Re: [OT] Unix time

Subject	Re: [OT] Unix time
Newsgroups	comp.os.linux.misc
References	<tjg57f$s00$1@gioia.aioe.org> <87y1sju1n4.fsf@usenet.ankman.de> <slrntmr7g6.t9d.BitTwister@wb.home.test> <tklcml$r4ev$10@dont-email.me> <eli$2211111339@qaz.wtf>
From	"26C.Z968" <26C.Z968@noada.net>
Date	2022-11-11 17:50 -0500
Message-ID	<uT6dnT1Ub4g9TPP-nZ2dnZfqn_idnZ2d@earthlink.com> (permalink)

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On 11/11/22 1:39 PM, Eli the Bearded wrote:
> In comp.os.linux.misc, The Natural Philosopher  <tnp@invalid.invalid> wrote:
>> $ grep nobody /etc/passwd
>> nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
>>
>> IIRC this was the identity used with anonymous ftp logins, in the days
>> when trust still existed.
> 
> Nobody is what "root" maps to when using NFS without explicitly trusting
> root. If you don't have any NFS packages installed, you might not have
> the account.
> 
> First simple page I could find explaining:
>      https://wiki.ubuntu.com/nobody
> 
> That has citations to
>       https://www.kernel.org/doc/ols/2006/ols2006v2-pages-59-72.pdf
> 
> "Why NFS Sucks", see section 9 on security (page 60 as numbered, page 10
> as seen in PDF) in particular.
> 
> 
>      https://www.oreilly.com/openbook/linag2/book/ch14.html
> 
> Search for "root_squash"

   NFS = No File Security  :-)

   OK ... NFS4 has security ...

   Admittedly it DID have a major speed advantage over
   SMB for awhile, but that advantage has become smaller
   over the years. These days, for "large" files, SMB
   and NFS are about the same. NFS still has an advantage
   for "medium"/"small" files.

   https://blog.ja-ke.tech/2019/08/27/nas-performance-sshfs-nfs-smb.html

https://ferhatakgun.com/network-share-performance-differences-between-nfs-smb/

   Note that if you demand ENCRYPTED sharing (AES) then SMB
   falls substantially behind.

   For a "local network", like within a small/medium biz, where
   you own and can touch all the boxes, then NFS4 can indeed be
   a perfectly good - and fast - solution and there's likely no
   real need for encryption. If you're linked to / sharing
   something larger or something involving lots of money or
   work on projects others might want to STEAL then the security
   becomes extremely important.

   Most modern systems are a mix of -ix and Winders boxes and
   even Apple tablets/phones. SMB is very easy to set up to work
   with Winders, NFS4 not quite so easy. Strictly speaking the
   modern Apple system is based on Unix. The speed aspect MAY
   be paramount - like if you have loads of users all sharing
   GIS data files - which means NFS may offer a tangible advantage.

   So, there's no "perfect" choice. Scale, speed and security
   all play into it. If your users are mostly just grabbing
   Word documents from an NAS then speed isn't a thing and
   you may want to go SMB because it's just easier. Most NAS
   boxes still offer SMB and NFS (Sinology does ... you just
   check a box and you can have either or both).

   Personal experience ... I've got one Linux box that does
   selective backups of files on an NAS three times a day.
   That's its main thing and never has to talk to Winders
   or Apple. It's zillions of little files and a proportion
   of larger ones. Switching to NFS between the two, in this
   case, cut the time by about 20% Now was this a real
   advantage ? The box doesn't DO very much between the big
   backups, so the answer is "No". That 20% makes no diff.
   If the box were busier then maybe yes ...

