mrinalraj

Scenario

I recently needed to establish a static IP for my Python project to facilitate SSH access. The issue I faced was that DHCP kept assigning a new IP every time my system rebooted.

I discovered that we can set the IP address to be static, and the steps for doing so are outlined below:

About:

dhcpcd.conf:

Location: /etc/dhcpcd.conf Usage: DHCP client daemon is used towards the client side to configure the interfaces.

while

dhcpd.conf

Location: /etc/dhcp/dhcpd.conf Usage: It acts as server for dynamically assigning IPs to devices in the network

Step 0: Setup dhcpcd:

Install: sudo apt-get install dhcpcd Enable: sudo systemctl enable dhcpcd sudo systemctl start dhcpcd Verify: sudo systemctl status dhcpcd

Step 1: Open the dhcpcd.conf file

sudo nano /etc/dhcpcd.conf

If your project uses Wi-Fi, proceed with the following steps; otherwise, replace the interface name accordingly. interface wlan0 static ip_address=your_desired_static_ip/24 static routers=your_router_ip static domain_name_servers=your_dns_server_ip or interface wlan0 static ip_address=your_desired_static_ip/24 static routers=192.168.0.1 static domain_name_servers=192.168.0.1 8.8.8.8

Replace “your_desired_static_ip”, “your_router_ip”, and “your_dns_server_ip” with the appropriate values for your network. Ensure you choose an IP address that is not already in use on your network.

How to get router ip: Refer whats my ip address?

How to get the dns server: On terminal do nslookup google.com

Note: you need to have package 'dnsutils' installed. (sudo apt-get install dnsutils)

Step 2: Restart the dhcp service

sudo service dhcpcd restart or do sudo reboot