How to set domain-name on Cisco Devices ?

IF YOU WANT to change the ip domain-name on Cisco,you need to login the config mode first and then

oslo-router(config)#ip domain ?

lookup Enable IP Domain Name System hostname translation

name Define the default domain name

oslo-router(config)#ip domain-n

oslo-router(config)#ip doma

oslo-router(config)#ip domain-name my.local