[keycloak-user] Authentication in services

Hi there, I'm trying to implement a feature and I don't know how. I have my keycloak running on local network in 192.168.X.Y:A and I have a website on 192.168.X.Y:B, in other words, same IP, different ports. What I want is to redirect the 192.168.X.Y:B to the keycloak authentication page and then redirect back to website. How should I do that? Best regards, Simão Silva