After boot up the raspberry pi, there are few things need to do to suit your usage style:
1. Change the default login password
passwd
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2. Change static ip address
Make a backup of the original file
sudo cp /etc/network/interfaces /etc/network/interfaces.old
Edit the file
sudo nano /etc/network/interfaces
Comment below line
#iface eth0 inet dhcp
Add below lines according to your network environment:
iface eth0 inet static
#your static IP
address 192.168.1.101
#your gateway IP
gateway 192.168.1.1
netmask 255.255.255.0
#your network address “family”
network 192.168.1.0
broadcast 192.168.1.255
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Once finish, save the file by pressing Ctrl+X–>Y–>Enter.
Restart the networking using below command. Once successful, your current Putty connection will be terminated, where u need to start new Putty session using your static ip.
sudo /etc/init.d/networking restart