Installation guide

Installing the AlphaNET Software Page 3-5
AlphaNET Installation Guide, Revision 05
Adding the VTSER Background Job
A background job is required to execute VTSER, the virtual terminal server program. If you do not wish
to have other computers connect virtual terminals to your computer, you do not need to set up this job.
1. Add the jobname VTSER to the JOBALC statement.
2. Define a TRMDEF statement for a terminal named VTSER using the PSEUDO interface and
NULL terminal driver.
3. Add a SETJOB statement to set up the job, attaching it to terminal VTSER, giving it at least
200K and having it run the VTSER.JIN initialization file. (If you are going to use sharable
memory (see above), you can give the VTSER job as little as 32K.)
4. Create a VTSER.JIN file that logs VTSER into a disk account (DSK0:[1,4] is the default), and
optionally specifies a password that must be given when making a virtual terminal connection.
The VTSER TRMDEF will look like this:
TRMDEF VTSER,PSEUDO,NULL,100,100,100
Unless you are using sharable memory, VTSER allocates the memory for its virtual terminal connections
out of its own partition. In this case, you must allocate sufficient memory to VTSER for its own needs
plus the needs of as many simultaneous virtual terminal connections as you wish to support. A minimum
of 200K should be allocated, with 512K or more preferred. If you are using sharable memory, 32K is
sufficient. The SETJOB statement will look like this:
SETJOB VTSER,VTSER,32K,VTSER.JIN
The VTSER.JIN job initialization file must log the job in and initialize VTSER. It may look something
like this:
:T
LOG DSK0:[1,4]
VTSER
If you are using sharable memory, the VTSER initialization line must contain a /S option:
VTSER/S
VTSER and Network Security
Users connected to your computer via the virtual terminal server program VTSER have essentially
the same operational capabilities as direct users. Your computer operator should take steps to
insure that only authorized persons have access to your computer over the network.
To restrict access to your computer by virtual terminals, you can specify a computer access password to
be requested each time someone tries to connect to your computer with a virtual terminal. This password
is in addition to the normal login password.
The password is entered immediately following the VTSER command located in the VTSER job
initialization file VTSER.JIN. The file will look something like this: