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Setting a static IP ensures your Raspberry Pi always uses the same address on your local network, making remote access and port forwarding more reliable. Follow these steps to configure a static IP:

Step 1: Identify Your Current IP Address  

Open the terminal and run:

hostname -I

This will display your Raspberry Pi’s current IP address.

Step 2: Find Your Router’s IP Address  

To get your router's IP, run:

ip r | grep default

 
The first IP in the output is your router’s gateway address.

Step 3: Get IP address of your DNS

cat /etc/resolv.conf     OR   grep "nameserver" /etc/resolv.conf

Step 4: Modify the DHCP Configuration  

Edit the DHCP client configuration file using:  

sudo nano /etc/dhcpcd.conf

Scroll to the bottom and add the following lines, replacing placeholders with actual values:  

interface [INTERFACE]
static_routers=[ROUTER IP]
static domain_name_servers=[DNS IP]
static ip_address=[STATIC IP ADDRESS YOU WANT]/24

Example:

interface eth0
static_routers=192.168.1.100/24
static domain_name_servers= 8.8.8.8
static ip_address=192.168.1.100/24

If using Wi-Fi, replace `eth0` with `wlan0`.

Step 5: Save and Apply Changes  

Press `CTRL+X`, then `Y`, and `Enter` to save the file. Restart your Raspberry Pi for the changes to take effect:  

sudo reboot

Your Raspberry Pi should now consistently use the assigned static IP address, ensuring seamless connectivity for projects requiring reliable networking. 🚀