linux - Is there a way to map 3 ip addresses on diffrent server to a virtual ip address? -

there 3 servers, ip addresses 192.168.1.1, 192.168.1.2 , 192.168.1.3.

i want use ip 192.168.1.100 connect 1 of servers , if 1 not reachable, connection should go server.

ps:i knew way using name access server ,and detect , modify hosts file of client .

but there other way ,such config switcher or router.

thank ,and please forgive bad english .