c# - asp.net:how to change Hosted URL into sub URL -

c# - asp.net:how to change Hosted URL into sub URL -

question how alter url sub url if have

http://www.abc.xyz.com want give alternative user alter login url like..... http://www.123.xyz.com

first url adds user , inquire new url dedicated particular user , follow users

is there possibility solve in asp.net (vb.net or c#)

c# asp.net vb.net localhost hosted