[jcifs] UnknownHostException

Michael B Allen miallen at ioplex.com
Thu Dec 27 23:19:08 GMT 2007

The failover behavior only works with WINS. Look at the DnsSrv patch
in the patches directory. It uses JNDI to do DNS SRV lookups for domain


On Thu, 27 Dec 2007 16:05:07 -0500
"Kimberly Ennis" <kletco at gmail.com> wrote:

> We only specify jcifs.smb.client.domain, we do not specify a WINS server.
> When connecting using jCIFS if one of our two domain controllers goes down,
> users are kicked out of the system and no new users can get in - they see a
> "java.net.UnknownHostException: Failed to negotiate with a suitable domain
> controller for DOMAIN".  My understanding was that when one of our domain
> controllers is down, the system should fall back to the second domain
> controller.  This does not appear to be the case.  When we restart
> websphere, the problem goes away.  I am assuming this is because the domain
> controller list is refreshed at that point.
> I am using jCifs version 1.2.9.  Would an upgrade fix this issue?

Michael B Allen
PHP Active Directory SPNEGO SSO

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