Speed of Unix version of Jana2000

The speed of Unix version of Jana2000 is oftenly degraded because of using secure shell (ssh). When we log to a Unix server with ssh the connection is done through a secure encrypted channel. Usually the display address of the terminal we are connecting from is exported by ssh to the remote computer and the X11 graphics is then forwarded through a secure channel, too. This significantly slows down the performance of interactive jobs like listing through pull-down menus. The interactive job is very slow even with fast Unix workstation and fast X11 server. Assuming that users usually don't type into Jana window informations like passwords or credit numbers we suggest the following solution:

• Check whether your graphics is encrypted. This can be done by displaying your display address by command `echo $DISPLAY'. Secure display address looks like xxxx:10.0 , where xxxx is name of the Unix workstation you are connected to. Non-secure display address looks like yyyy:0 , where yyyy is name of the terminal you are connected from.
• Change the display address to a non-secure form. This is done by command (under the C-shell) `setenv DISPLAY yyyy:0' , where yyyy is name of the terminal you are connected from. After this all graphical applications started from this terminal window and their childrens, too, will use non-encrypted connection. In jana2000 it will approve by smooth behavior of menus comparable with the PC version.
• For changing the display only for Jana2000 but not for the next applications started from the same terminal window you can use a command like `(setenv DISPLAY yyyy:0; jana2000)&'. The brackets cause the command runs in a separate shell and the DISPLAY setting for the terminal window remains unchanged.