Netdata - Real-Time Monitoring

# Automatic installation (one command)
wget -O /tmp/netdata-kickstart.sh https://get.netdata.cloud/kickstart.sh
sudo sh /tmp/netdata-kickstart.sh --stable-channel --dont-start-it

# Start and enable
sudo systemctl start netdata
sudo systemctl enable netdata

# Verify
sudo systemctl status netdata

# Open the port in firewall only from your IP
sudo ufw allow from 1.2.3.4 to any port 19999

sudo nano /etc/nginx/sites-available/netdata

server {
    listen 80;
    server_name monitor.yourdomain.com;

    # Basic authentication (optional but recommended)
    auth_basic "Monitor";
    auth_basic_user_file /etc/nginx/.htpasswd;

    location / {
        proxy_pass http://127.0.0.1:19999;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

sudo ln -s /etc/nginx/sites-available/netdata /etc/nginx/sites-enabled/
sudo nginx -t && sudo systemctl reload nginx

# Create user for authentication
sudo htpasswd -c /etc/nginx/.htpasswd admin

# Main file
sudo nano /etc/netdata/netdata.conf

[global]
    # Reduce retention (save disk)
    history = 3600       # 1 hour of history in RAM

[web]
    # Accept connections only from localhost (use reverse proxy)
    bind to = 127.0.0.1

[plugins]
    # Disable unused plugins
    tc = no
    idlejitter = no

sudo systemctl restart netdata

sudo nano /etc/netdata/health_alarm_notify.conf

# Email
SEND_EMAIL="YES"
DEFAULT_RECIPIENT_EMAIL="your@email.com"
SENDMAIL_SENDER="netdata@yourserver.com"

SEND_TELEGRAM="YES"
TELEGRAM_BOT_TOKEN="123456:ABC-DEF..."
DEFAULT_RECIPIENT_TELEGRAM="@yourchannel"
# or numeric chat ID: "123456789"

sudo /usr/libexec/netdata/netdata-updater.sh
# or
sudo apt upgrade netdata -y

# Follow registration wizard at https://app.netdata.cloud
# Then connect the node with provided token
sudo netdata-claim.sh -token=TOKEN -rooms=ROOM_ID -url=https://app.netdata.cloud

sudo /usr/libexec/netdata/netdata-uninstaller.sh --yes