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- Chapter - Introduction
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- WHAT IS !SIMNET?
- The program !SimNet is a Network Manager. It allows the
- administrator of a network to perform the following main tasks:
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- • View and edit password files;
- • Determine resources used by users; and
- • View the network topology.
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- !SimNet has been designed to allow easy manipulation of
- password data for groups of users, as opposed to the single user
- orientation of the Level 4 !Manager program. It presents password
- file data in a table much like a spreadsheet. System administrators
- can perform multiple edits and value replications to quickly create
- password files for large numbers of users.
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- The program is designed to allow the rapid generation of new
- password files by importing data in a number of formats, such as
- CSV and TAB files. These formats can be generated from text
- editors, databases or spreadsheets. Thus the administrator is
- allowed to create all password data in his or her favourite tool and
- then import the data into !SimNet to create a valid Level 4
- password file. Any fields not specified in the imported file are
- assigned default values.
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- Once imported, field values across a range of users can be
- modified in one operation. For example, on import the per user
- disk space allocation may be 512KBytes. To change this for a
- subset of 100 users, the values are marked in the spreadsheet
- display, the first value is altered to a new value, say 2MBytes, and
- the replicate option is chosen from the edit menu to copy the new
- value to all marked cells.
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- When a network is up and running, the administrator needs
- access to status information to ensure smooth operation
- continues. !SimNet provides details on a number of useful
- statistics. On the issue of security, !SimNet provides counts of the
- number of users with 'system' privilege and the number of users
- without passwords. It will also highlight such users in the
- spreadsheet display.
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- The password file is not the only location of useful maintenance
- information. !SimNet will also analyse disk usage to provide a per
- user report to help identify a) users hogging space; and b) users
- who have not created any files at all. Another useful statistic is the
- last time an account was used, which can be used to find very old
- accounts that can be removed from the system.
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- Sometimes knowledge of the machines connected on a network
- becomes out-of-date. A useful facility is to provide a graphical
- representation of the network. !SimNet will display a picture of
- each machine found on directly connected networks and for each
- will show the machine type, the station number and the network
- number. This map can be output to an attached printer and used
- as a record. (Note: this will be extended in future releases to allow
- real-time monitoring of the network to identify crashed machines
- raising appropriate alarms.)
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- !SimNet is an application which operates under RISCOS 3.1 or
- higher. It conforms to the Application Style Guide, which to the
- user means that it employs a style of operation similar to other
- RISCOS applications. Windows, Dialogue Boxes, Menus, Help
- and Hot Keys are all used in a standard way. On-line help is
- available through the !Help application and additional help may be
- displayed in a browse window. !SimNet employs the Fileserver
- Protocol Interface defined in the Programmer's Reference Manual,
- Section 48.
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- STRUCTURE OF THIS MANUAL
- The next chapter describes how to install !SimNet on your server
- or network client station. It also defines the hardware and software
- pre-requisites of the package. Chapter 3 leads the user through
- each of the major facilities available. It can be used as a tutorial
- guide to the network management operations provided.
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- This manual assumes that the reader is familiar with the Level 4
- File Server and the existing !Manager program.
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