SNA NRJE User/Programmer Reference Manual (30292-90006)

124 Chapter4
Job Output
Job and Output Management
CAUTION You can do this only in NRJE.SYS. File equations of this type apply only
to the logon group and account of the NRJE monitor stream job.
Always use a unique host jobname with this feature. Use of non-unique
host jobnames may cause data to be lost in an attempt to create
duplicate permanent files.
System Security Considerations
If the Lookup Table is used to route output to disk files, the node
manager should ensure that users are not able to direct output to files
for which they do not have legal access. Note that output is routed by
NRJE running as a batch job under
UserName.SYS . By obtaining the
form name of a record in the Lookup Table which directs output to a
disk file, a user can direct his output to this file, provided
UserName.SYS has write access to the file (regardless of whether the
user has access). To minimize the potential for abuse of system security,
the node manager should use the MPE ALTSEC or ALTGROUP commands
to ensure that only authorized users have read access to the Lookup
Table.
Starting Jobs on the HP 3000 (Reverse NRJE)
The special formid CMD is reserved by NRJE. It is used to cause NRJE
to stream a received data set rather than route the data set using file
equation attributes. To cause job output to be streamed, you must do
the following:
1. Route the output to a PUNCH device.
2. Prefix all MPE commands with an exclamation mark (!). The first
data record must be a valid MPE JOB card.
It is not necessary to add an entry for CMD in the Lookup Table to use
the reserved form. Also, the reserved form name CMD is used by all
logical punches to stream output, regardless of whether the Lookup
Table is in use.
Uses For Reverse NRJE
The following is a list of suggested uses of the Reverse NRJE feature:
• Scheduling HP 3000 jobs from the host.
• Querying the status of the HP 3000 from the host.
• Submitting jobs to remote or local HP 3000s to access data and/or
software available on those machines.
• Gaining access to HP 3000 communications facilities (NS/3000, X.25,
etc.).