[keycloak-user] Connection Reset using LDAPS

Thomas Barcia TBarcia at wfscorp.com
Fri Feb 10 16:21:53 EST 2017 

In my Keycloak 2.2.1 environment we see continuous yet erratic errors in connecting to AD via LDAPS.  For example, if I search for a user I may get a general server error and then click search again and receive results.

I tried adding the following to the startup:

-Djdk.tls.client.protocols=TLSv1

Based on an article regarding java8 and AD but it does not appear to have made any difference.

The error:

14:56:20,143 ERROR [org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager] (default task-21) Could not query server using DN [OU=redacted,DC= redacted,DC=com] and filter [(&(UserPrincipalName=limttestio)(objectclass=person)(objectclass=organizationalPerson)(objectclass=user))]: javax.naming.CommunicationException: simple bind failed: <ldap servername>:636 [Root exception is java.net.SocketException: Connection reset]
        at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:219)
        at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2788)
        at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:319)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:192)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:210)
        at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:153)
        at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:83)
        at org.jboss.as.naming.InitialContext.getDefaultInitCtx(InitialContext.java:114)
        at org.jboss.as.naming.InitialContext.init(InitialContext.java:99)
        at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
        at org.jboss.as.naming.InitialContext.<init>(InitialContext.java:89)
        at org.jboss.as.naming.InitialContextFactory.getInitialContext(InitialContextFactory.java:43)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
        at javax.naming.InitialContext.init(InitialContext.java:244)
        at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager.createLdapContext(LDAPOperationManager.java:473)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager.execute(LDAPOperationManager.java:535)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager.search(LDAPOperationManager.java:166)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPIdentityStore.fetchQueryResults(LDAPIdentityStore.java:160)
        at org.keycloak.federation.ldap.idm.query.internal.LDAPQuery.getResultList(LDAPQuery.java:165)
        at org.keycloak.federation.ldap.idm.query.internal.LDAPQuery.getFirstResult(LDAPQuery.java:176)
        at org.keycloak.federation.ldap.LDAPFederationProvider.loadLDAPUserByUsername(LDAPFederationProvider.java:510)
        at org.keycloak.federation.ldap.LDAPFederationProvider.loadAndValidateUser(LDAPFederationProvider.java:284)
        at org.keycloak.federation.ldap.LDAPFederationProvider.validateAndProxy(LDAPFederationProvider.java:111)
        at org.keycloak.models.UserFederationManager.validateAndProxyUser(UserFederationManager.java:152)
        at org.keycloak.models.UserFederationManager.getUserById(UserFederationManager.java:217)
        at org.keycloak.protocol.oidc.TokenManager.validateToken(TokenManager.java:118)
        at org.keycloak.protocol.oidc.TokenManager.refreshAccessToken(TokenManager.java:223)
        at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.buildRefreshToken(TokenEndpoint.java:298)
        at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.build(TokenEndpoint.java:126)
        at sun.reflect.GeneratedMethodAccessor410.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)
        at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)
        at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:138)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:107)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:133)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:101)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:395)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:202)
        at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221)
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
        at org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:90)
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
        at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
        at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
        at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
        at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
        at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
        at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
        at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
        at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
        at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
        at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
        at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
        at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
        at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:209)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
        at sun.security.ssl.InputRecord.read(InputRecord.java:503)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
        at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)
        at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
        at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
        at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
        at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:426)
        at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:399)
        at com.sun.jndi.ldap.LdapClient.ldapBind(LdapClient.java:359)
        at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:214)
        ... 78 more

14:56:20,148 ERROR [io.undertow.request] (default task-21) UT005023: Exception handling request to /auth/realms/redacted/protocol/openid-connect/token: org.jboss.resteasy.spi.UnhandledException: org.keycloak.models.ModelException: LDAP Query failed
        at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76)
        at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:212)
        at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:168)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:411)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:202)
        at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221)
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
        at org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:90)
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
        at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
        at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
        at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
        at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
        at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
        at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
        at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
        at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
        at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
        at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
        at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
        at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
        at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.keycloak.models.ModelException: LDAP Query failed
        at org.keycloak.federation.ldap.idm.query.internal.LDAPQuery.getResultList(LDAPQuery.java:169)
        at org.keycloak.federation.ldap.idm.query.internal.LDAPQuery.getFirstResult(LDAPQuery.java:176)
        at org.keycloak.federation.ldap.LDAPFederationProvider.loadLDAPUserByUsername(LDAPFederationProvider.java:510)
        at org.keycloak.federation.ldap.LDAPFederationProvider.loadAndValidateUser(LDAPFederationProvider.java:284)
        at org.keycloak.federation.ldap.LDAPFederationProvider.validateAndProxy(LDAPFederationProvider.java:111)
        at org.keycloak.models.UserFederationManager.validateAndProxyUser(UserFederationManager.java:152)
        at org.keycloak.models.UserFederationManager.getUserById(UserFederationManager.java:217)
        at org.keycloak.protocol.oidc.TokenManager.validateToken(TokenManager.java:118)
        at org.keycloak.protocol.oidc.TokenManager.refreshAccessToken(TokenManager.java:223)
        at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.buildRefreshToken(TokenEndpoint.java:298)
        at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.build(TokenEndpoint.java:126)
        at sun.reflect.GeneratedMethodAccessor410.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)
        at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)
        at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:138)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:107)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:133)
        at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:101)
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:395)
        ... 37 more
Caused by: org.keycloak.models.ModelException: Querying of LDAP failed org.keycloak.federation.ldap.idm.query.internal.LDAPQuery at 1c8e5a6
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPIdentityStore.fetchQueryResults(LDAPIdentityStore.java:169)
        at org.keycloak.federation.ldap.idm.query.internal.LDAPQuery.getResultList(LDAPQuery.java:165)
        ... 58 more
Caused by: javax.naming.CommunicationException: simple bind failed: <ldaps servername>:636 [Root exception is java.net.SocketException: Connection reset]
        at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:219)
        at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2788)
        at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:319)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:192)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:210)
        at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:153)
        at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:83)
        at org.jboss.as.naming.InitialContext.getDefaultInitCtx(InitialContext.java:114)
        at org.jboss.as.naming.InitialContext.init(InitialContext.java:99)
        at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
        at org.jboss.as.naming.InitialContext.<init>(InitialContext.java:89)
        at org.jboss.as.naming.InitialContextFactory.getInitialContext(InitialContextFactory.java:43)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
        at javax.naming.InitialContext.init(InitialContext.java:244)
        at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager.createLdapContext(LDAPOperationManager.java:473)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager.execute(LDAPOperationManager.java:535)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPOperationManager.search(LDAPOperationManager.java:166)
        at org.keycloak.federation.ldap.idm.store.ldap.LDAPIdentityStore.fetchQueryResults(LDAPIdentityStore.java:160)
        ... 59 more
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:209)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
        at sun.security.ssl.InputRecord.read(InputRecord.java:503)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
        at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)
        at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
        at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
        at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
        at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:426)
        at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:399)
        at com.sun.jndi.ldap.LdapClient.ldapBind(LdapClient.java:359)
        at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:214)
        ... 78 more
*** This communication has been sent from World Fuel Services 
Corporation or its subsidiaries or its affiliates for the intended recipient 
only and may contain proprietary, confidential or privileged information. 
If you are not the intended recipient, any review, disclosure, copying, 
use, or distribution of the information included in this communication 
and any attachments is strictly prohibited. If you have received this 
communication in error, please notify us immediately by replying to this 
communication and delete the communication, including any 
attachments, from your computer. Electronic communications sent to or 
from World Fuel Services Corporation or its subsidiaries or its affiliates 
may be monitored for quality assurance and compliance purposes.***

More information about the keycloak-user mailing list