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Re: Under each of these scenarios, what is the neatest and simplest way to manipulate the /etc/network/interfaces file?

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On Mon 21 Mar 2022 at 06:05:48 (+0000), Tim Woodall wrote:
> On Sun, 20 Mar 2022, David Wright wrote:
> > On Sat 19 Mar 2022 at 03:14:54 (+0100), Stella Ashburne wrote:
> > > 
> > > There are instances in which my machine is connected to a mobile hotspot. And in some situations, it's connected to a smartphone via USB tethering. And when I'm in the office, I may connect it to a LAN cable.
> > > 
> > > Below are the contents of my /etc/network/interfaces file:
> > > 
> > > # This file describes the network interfaces available on your system
> > > # and how to activate them. For more information, see interfaces(5).
> > > 
> > > source /etc/network/interfaces.d/*
> > 
> > I would change this line to
> > 
> > source-directory /etc/network/interfaces.d
> > 
> > (which was the default on new buster installations).
> > 
> > I would then hive off all your interface configurations into
> > separate files in the directory /etc/network/interfaces.d
> > using all-ASCII filenames constructed from upper/lower-case
> > letters, digits, underscores, and minus-hyphens, as specified
> > on the man page, but with the string ".hidden" added to the end,
> > thus:
> > 
> > myphone-tethered.hidden
> > office-wired.hidden
> > wifi.hidden
> > hotspot.hidden
> > 
> > and so on. Files with a dot are ignored when included by means of
> > a source-directory directive.
> 
> I think just commenting out the allow-hotplug lines is sufficient. Then
> you can use ifup/ifdown at will. The only 'problem' will be that an
> interface doesn't start at boot.

And that would be a killer for a sizeable proportion of users.
I don't run any true headless systems myself, but I usually
start my non-laptops with wakeonlan, which would become futile
along with all the other power management wakening options.

> (I'd second splitting into separate files anyway)

Cheers,
David.

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Under each of these scenarios, what is the neatest and simplest way  to manipulate the /etc/network/interfaces file? Stella Ashburne <rewefie@gmx.com> - 2022-03-19 03:20 +0100
  Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Tim Woodall <debianuser@woodall.me.uk> - 2022-03-19 08:20 +0100
    Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Stella Ashburne <rewefie@gmx.com> - 2022-03-19 13:10 +0100
  Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Eduardo M KALINOWSKI <eduardo@kalinowski.com.br> - 2022-03-19 12:20 +0100
    Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Stella Ashburne <rewefie@gmx.com> - 2022-03-19 13:10 +0100
      Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Eduardo M KALINOWSKI <eduardo@kalinowski.com.br> - 2022-03-19 13:30 +0100
        Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? "hdv@gmail" <hdv.jadev@gmail.com> - 2022-03-19 13:30 +0100
  Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? David Wright <deblis@lionunicorn.co.uk> - 2022-03-20 15:40 +0100
    Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Tim Woodall <debianuser@woodall.me.uk> - 2022-03-21 07:10 +0100
      Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? David Wright <deblis@lionunicorn.co.uk> - 2022-03-22 03:00 +0100
    Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Stella Ashburne <rewefie@gmx.com> - 2022-03-23 13:40 +0100
      Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? David Wright <deblis@lionunicorn.co.uk> - 2022-03-23 16:30 +0100
    Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Stella Ashburne <rewefie@gmx.com> - 2022-03-24 03:20 +0100
      Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? David Wright <deblis@lionunicorn.co.uk> - 2022-03-25 03:20 +0100
        Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Stella Ashburne <rewefie@gmx.com> - 2022-03-25 07:40 +0100
          Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? David Wright <deblis@lionunicorn.co.uk> - 2022-03-26 05:50 +0100
            Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Curt <curty@free.fr> - 2022-03-26 10:20 +0100
            Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Greg Wooledge <greg@wooledge.org> - 2022-03-26 13:50 +0100
              Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? David <bouncingcats@gmail.com> - 2022-03-27 01:10 +0100
              Re: Under each of these scenarios, what is the neatest and simplest  way to manipulate the /etc/network/interfaces file? Andy Smith <andy@strugglers.net> - 2022-03-27 04:30 +0200

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