[Fedora-directory-users] Class Loader

[Eddie C]

Technically the tunneling should work, but I remember having issues
with it. Even after making host file additions and making the tunnel
properly the LDAP connect was still having issues. I suggest getting
the port open otherwise you are just making it hard on yourself.


On Dec 19, 2007 9:27 AM,  <audunroe at tihlde.org> wrote:
> The saga continues..
>
> After finally getting the admin-server to run and just briefly verifying
> that the console would run from my windows machine but not being able to
> connect because of firewall issues, I'm now picking up the thread again.
>
> To briefly recap, there are firewall issues preventing me from connecting
> easily with the admin server on the machine running fedora-ds. Iow: I can
> reach the ldap port fine - but not the admin server. I have no control
> over the firewall, and getting an opening poked in it is turning out to
> be, if not difficult then at least time consuming. I've been trying to
> sneak around the problem by using ssh-tunneling for now. I can use this to
> successfully connect the client java console with the server. However,
> that's pretty much as far as I've been able to get.
>
> The Fedora Management Console opens and connects nicely. In the console
> view, I can see the rootnode of myldap.foo.com, as well as the ldap
> instance just beneath it and its "Server Group" node. However, if I expand
> this node and try to click on the "Administration Server" or "Directory
> Server" leafs, I get a long pause and then an error dialog saying: "Class
> Loader error: Failed to install a local copy of fedora-admserv-1.0.jar or
> one of its supporting files: Can not connect to
> http://myldap.foo.com:56789".
>
> Initially,I was thrown off by the class loader heading, assuming I'd left
> the jar out of the classpath. The jar it's requestion is indeed not not
> the classpath, however, the jar in question is not included in the
> original startconsole script either (meaning I have no idea how the client
> would find it). In any case I get the exact same error when the jar's on
> the cp as well. The client then goes on to try and download the jar -
> which will not work as the windows machine I'm running it on does not have
> open internet access - intranet only.
>
> However the errmsg also mentions connection problems, and there's a
> lengthy delay when clicking the nodes in question consistent with a
> connection attempt that's blocked by, say, a firewall. I've since verified
> with Ethereal that the console does indeed try to bypass my ssh tunnel and
> instead hits the admin server directly, an attempt which is of course
> blocked by the firewall. In addition, connections to the ldap port are
> also attempted, though this is not a problem as that port is actually
> open. Maybe the reason why I can get this far in the first place. However,
> could anyone confirm that the connection url (in my case ssh tunnel at
> localhost:56789) is only used for the initial connect, and that later the
> admin client may try to establish a direct link to the correct url of the
> servernode? If so, is there any possible workaround for this, or will I
> basically need a firewall-opening? Or could it be a dependency/classpath
> problem after all?
>
> --
> Regards,
> Audun
>
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