Password-On-The-Command-Line  Suppression  
OptionYK/370   supports  the  password-on-the-command-line  suppression  system   generation  option  through  which  an  installation  may  now  prevent  
disclosure of virtual machine and minidisk passwords to unauthorized
personnel. This is accomplishedby   disallowing  passwords  entered  on  the  same   line  as  LOGON/AUTOLOG   and  LINK   commands.  When   this  option  is  
selected, passwords must be entered so that theyare   not  displayed  (as  
is the case with the3270   display  family)   or  so  that  they  are  typed  upon  
a .ask (as is the case with the 2141 terminal)•   If  this  option  is  
chosen, installation users are not able to include passwords on thesame   line  as   their  LOGON/AUTOLOG   and  LINK   commands.   A  virtual  machine   may   also  request  CP   to  perform  this  same   service  
for LINK andAUTOLOG   commands   passed  to  CP   from  a  virtual  machine   via  
theDIAGNOSE   X'8'   instruction  by   turning  on  the  high  order  bit  in  By   (the  length  register)  e   CMS   has  also  been  modified  to  request  
suppression of passwords for LINK andAUTOLOG   co  ••   ands  entered  at  the  
terminal.Password   suppression  is  not  required  by   CftS   for  LINK   or  AUTOLOG   commands  entered  from  a  module  or  EXEC.   The  password-on-the-command-line  suppression  option  is  system   generation  time  by   the  new   SYSJBL   macro  instruction.  
exists to allow the operator toquery,   set,  or  alter  
generated value.
specified atNo   facility  
thesystem   Messages  generated  when  the  password  is  entered  on  the  same   line  as  a  LOGON   or  LINK  command   are  sent  to  the  issuer  of  that  command.   YKBLOK   COpy   has  been  modified  to  reflect  support  of  the  
password-on-the-command- line suppression option.A   new  control  tlock,   JPSCBLOK,   is  used  to  control  this  option.  SBL   AND  PROGRAM   LOGIC   PUBLICATIONS   The  following  publications  contain  information  
password-on-the-command- line suppression option:GC20-1800   Introduction  GC20-1801   Planning  and  System   Generation  Guide  GC20-1806   Operator's   Guide  GC20-1801   System   Programmer's   Guide  GC20-1808   System   Messages  GC20-1813   Glossary  and  Kaster   Index  GC20-1819   CMS   User's   Guide  GC20-1820   CP   Command   Reference  for  General  Users   GX20-1926   Quick  Guide  Pocket   Reference  S120-0884   Data  Areas  and  Control   Block  Logic  S120-0886   System   Logic  and  Problem   Determination  Guide,  Vol.   1  1-20   IBM   V8/370   Release  6  Guide  
on the
Option
disclosure of virtual machine and minidisk passwords to unauthorized
personnel. This is accomplished
selected, passwords must be entered so that they
is the case with the
a .ask (as is the case with the 2141 terminal)
chosen, installation users are not able to include passwords on the
for LINK and
the
suppression of passwords for LINK and
terminal.
exists to allow the operator to
generated value.
specified at
the
password-on-the-command- line suppression option.
password-on-the-command- line suppression option:
on the
 
             
            





























































































































