On 11/24/2015 12:33 AM, Siva Prasad Nath wrote: > auto eth0 > iface eth0 inet static > address 192.168.50.2 > netmask 255.255.255.0 read this book, https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/ if you can't figure it out, hire a systems adminsitrator, or take a class in it. you're asking way too many elementary questions without any evidence you're trying to figure this out. -- john r pierce, recycling bits in santa cruz