Re: Assorted arm-buster problems - network configuration
On Fri 05 Jul 2019 at 09:56:39 +0300, Reco wrote:
> On Thu, Jul 04, 2019 at 09:42:11PM +0100, Brian wrote:
> > On Thu 04 Jul 2019 at 22:05:09 +0200, tomas@tuxteam.de wrote:
> >
> > > On Thu, Jul 04, 2019 at 08:56:45PM +0100, Tixy wrote:
> > > > On Thu, 2019-07-04 at 20:01 +0100, Brian wrote:
> > > > > On Thu 04 Jul 2019 at 19:18:13 +0300, Reco wrote:
> > > > >
> > > > > [...]
> > > > >
> > > > > > I'd also consider exterminating avahi with extreme prejudice, i.e.
> > > > > > 'apt
> > > > > > purge avahi-daemon'. Really simplifies things. Not installing this
> > > > > > software in the first place works even better.
> > > > >
> > > > > Gene Heskett can follow this advice if he wishes. It is to be hoped
> > > > > that every other user ignores it.
>
> Oh, it seems that I've touched a nerve. My apologies just in case.
No need to apologise. I was intrigued with the suggestion and simply
wondered what the technical reason was and how not installing avahi
would benefit a user.
> > > > Why? It's advice I decided for myself 10 or more years ago after seeing
> > > > constant reports of zeroconf bugs in various OSes and kit, and
> > > > realising that sort of thing was also running on my Linux machines. The
> > > > whole idea of automagically setting up networks just sounds like a
> > > > problem and security hole waiting to happen. So I decided to nuke it
> > > > from orbit, it was the only safe thing to do.
> > >
> > > As always, all generalizations suck. Some do avahi, others don't (full
> > > disclosure: I am in the "don't" camp, as many may have guessed :-)
> >
> > If nobody objects I would like to reword that statement. Many, many
> > users will have avahi-daemon on their systems; a few won't.
>
> [1] says that half of the Debian users participating in popcon have
> avahi-daemon installed. Your assertion that "don't camp" is a minority
> is off. That's a first.
Popularity contest statistics are a rough and ready basis for deciding
on a course of action, but sufficient to counter a rough and ready
argument.
http://joeyh.name/blog/entry/the_popcon_problem/
> Second, contrary to the popular thinking here, the world does not start
> and does not end with GNOME and x86 along with the CUPS installed.
> And while avahi enhances CUPS' usability indeed, it has little
> usefulness otherwise.
The enhancements it brings to the printing system are sufficient to more
than justify its place on a user's machine.
> Third, whatever good avahi does is limited to a single L2 network
> segment by the very definition of how it works. This particular problem
> shows it BTW.
>
>
> > The idea
> > that
> >
> > > Not installing this software in the first place works even better.
> >
> > requires clarification.
>
> Easy. You don't understand what the software does (Gene's here), or you
> don't need its functions (I'm here) - you just do not install it. You
> don't fight with it, you don't try to "disable" it in myriad ways, and
> you do not build assorted kludges alongside of it - you do not install
> it, simple as that.
>
>
> [1] https://qa.debian.org/popcon.php?package=avahi
Not installing avahi-daemon or purging it when it is not required is
reasonable; I do both on some machines here.
--
Brian.
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