Re: Good Linux to start with

From	blmblm@myrealbox.com <blmblm.myrealbox@gmail.com>
Newsgroups	comp.os.linux.misc
Subject	Re: Good Linux to start with
Date	2011-07-12 22:28 +0000
Organization	None
Message-ID	<98403rF6jtU1@mid.individual.net> (permalink)
References	<a19b0ebc-20c4-443e-8a39-b8ae8a8cbc02@u19g2000vbi.googlegroups.com> <slrnj1lp7e.ffn.hjp-usenet2@hrunkner.hjp.at> <981bt4FlgtU2@mid.individual.net> <slrnj1oj3e.co0.hjp-usenet2@hrunkner.hjp.at>

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In article <slrnj1oj3e.co0.hjp-usenet2@hrunkner.hjp.at>,
Peter J. Holzer <hjp-usenet2@hjp.at> wrote:
> On 2011-07-11 22:31, blmblm  myrealbox.com <blmblm.myrealbox@gmail.com> wrote:
> > In article <slrnj1lp7e.ffn.hjp-usenet2@hrunkner.hjp.at>,
> > Peter J. Holzer <hjp-usenet2@hjp.at> wrote:
> >> On 2011-07-10 03:49, Robert Riches <spamtrap42@jacob21819.net> wrote:
> >> > On 2011-07-09, Peter J. Holzer <hjp-usenet2@hjp.at> wrote:
> >> >> On 2011-07-09 00:05, Aragorn <stryder@telenet.be.invalid> wrote:
> >
> > [ snip ]
> >
> >> > Yellow Pages, later renamed to NIS, and some more recent
> >> > directory services, extend the Unix multiuser paradigm for
> >> > networked environments.
> >> 
> >> YP/NIS (which I first encountered in 1987 or 1988, I think) does little
> >> more than synchronize password files[1] (and other config files) between
> >> a master and several slaves. 
> >
> > [ snip ]
> >
> >> [1] It keeps them in a different place and uses a different format for
> >>     performance reasons, but that doesn't change the principle.
> >
> > Where is this other place?  My CPOE uses NIS on a network on Linux
> > systems (Red Hat and derivatives), and it sure *seems* like login
> > on an NIS client machine requires communication with the NIS server,
> > except for those few users listed in the local /etc/passwd file.
> 
> It's been about 10 years since I last used NIS, so my memory may be
> spotty, but AFAIR:
> 
> The files to be shared over NIS are kept in (subdirectories of)
> /var/nis (or similar) both on the master and the slaves.

Interesting -- these directories exist on both server and client at
that CPOE, but they don't seem to contain any files.

So either implementations have changed in the past 10 years (imagine
that :-) ), or there's a configuration parameter, or something?

> They are in dbm format, typically replicated for each key (so for the
> passwd file there is one copy indexed by name and one indexed by uid)
> for fast access.
> 
> Updates happen on the master, and are immediately replicated to all
> reachable slaves. In addition there is a cron job to synchronize slaves
> which have missed an update because they were unreachable.
> 
> Read-only operations on the slaves access only the local copy. So a
> login should work even if the master ist unreachable. I do remember that
> there were some cases where a slave tried to contact the master even
> though that wasn't really necessary but I don't remember the details.

It sounds sensible, but my experience is that logins don't work if
the server is unreachable, with the exception of those usernames
listed in the local password file.

Possibly different configuration, changes in implementation, .... ?
Hm.

-- 
B. L. Massingill
ObDisclaimer:  I don't speak for my employers; they return the favor.

