Switch to SpeakEasy.net DSL

The Modular Manual Browser

Home Page
Manual: (SunOS-4.1.3)
Apropos / Subsearch:
optional field

SNAP(1)                     General Commands Manual                    SNAP(1)

       snap - SunView application for system and network administration


       Available  only  on  Sun  386i systems running a SunOS 4.0.x release or
       earlier.  Not a SunOS 4.1 release feature.

       snap simplifies the execution of a  variety  of  system  administration
       tasks in the user-friendly environment of a SunView window.  snap eases
       the following tasks: personal or centralized backup and restoration  of
       files, management of users accounts and user groups, software installa-
       tion, network administration, and management of devices such as  print-
       ers, terminals, modems, and the peripheral box containing disk and tape

       Anyone can use snap, but the operations allowed depend on the secondary
       group  membership  of the user at the time that snap is invoked.  There
       are four secondary user groups specifically recognized by snap, member-
       ship  in  which  bestows  various powers over the corresponding area of
       system administration. These are:

       accounts  users and user groups.

       devices   printers, terminals, modems, and peripheral box.

       operator  centralized backup and restoration of files, and installation
                 of software.

       networks  domains  and systems, including the New User Accounts feature
                 and Automatic System Installation features.

       A user's snap privileges depend upon which of these four groups  he  or
       she  belongs  to.  If they get an account through New User Accounts, or
       if an administrator adds them using the defaults, new users become mem-
       bers  of  the  primary  group users, and are given all snap privileges.
       This can be changed by changing the secondary group membership  of  the
       primary  group  users  with snap.  Note: this does not change the group
       membership of existing users, but only of  new  users.   The  secondary
       group membership of existing users must be changed individually.

       An  administrator  using  snap  can create new user accounts and remove
       existing ones, change a user's  snap  privileges,  and  control  users'
       access  to  their accounts.  New users can create their own accounts as
       they first login if the New  User  Accounts  feature  is  activated  as
       described under Networks below.

       Epson  and Epson-like printers (most printers using the Centronics par-
       allel interface), text serial printers, and HP Laserjet and  compatible
       printers  can be administered with snap .  The supported terminal types
       are vt-100 and wyse.  The supported modem types are Hayes Smartmodem or
       a  modem that is compatible with Hayes Smartmodem.  For all other types
       of terminals, modems, or printers, the software must be configured man-
       ually. See for details.

       snap  can  add or remove, display and change information about, or dis-
       able or enable either a printer, a terminal, a modem, or the peripheral
       box  containing disk and tape drives.  Devices not added using snap can
       not be manipulated with snap.

       Regardless of the primary or secondary group membership of users,  they
       can backup and restore their own files with snap.

       Backup  and removal of all files can be done by members of the operator

       Much of the network setup must be done when the first  machine  in  the
       network, the master server, is started up, and when each client is con-
       nected and booted for the first time.  Some  of  this  information  can
       never be changed.

       Once  the  master  and slave servers are installed, snap can be used to
       add and assign diskless clients to servers, remove them,  modify  their
       network  roles,  and  perform  all  the  functions  listed  above under
       Accounts, Devices, and Operator on any system in the network.

       If desired, you can also enable or disable the feature  that  allows  a
       user  to  create  his own account while logging in (New User Accounts),
       and the automatic system installation feature,  two  possible  security

       Sun386i System and Network Administration

                               19 February 1988                        SNAP(1)