Monitoring an IP Camera using a Raspberry Pi (no internet)

Disable Screen Blanking

sudo raspi-config

Display Options > Screen Blanking

Update System

sudo apt update && sudo apt dist-upgrade -y

Install omxplayer and dnsmasq

sudo apt install omxplayer dnsmasq

DISCONNECT FROM NETWORK

Setup Static IP Address on eth0

sudo nano /etc/dhcpcd.conf

interface eth0
static ip_address=192.168.0.10/24

Restart dhcpcd Service

sudo systemctl restart dhcpcd

View Current IP Address

ip a

Move Current dnsmasq Settings

sudo mv /etc/dnsmasq.conf /etc/dnsmasq.conf.orig

Configure dnsmasq

sudo nano /etc/dnsmasq.conf

interface=eth0
dhcp-range=192.168.0.11,192.168.0.254,255.255.255.0,24h
address=/#/192.168.0.10
dhcp-leasefile=/var/lib/misc/dnsmasq.leases

Enable and Start dnsmasq Service

sudo systemctl daemon-reload
sudo systemctl enable dnsmasq
sudo systemctl start dnsmasq

CONNECT IP CAMERA

Monitor DHCP Leases

tail -f /var/lib/misc/dnsmasq.leases

Add Host Entry to dnsmasq

sudo nano /etc/dnsmasq.conf

dhcp-host=00:00:00:00:00:00,192.168.0.229

Restart dnsmasq Service

sudo systemctl daemon-reload
sudo systemctl restart dnsmasq

View IP Camera

omxplayer "rtsp://username:password@ip_of_camera:554/cam/realmonitor?channel=1&subtype=0"

Create Camera Service

sudo nano /etc/systemd/system/camera.service

[Unit]
Description=Camera
After=network.target
[Service]
Type=simple
User=root
Group=root
ExecStart=/usr/bin/omxplayer "rtsp://username:password@ip_of_camera:554/cam/realmonitor?channel=1&subtype=0"
Restart=always
RestartSec=10
[Install]
WantedBy=multi-user.target

Enable and Start camera service

sudo systemctl enable camera
sudo systemctl start camera

Enable Read-only File System

sudo raspi-config

Performance Options > Overlay FS