATABASE netbox;

Create user netbox with password my_strong_password. Use a strong password in place of my_strong_password: CREATE USER netbox WITH ENCRYPTED password 'my_strong_password';

Grant all the privileges on the netbox database to the netbox user: GRANT ALL PRIVILEGES ON DATABASE netbox to netbox;

Exit PostgreSQL: \q

Return to your non-root sudo user account: exit

2. Install Redis®

Redis® is an in-memory key-value store. NetBox uses it for caching and queuing.

Install Redis®: sudo apt install -y redis-server

3. Install and configure NetBox

It's recommended to install NetBox from the official git repository to allows for seamless upgrades by re-pulling the master branch.

Install all the required packages: sudo apt install python3 python3-pip python3-venv python3-dev build-essential libxml2-dev libxslt1-dev libffi-dev libpq-dev libssl-dev zlib1g-dev git -y

Update pip to the latest version: sudo pip3 install --upgrade pip

We'll use /opt/netbox/ as the installation directory. Create directory /opt/netbox/ and change to /opt/netbox/ directory: sudo mkdir -p /opt/netbox/ && cd /opt/netbox/

Clone NetBox from official git repository to the current directory: sudo git clone -b master https://github.com/netbox-community/netbox.git .

Create a system user named netbox: sudo adduser --system --group netbox

Grant user netbox ownership of /opt/netbox/netbox/media/: sudo chown --recursive netbox /opt/netbox/netbox/media/

Browse to the /opt/netbox/netbox/netbox/ directory: cd /opt/netbox/netbox/netbox/

Copy example configuration file configuration.example.py to a configuration file configuration.py that we will use to configure the project: sudo cp configuration.example.py configuration.py

Create a symbolic link of Python binary: sudo ln -s /usr/bin/python3 /usr/bin/python

Generate a random SECRET_KEY of at least 50 alphanumeric characters: sudo /opt/netbox/netbox/generate_secret_key.py

You will get a random secret similar to the below example. Copy it and save it somewhere. You will need it in the configuration file: -^%YEl*Q2etCR6$kNG70H=&sM(45XvJaBWdf3O)inZ@L9j8_w1

Open and edit the configuration file configuration.py: sudo nano /opt/netbox/netbox/netbox/configuration.py

The final file should have the following configurations:

ALLOWED_HOSTS = ['*']

DATABASE = {
    'NAME': 'netbox',                           # Database name you created
    'USER': 'netbox',                           # PostgreSQL username you created
    'PASSWORD': 'my_strong_password',           # PostgreSQL password you set
    'HOST': 'localhost',                        # Database server
    'PORT': '',                                 # Database port (leave blank for default)
}

SECRET_KEY = '-^%YEl*Q2etCR6$kNG70H=&sM(45XvJaBWdf3O)inZ@L9j8_w1'

Run the upgrade script: sudo /opt/netbox/upgrade.sh

Enter the Python virtual environment: source /opt/netbox/venv/bin/activate

Go to /opt/netbox/netbox directory: cd /opt/netbox/netbox

Create a superuser account: python3 manage.py createsuperuser

Reboot the system to apply the changes: sudo reboot

4. Configure Gunicorn

Copy /opt/netbox/contrib/gunicorn.py to /opt/netbox/gunicorn.py: sudo cp /opt/netbox/contrib/gunicorn.py /opt/netbox/gunicorn.py

5. Configure Systemd

Copy contrib/netbox.service and contrib/netbox-rq.service to the /etc/systemd/system/ directory: sudo cp /opt/netbox/contrib/*.service /etc/systemd/system/

Reload daemon to enable the Systemd changes: sudo systemctl daemon-reload

Start the netbox and netbox-rq services: sudo systemctl start netbox netbox-rq

Enable the services to initiate at boot time: sudo systemctl enable netbox netbox-rq

6. Configure Nginx Web Server

Install Nginx web server: sudo apt install -y nginx

Copy NetBox Nginx configuration file nginx.conf to /etc/nginx/sites-available/netbox: sudo cp /opt/netbox/contrib/nginx.conf /etc/nginx/sites-available/netbox

Edit file netbox: sudo nano /etc/nginx/sites-available/netbox

Replace all the files content with the below code. Modify the server_name value with your server IP address:

server {
    listen 80;

    # CHANGE THIS TO YOUR SERVER'S NAME
    server_name 192.0.2.10;

    client_max_body_size 25m;

    location /static/ {
        alias /opt/netbox/netbox/static/;
    }

    location / {
        proxy_pass http://127.0.0.1:8001;
        proxy_set_header X-Forwarded-Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Delete /etc/nginx/sites-enabled/default: sudo rm /etc/nginx/sites-enabled/default

Create a symlink in the sites-enabled directory to the netbox configuration file: sudo ln -s /etc/nginx/sites-available/netbox /etc/nginx/sites-enabled/netbox

Restart nginx service to enable the new configurations: sudo systemctl restart nginx

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