Thread

Good Linux to start with Halberstam Reader <joe.snod@yahoo.com> - 2011-07-03 18:40 -0700
  Re: Good Linux to start with John Hasler <jhasler@newsguy.com> - 2011-07-03 20:53 -0500
  Re: Good Linux to start with bosco <boscopelone@yahoo.com> - 2011-07-03 21:16 -0600
    Re: Good Linux to start with bruce.sinclair@NOSPAMORELSEagresearch.NOTco.NOTnz (Bruce Sinclair) - 2011-07-04 04:07 +0000
  Re: Good Linux to start with Dan C <youmustbejoking@lan.invalid> - 2011-07-04 03:28 +0000
    Re: Good Linux to start with Michael Black <et472@ncf.ca> - 2011-07-04 12:04 -0400
      Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-04 23:07 +0200
  Re: Good Linux to start with David Brown <david@westcontrol.removethisbit.com> - 2011-07-04 10:15 +0200
  Re: Good Linux to start with Bob Henson <rh547477@gmail.com> - 2011-07-04 10:00 +0100
  Re: Good Linux to start with Torsten Mueller <dev-null@shared-files.de> - 2011-07-04 11:10 +0200
    Re: Good Linux to start with Balwinder S Dheeman <bsd.SANSPAM@anu.homelinux.net> - 2011-07-04 16:11 +0530
  Re: Good Linux to start with Richard Kimber <richardkimber@btinternet.com> - 2011-07-04 06:59 -0500
    Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-04 13:35 +0100
      Re: Good Linux to start with David Brown <david@westcontrol.removethisbit.com> - 2011-07-04 15:25 +0200
    Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-05 11:41 +0100
  Re: Good Linux to start with jmclnx@SPAMisBADgmail.com (Jack McCue) - 2011-07-04 12:50 +0000
  Re: Good Linux to start with Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2011-07-04 07:47 -0700
  Re: Good Linux to start with ray <ray@zianet.com> - 2011-07-04 14:50 +0000
  Re: Good Linux to start with Stefan Patric <not@this.address.com> - 2011-07-04 17:23 +0000
    Re: Good Linux to start with Steve Hayes <hayesstw@telkomsa.net> - 2011-07-05 07:39 +0200
      Re: Good Linux to start with JohnT <john@example.com> - 2011-07-05 07:52 +0000
        Re: Good Linux to start with Robert Riches <spamtrap42@jacob21819.net> - 2011-07-05 15:51 +0000
        Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-06 03:46 +0200
          Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-07 22:35 +0200
            Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-07 23:06 +0200
              Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-08 13:44 +0200
                Re: Good Linux to start with Hans Georg Schaathun <hg@schaathun.net> - 2011-07-13 08:58 +0100
                Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-13 09:41 +0100
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-13 10:07 +0100
                Re: Good Linux to start with Hans Georg Schaathun <hg@schaathun.net> - 2011-07-13 12:46 +0100
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-13 13:47 +0100
                Re: Good Linux to start with Hans Georg Schaathun <hg@schaathun.net> - 2011-07-13 14:20 +0100
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-13 15:26 +0100
                Re: Good Linux to start with John Hasler <jhasler@newsguy.com> - 2011-07-13 07:37 -0500
                Re: Good Linux to start with Hans Georg Schaathun <hg@schaathun.net> - 2011-07-13 14:16 +0100
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-13 14:35 +0100
                Re: Good Linux to start with Hans Georg Schaathun <hg@schaathun.net> - 2011-07-13 15:13 +0100
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-13 16:36 +0100
            Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-08 08:53 +0100
              Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-08 14:09 +0200
  Re: Good Linux to start with Anton Meyninger <anton.meyninger@gmail.com> - 2011-07-05 13:07 +0200
    Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-06 03:52 +0200
      Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-06 12:16 +0100
        Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-06 19:10 +0200
          Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-06 18:30 +0100
            Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-07 01:57 +0200
              Re: Good Linux to start with Robert Riches <spamtrap42@jacob21819.net> - 2011-07-07 03:26 +0000
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-07 05:48 +0100
                Re: Good Linux to start with Balwinder S Dheeman <bsd.SANSPAM@anu.homelinux.net> - 2011-07-07 11:15 +0530
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-07 07:14 +0100
              Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-07 05:45 +0100
              Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-07 09:53 +0100
                Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-07 10:41 +0100
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-07 11:32 +0100
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-07 13:49 +0100
                Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-07 15:01 +0100
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-07 15:16 +0100
                Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-07 23:04 +0200
                Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-08 08:58 +0100
                Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-08 14:19 +0200
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-08 13:44 +0100
                Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-11 09:39 +0100
                Re: Good Linux to start with blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-07-10 19:02 +0000
                Re: Good Linux to start with blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-07-10 19:01 +0000
            Re: Good Linux to start with Robert Riches <spamtrap42@jacob21819.net> - 2011-07-07 03:16 +0000
              Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-07 05:47 +0100
                Re: Good Linux to start with Robert Riches <spamtrap42@jacob21819.net> - 2011-07-07 05:00 +0000
          Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-07 22:42 +0200
            Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-07 23:41 +0200
              Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-08 14:07 +0200
                Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-09 02:05 +0200
                Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-09 21:10 +0200
                Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-10 02:16 +0200
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-10 10:42 +0100
                Re: Good Linux to start with Aragorn <stryder@telenet.be.invalid> - 2011-07-11 05:03 +0200
                Re: Good Linux to start with The Natural Philosopher <tnp@invalid.invalid> - 2011-07-11 08:23 +0100
                Re: Good Linux to start with Mark <i@dontgetlotsofspamanymore.invalid> - 2011-07-11 09:52 +0100
                Re: Good Linux to start with Richard Kettlewell <rjk@greenend.org.uk> - 2011-07-11 11:16 +0100
                Re: Good Linux to start with Robert Riches <spamtrap42@jacob21819.net> - 2011-07-10 03:49 +0000
                Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-11 13:56 +0200
                Re: Good Linux to start with blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-07-11 22:31 +0000
                Re: Good Linux to start with "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-07-12 15:30 +0200
                Re: Good Linux to start with blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-07-12 22:28 +0000
  Re: Good Linux to start with Feranija <feranija@net...> - 2011-07-06 11:37 -0700
  Re: Good Linux to start with TJ <TJ@noneofyour.business> - 2011-07-18 09:35 -0400

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