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- Submitted-by: martin@xopen.co.uk (Martin Kirk)
-
- Henry Spencer (henry@zoo.toronto.edu) writes
-
- > Why does it worry me that this list of related organizations does not
- > mention the IETF and the SNMP/MIB work -- the network-management
- > protocols and facilities that are in far wider use than any of the
- > above, with a far greater level of demonstrated interoperability.
-
- and Randall Atkinson (randall@Virginia.EDU) writes
-
- > Judging from comments below, they are still ignoring existing
- > practice in historical UNIX-derived systems in some cases.
- > If true, this is A Bad Thing.
-
- The intent was to convey the opposite impression. I think that
- wherever possible the work will reflect existing practise.
-
- > >Part of the motivation for this decision was recognition that the
- > >problem space is vast and that trying to attack it over too large a
- > >front was a suicidal manoeuvre. There was also an increased awareness
- > >of the related work of other organizations, such as the OSI Network
- > >Management Forum, the OSI Implementer's Workshop Network Management
- > >SIG, and X/Open. As this other work comes to fruition, it will be
- > >available for use by POSIX.7 and will likely solve some of the
- > >thornier problems, such as interoperability.
-
- > One would certainly hope that they are also tracking and taking
- > advantage of the good sized installed base that is already using SNMP
- > regularly. With the draft security extensions now published by the
- > IETF, SNMP has a good body of real-world experience. It would be best
- > if the POSIX.7 group tried to use that leverage to devise a good
- > standard. This isn't an OSI vs. TCP/IP thing; they should take
- > advantage of the experience of both groups.
-
- The list wasn't intended to be exhaustive or exclusive. The issue here
- is that P1003.7 is explicitly avoiding interoperability mechanisms at
- the moment. Nothing in the current P1003.7 work should preclude the
- use of OSI, TCP/IP, RPC, or a piece of wet string to achieve
- interoperability. Of course, some care needs to be taken to ensure that
- this actually is the case... At some point it will be necessary to
- prduce some specification of specific interoperability mechanisms,
- (presumably in the form of profiles), and at that time these should be
- taken from existing practice.
-
- > While network management is becoming better understood, it isn't
- > entirely a solved problem yet and I hope the POSIX.7 folks will be
- > careful in what they choose to standardise.
-
- The general model of using managed objects for management seems to
- work. I personally suspect that as it has really only been used in a
- network management environment there will probably be a need for
- extensions to bring it into the systems management arena.
-
- > > An obvious source of candidate management tasks can be found in the
- > > existing administrative command set on the systems around us, and it
- > > would be a perverse decision indeed to introduce gratuitous changes to
- > > the style of that interface.
-
- > Not only the style but also the content. Standardise what already
- > is historical practice and try to avoid inventing new features
- > without actual implementation and user experience.
-
- I agree. Both the form and the function should be preserved wherever
- possible.
-
- > >The Print Management work is based on the MIT Palladium printing
- > >system, which has the benefit of being well-aligned with the emerging
- > >ISO distributed printing standard, DIS 10164.
-
- > Palladium reportedly has an interface unlike those on historical
- > systems. I'd much rather see lp/lpr and lprm/lpstat be standardised
- > as user interfaces than something unfamiliar to virtually all of
- > the existing users.
-
- I understanding that a mapping of lp/lpr and lprm/lpstat into
- Palladium has been defined. This may be useful in providing for
- transition/compatibility/subsetting.
-
- > >Software Management has enjoyed a resurgence of interest within
- > >POSIX.7 over the last 6 months, with source material being drawn from
- > >DEC, HP, AT&T and Siemens-Nixdorf.
-
- > But is it based on historical systems ?
- > What kinds of tools are being standardised here ?
-
- Software installation and removal etc. The submisssions are based on
- existing vendors tools in this area.
-
- > >The third area, User Environment Management is a logical candidate for
- > >inclusion in the initial set of sub-projects.
-
- > What is being managed here besides user-addition ?
- > Could someone give examples maybe ?
-
- Addition/Deletion/Modification of users and groups. There is an
- interesting question here as to what the "user environment" should
- contain - skeleton startup files, certain environment variables, etc.
- The rationale for doing this first is that many other things that are
- managed have relationships to users, making this a common dependency
- for manyother areas. Also, for some reason, adding a user seems to be
- the universal example used in system management discussions.
-
- ======================================================================
- The opinions expressed above are not necessarily those of anything or
- any one except me.
- ======================================================================
-
- Martin Kirk m.kirk@xopen.co.uk Tel: +44 734 508311
-
- ======================================================================
-
-
- Volume-Number: Volume 24, Number 27
-
-