@Bharathkumar B First comment out the modified IP address in /etc/hosts .. Dont remove these 2 lines 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 # 192.168.192.100 # Modified IP Don't panic if you can access the console as root run #ifconfig This will display your new IP and use that to acces ambari or whatever UI you. http://newIP:8080 The original IP address is not hard code in any config files ! ... View more