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South Platte Water Rights Management System workstations which they dial to access dbserver. For example. PC users dialing into Greeley must also have an account on Morerain, the workstation which resides in that office. SGI Application Account The user account for the UNIX SPWRMS application is a standard UNIX login. An addi- tional component in the search path of each UNIX user makes it easy to start the SPWRMS application. To create an account for a UNIX SPWRMS user, create a standard UNIX login and add the location of the SPWRMS application to the search path in the user's .login file. This location is currently lusr/projectls_plaue/bin. By default, a new user is a read-only user. If the user is to have permissions to modify data maintained by SPWRMS, these permissions must be added (please see Section 1.4, "Informix User Authorization." on page 5). PC Application Account The user account for the PC SPWRMS application is a special login that starts up the application when the user logs into the system. This kind of account does not allow the user to perform standard UNIX operations. only to run the PC SPWRMS application through the PC interface. Users need a separate account on the UNIX server in order to access SPWRMS through the PC application. On the database server workstation dbserver, logging into the PC user account does not start a standard UNIX shell. Instead, the login runs a script that sets some environment variables and calls the PC SPWRMS application. This is done by specifying the name of the SPWRMS script (rather than the UNIX shell of choice) in the user's entry in the letc/passwd file. On other workstations which PC users dial to access SPWRMS, such as 'morerain' in Greeley, logging into the PC user account also runs a script rather than the standard UNIX shell. However, on these remote workstations. the script does not call the SPWRMS appli- cation. Instead, the script performs an rlogin to dbserver, where the login sequence initiates the SPWRMS application on that workstation. All server sessions for the PC application run on dbserver. To create a PC user account on the UNIX workstations, create a home directory for the new user, then edit the file letc/passwd to provide an entry for the new user. The easiest way to create the new entry in letclpasswd is to copy the entry for an existing PC user and then modify the login, password, UID, name, and home directory as appropriate for the new user. Note that rather than starting a UNIX shell when this user logs in, this account will call the script rights.shell. This script performs different actions depending on the workstation on which it resides: 1) on dbserver, this script sets some environment variables and starts the PC SPWRMS server application, and 2) on other workstations which PC users dial to access the system, this script performs an rlogin to dbserver. This approach to PC user accounts was implemented to simplify and secure access via the PC application. However, it has one shortcoming. Since these users cannot perform stan- dard UNIX functions through a command-line interface, they cannot change their own 4 Administrators Manual