Hi Daniel, Thanx for the assistance! The problem was located in the certlogin-users.properties and certlogin-roles.properties. The username should be: "CN\=test,\ OU\=test,\ O=\test,\ L=\test,\ ST\=test,\ C\=NL". This means escaping all "," and "=" characters, otherwise the user is not found. Also the final configuration looks like this: | <application-policy name = "CertLogin"> | <authentication> | <login-module code="org.jboss.security.auth.spi.BaseCertLoginModule" | flag = "required"> | <module-option name="password-stacking">useFirstPass</module-option> | <module-option name="securityDomain">java:/jaas/CertLogin</module-option> | <module-option name="verifier">org.jboss.security.auth.certs.AnyCertVerifier</module-option> | </login-module> | <login-module code="org.jboss.security.auth.spi.UsersRolesLoginModule" | flag = "required"> | <module-option name="password-stacking">useFirstPass</module-option> | <module-option name="defaultUsersProperties">props/certlogin-users.properties</module-option> | <module-option name="defaultRolesProperties">props/certlogin-roles.properties</module-option> | <module-option name="usersProperties">props/certlogin-users.properties</module-option> | <module-option name="rolesProperties">props/certlogin-roles.properties</module-option> | </login-module> | </authentication> | </application-policy> | Regards, Hans View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4261030#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...