To determine if the local host will accept an X-windows
connection from the remote host, execute the following command while
logged on to the local host::
- xhost
You should see one of the following:
access control enabled, only authorized
clients can connect
INET:<<hostname>> <-- Repeated for each authorized
client
or:
access control disabled, clients can connect
from any host
If the remote host is not authorized to connect, you can add it to the
list of authorized clients using the following command:
- xhost + <fully qualified hostname of the remote
host>
For example:
# xhost + aixhost2.mydomain.ibm.com
aixhost2.mydomain.ibm.com being added to access control list
which can then be verified by executing:
# xhost
access control enabled, only authorized clients can connect
INET:aixhost2.mydomain.ibm.com
If you execute this command in a telnet session, you may see a message
similar to the following:
# xhost: must be on local machine to enable or disable access control.
This indicates that this command is only authorized from a local console
(i.e., not within a telnet session).
Next, you must export the display so that GUI screens generated on the
remote host will be displayed on the local host. To do this, execute the
following command on the remote host while logged in through the telnet
session from the local host:
export DISPLAY=<fully qualified hostname of local machine>
EXAMPLE:
You want to install WebSphere Application Server on unixhost2 from a
telnet session on unixhost1:
At a command prompt on unixhost1:
> xhost + unixhost2.mydomain.ibm.com
unixhost2.mydomain.ibm.com being added to access control list
At a command prompt on unixhost1:
> telnet unixhost2.mydomain.ibm.com
... log in using appropriate userid, and password
> export DISPLAY=unixhost1.mydomain.ibm.com:0
To verify that a GUI screen can be displayed on the local host execute:
> xclock
You should see an analog clock window open on your unixhost1 screen.
Install GUI screens generated from the WebSphere install will now be
displayed on the local host display screen.
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