Include ${PWD}/proxy_backend.conf GnuTLSCache ${BACKEND_CACHE} ServerName ${BACKEND_HOST} GnuTLSEnable On GnuTLSCertificateFile server/x509.pem GnuTLSKeyFile server/secret.key GnuTLSPriorities NORMAL GnuTLSClientCAFile authority/x509.pem GnuTLSClientVerify require