Specifications

Running from a Modem:
e.g.:
208.2.84.61 homer.somecompany.com homer
This should reduce the time it takes to make the first lookup.
In addition, incorrect settings of the Subnet Mask and Gateway address may result in connection
delays and failures. Verify with your Network Administrator that these settings are correct.
Running from a Modem:
When you connect to a network in which the servers reside via modem (using PPP or SLIP), your
computer acquires a temporary IP number for its operation. This temporary number may not be the
one your hostname maps to (if it maps to anything at all), so in this case, you must tell the servers to
communicate with you by IP alone. To do this, obtain your temporary IP number by opening your
modem connection window. This number will be used to set the hostname property for the GUI client.
To set the hostname for a browser with the Plugin, open the Java Plug-In Control Panel, and set
the hostname for the client by adding the following to "Java Run Time Parameters".
-Djava.rmi.server.hostname=<MY_HOST>
To set the hostname for the HotJava browser, append the following to the hotjava command line:
-Djava.rmi.server.hostname=<MY_HOST>
For example:
-Djava.rmi.server.hostname=153.66.140.1
Primary Network Interface Down:
The LifeKeeper GUI uses Remote Method Invocation (RMI) to maintain contact between the GUI
client and the GUI server. In nearly every case, contact is established over the primary network
interface to the server. This means that if the server's primary Ethernet interface goes down, contact
is lost and the GUI client shows that server state as Unknown.
The only solution to this problem is to bring the server's primary Ethernet interface up again.
Additionally, due to limitations in RMI, this problem cannot be overcome by using a multi-homed
server (server with multiple network interfaces).
No Route To Host Exception:
A socket could not be connected to a remote host because the host could not be contacted.
Typically, this means that some link in the network between the local server and the remote host is
down, or that the host is behind a firewall.
Unknown Host Exception:
The LifeKeeper GUI Client and Server use Java RMI (Remote Method Invocation) technology to
communicate. For RMI to work correctly, the client and server must use resolvable hostname or IP
244Troubleshooting