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Unix time "Andrei Z." <no-email@invalid.invalid> - 2022-10-28 11:51 +0300
  Re: Unix time not@telling.you.invalid (Computer Nerd Kev) - 2022-10-29 10:54 +1000
  Re: Unix time Bobbie Sellers <bliss@mouse-potato.com> - 2022-10-29 07:51 -0700
    Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-05 22:02 -0400
      Re: Unix time Pancho <Pancho.Jones@proton.me> - 2022-11-06 12:14 +0000
        Re: Unix time "Andrei Z." <no-email@invalid.invalid> - 2022-11-06 16:00 +0300
          Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-06 22:41 -0500
            Re: [OT] Unix time Bit Twister <BitTwister@mouse-potato.com> - 2022-11-09 16:54 -0600
              Re: [OT] Unix time Computer Nerd Kev <not@telling.you.invalid> - 2022-11-10 10:29 +1000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-18 23:28 -0500
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-19 10:58 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-21 21:59 -0500
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-22 12:31 +0100
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-22 15:37 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-23 00:28 +0100
                Re: [OT] Unix time "26C.Z969" <26C.Z969@noaada.net> - 2022-11-23 00:28 -0500
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-23 12:47 +0100
                Re: [OT] Unix time "26C.Z969" <26C.Z969@noaada.net> - 2022-11-23 23:55 -0500
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-24 09:30 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-24 12:46 +0100
                Re: [OT] Unix time "26C.Z969" <26C.Z969@noaada.net> - 2022-11-26 23:28 -0500
                Re: [OT] Unix time Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2022-11-24 12:16 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-24 13:26 +0100
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-24 12:32 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-24 14:36 +0100
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-24 14:09 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-24 19:25 +0100
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-24 19:40 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-24 21:28 +0100
                Re: [OT] Unix time "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2022-11-24 13:06 -0500
                Re: [OT] Unix time "26C.Z969" <26C.Z969@noaada.net> - 2022-11-26 23:36 -0500
            Re: Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-10 11:01 +0100
              Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-18 23:33 -0500
              Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-18 23:37 -0500
                Re: Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-19 11:01 +0000
                Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-19 22:06 -0500
                Re: Unix time Allodoxaphobia <trepidation@example.net> - 2022-11-21 13:03 +0000
                Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-21 21:40 -0500
          Re: Unix time Pancho <Pancho.Jones@proton.me> - 2022-11-07 10:17 +0000
      Re: Unix time Bobbie Sellers <bliss@mouse-potato.com> - 2022-11-06 07:43 -0800
        Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-06 22:35 -0500
          Re: Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-07 06:12 +0000
            Re: Unix time Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2022-11-07 06:21 +0000
              Re: Unix time Harold Stevens <wookie@limbo.localdomain> - 2022-11-07 02:44 -0600
              Re: Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-07 15:42 +0000
                Re: Unix time Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2022-11-07 16:44 +0000
                Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-09 00:46 -0500
                Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-09 00:32 -0500
                Re: Unix time Bobbie Sellers <bliss@mouse-potato.com> - 2022-11-09 08:13 -0800
                Re: Unix time not@telling.you.invalid (Computer Nerd Kev) - 2022-11-10 07:10 +1000
                Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-16 00:18 -0500
                Re: Unix time Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2022-11-16 18:13 +0000
                Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-17 00:41 -0500
                Re: Unix time Jerry Peters <jerry@example.invalid> - 2022-11-22 18:21 +0000
                Re: Unix time "26C.Z969" <26C.Z969@noaada.net> - 2022-11-23 00:31 -0500
                Re: Unix time not@telling.you.invalid (Computer Nerd Kev) - 2022-11-17 07:27 +1000
              Re: Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-09 00:10 -0500
                Re: Unix time Andreas Kohlbach <ank@spamfence.net> - 2022-11-09 18:52 -0500
                Re: [OT] Unix time Bit Twister <BitTwister@mouse-potato.com> - 2022-11-10 18:57 -0600
                Re: [OT] Unix time G <g@nowhere.invalid> - 2022-11-11 10:42 +0000
                Re: [OT] Unix time Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2022-11-12 19:42 +0000
                Re: [OT] Unix time "Carlos E.R." <robin_listas@es.invalid> - 2022-11-11 12:20 +0100
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-11 11:46 +0000
                Re: [OT] Unix time Eli the Bearded <*@eli.users.panix.com> - 2022-11-11 18:39 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-11 17:50 -0500
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-12 11:15 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-14 23:34 -0500
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-15 11:10 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-16 00:11 -0500
                Re: [OT] Unix time Richard Kettlewell <invalid@invalid.invalid> - 2022-11-16 08:54 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-18 23:58 -0500
                Re: [OT] Unix time The Natural Philosopher <tnp@invalid.invalid> - 2022-11-19 11:04 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-19 22:16 -0500
                Re: [OT] Unix time Richard Kettlewell <invalid@invalid.invalid> - 2022-11-19 13:16 +0000
                Re: [OT] Unix time "26C.Z968" <26C.Z968@noada.net> - 2022-11-19 22:51 -0500

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