SNACONS: Download and install

Follow this procedure to install SNACONS on your OS/390 system:

1. Download the file snacon15.zip to your PC.

2. Use the following command to unzip the snacon15.zip file to produce an EBCDIC file called snacon15.xmt:
   pkunzip snacon15.zip

3. Upload the snacon15.xmt file from your PC to a TSO file named userid.SNAXMIT (where userid is your TSO userid). It is very importantthat you select these options when performing the upload:
   Binary, Fixed Length, Record Length 80

4. Use ISPF 3.2 to allocate a load library called SYS1.SNACONS: Specify a primary allocation of 5 tracks, 5 directory blocks, record format U, record length 0, and blocksize 6144.

5. Use this TSO command to copy the SNACONS load module into the new load library:
   RECEIVE INDA('userid.SNAXMIT')
   When prompted for restore parameters, enter:
   DA('SYS1.SNACONS')

   If you get an error message such as Received file appears not to be an Interactive Data Transmission Facility file, go back and double check your upload parameters. It is essential that the userid.SNAXMIT file has the attributes RECFM=FB, LRECL=80 !

6. Use this MVS command to APF-authorize your new load library:
   SETPROG APF,ADD,DSN=SYS1.SNACONS,VOL=volser

7. Add SYS1.SNACONS to the APF list (member IEAAPF00 or PROGxx in SYS1.PARMLIB) to ensure that the library remains authorized after each IPL.

8. Use ISPF Edit to create a new member SYS1.VTAMLST(SNACAPPL):

   SNACAPPL VBUILD TYPE=APPL
   SNACONS  APPL  AUTH=(ACQ),ACBNAME=SNACONS,PRTCT=SNAPASS
   

9. Use ISPF Edit to create a new member SYS1.PROCLIB(SNACONS):

   //SNACONS PROC
   //SNACONS EXEC PGM=SNACONS,PARM='SNACONS/SNAPASS',TIME=1440
   //STEPLIB  DD  DSN=SYS1.SNACONS,DISP=SHR
   

10. Use these commands to activate the SNACONS application:

    V NET,ACT,ID=SNACAPPL
    S SNACONS
    

11. Add SNACAPPL to your ATCCONxx member of SYS1.VTAMLST, and add COM='START SNACONS' to your COMMNDxx member of SYS1.PARMLIB. This ensures that SNACONS starts automatically after each IPL.

12. Add the following lines to your USSTABLE to allow users to logon to SNACONS by entering the CONSOLE command at the VTAM logon screen:

    CONSOLE  USSCMD CMD=CONSOLE,REP=LOGON,FORMAT=BAL
             USSPARM PARM=APPLID,DEFAULT='SNACONS'
             USSPARM PARM=LOGMODE
             USSPARM PARM=P1,REP=DATA
    

13. (Optional) If you wish to change the default command authorities and routing codes for SNACONS consoles, or to designate specific terminals as being exempt from RACF signon, run the SNACONS Customization job.

14. (Optional) Define a RACF OPERPARM segment for each user who will use SNACONS. The OPERPARM segment defines the OS/390 command authorities and routing codes for an individual user. Users whose RACF profiles do not contain an OPERPARM segment will be granted default command authority and routing codes.

15. (Optional) Activate the RACF OPERCMDS class and define profiles within the OPERCMDS class to restrict the use of specified MVS commands to individual users or groups.

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