Hi,
I realise that there are lots of these posts but I have tried rooting through so many of them I’ve lost count - I think my particular issue is not unique but as I simply can’t draw in all of the threads of discussion to zero in on my problem I thought I’d post it here.
Basically, we have Windows 2003 Server box with Openfire 3.6.4 installed
I have run through the configuration for AD/SSO - pretty sure the AD setup worked as I have the list of groups/users I want listed. I have then performed the following steps for SSO;
setspn -A xmpp/pzms.issg.local@ISSG.LOCAL xmpp-openfire
ktpass -princ xmpp/pzms.issg.local@ISSG.LOCAL -mapuserxmpp-openfire@issg.local -pass * -ptype KRB5_NT_PRINCIPAL
Followed the notes here http://community.igniterealtime.org/docs/DOC-1060
KRB5.INI is in %windir% on client and server
Registry tweak applied on both
Strange thing is that this was working for me previously - and I’m not aware of changing anything - maybe moving to a new version of Spark?
When I configure the SSO tab on the client I can see the correct server name, but I get the following in the warn.log and no further
If anyone can help at all it’d be greatly appreciated
30-Aug-2011 12:02:27 org.jivesoftware.spark.util.log.Log warning
WARNING: Exception in Login:
SASL authentication failed:
– caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Clock skew too great (37))]
at org.jivesoftware.smack.sasl.SASLMechanism.authenticate(SASLMechanism.java:121)
at org.jivesoftware.smack.sasl.SASLGSSAPIMechanism.authenticate(SASLGSSAPIMechanis m.java:86)
at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentication.java: 319)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:203)
at org.jivesoftware.LoginDialog$LoginPanel.login(LoginDialog.java:1014)
at org.jivesoftware.LoginDialog$LoginPanel.access$1200(LoginDialog.java:219)
at org.jivesoftware.LoginDialog$LoginPanel$4.construct(LoginDialog.java:730)
at org.jivesoftware.spark.util.SwingWorker$2.run(SwingWorker.java:141)
at java.lang.Thread.run(Unknown Source)
Nested Exception:
javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Clock skew too great (37))]
at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(Unknown Source)
at org.jivesoftware.smack.sasl.SASLMechanism.authenticate(SASLMechanism.java:117)
at org.jivesoftware.smack.sasl.SASLGSSAPIMechanism.authenticate(SASLGSSAPIMechanis m.java:86)
at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentication.java: 319)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:203)
at org.jivesoftware.LoginDialog$LoginPanel.login(LoginDialog.java:1014)
at org.jivesoftware.LoginDialog$LoginPanel.access$1200(LoginDialog.java:219)
at org.jivesoftware.LoginDialog$LoginPanel$4.construct(LoginDialog.java:730)
at org.jivesoftware.spark.util.SwingWorker$2.run(SwingWorker.java:141)
at java.lang.Thread.run(Unknown Source)
Caused by: GSSException: No valid credentials provided (Mechanism level: Clock skew too great (37))
at sun.security.jgss.krb5.Krb5Context.initSecContext(Unknown Source)
at sun.security.jgss.GSSContextImpl.initSecContext(Unknown Source)
at sun.security.jgss.GSSContextImpl.initSecContext(Unknown Source)
… 10 more
Caused by: KrbException: Clock skew too great (37)
at sun.security.krb5.KrbTgsRep.(Unknown Source)
at sun.security.krb5.KrbTgsReq.getReply(Unknown Source)
at sun.security.krb5.internal.CredentialsUtil.serviceCreds(Unknown Source)
at sun.security.krb5.internal.CredentialsUtil.acquireServiceCreds(Unknown Source)
at sun.security.krb5.Credentials.acquireServiceCreds(Unknown Source)
… 13 more
Caused by: KrbException: Identifier doesn’t match expected value (906)
at sun.security.krb5.internal.KDCRep.init(Unknown Source)
at sun.security.krb5.internal.TGSRep.init(Unknown Source)
at sun.security.krb5.internal.TGSRep.(Unknown Source)
… 18 more