Configure NGiNX nano /etc/nginx/conf.d/sso.domain.com.conf server { listen 443 ssl http2; server_name sso.domain.com; ssl_certificate /etc/nginx/ssl/sso.domain.com/fullchain.crt; ssl_certificate_key /etc/nginx/ssl/sso.domain.com/key; ssl_session_timeout 5m; location / { proxy_pass http://127.0.0.1:8080/; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Server $host; proxy_set_header X-Forwarded-Port $server_port; proxy_set_header X-Forwarded-Proto $scheme; } } Configure Keycloak The following is needs to be ran for Keycloak to work behind nginx cd bin ./jboss-cli.sh 'embed-server,/subsystem=undertow/server=default-server/http-listener=default:write-attribute(name=proxy-address-forwarding,value=true)'