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Re: How to avoid systemd/udev unpredictable NIC names

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On Tue, Aug 31, 2021 at 12:27:57AM +0300, IL Ka wrote:
> >
> > This gives unpredictable results if the system has more than one
> > ethernet interface, or more than one wireless interface.
> >
> > It's fine on systems that have 0-1 ethernet and 0-1 wireless NICs.
> >
> 
> Isn't that what the topic starter asked about?:)

I sincerely hope that the OP will tell us how many ethernet interfaces
their "server" has, so we can stop the hypothetical tennis match.

> To make names predictable one can either leave everything as-is and let
> `systemd-udev` do its job, or create custom naming scheme using "link"
> files:
> 
> https://www.freedesktop.org/software/systemd/man/systemd.net-naming-scheme.html
> https://systemd.io/PREDICTABLE_INTERFACE_NAMES/
> https://www.freedesktop.org/software/systemd/man/systemd.link.html

I advocated creating the .link files in my original message.  I even
gave examples.

I do *not* advocate "letting systemd-udevd do its job", because it's
absolutely unqualified for duty.  The names it chooses are *not*
predictable.  The OP knew this.  I can tell by their wording.

I do *not* advocate using "net.ifnames=0" *unless* the system is known
to have fewer than 2 ethernet interfaces *and* fewer than 2 wireless
interfaces.

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Thread

How to avoid systemd/udev unpredictable NIC names Steve Keller <keller.steve@gmx.de> - 2021-08-30 22:40 +0200
  Re: How to avoid systemd/udev unpredictable NIC names Greg Wooledge <greg@wooledge.org> - 2021-08-30 23:00 +0200
    Re: How to avoid systemd/udev unpredictable NIC names Andrei POPESCU <andreimpopescu@gmail.com> - 2021-08-31 12:50 +0200
      Re: How to avoid systemd/udev unpredictable NIC names Greg Wooledge <greg@wooledge.org> - 2021-08-31 13:40 +0200
      Re: How to avoid systemd/udev unpredictable NIC names Reco <recoverym4n@enotuniq.net> - 2021-08-31 16:00 +0200
        Re: How to avoid systemd/udev unpredictable NIC names Andrei POPESCU <andreimpopescu@gmail.com> - 2021-09-01 19:30 +0200
  Re: How to avoid systemd/udev unpredictable NIC names Dan Ritter <dsr@randomstring.org> - 2021-08-30 23:10 +0200
    Re: How to avoid systemd/udev unpredictable NIC names Dan Ritter <dsr@randomstring.org> - 2021-08-30 23:30 +0200
    Re: How to avoid systemd/udev unpredictable NIC names Greg Wooledge <greg@wooledge.org> - 2021-08-30 23:30 +0200
      Re: How to avoid systemd/udev unpredictable NIC names IL Ka <kazakevichilya@gmail.com> - 2021-08-30 23:50 +0200
        Re: How to avoid systemd/udev unpredictable NIC names Greg Wooledge <greg@wooledge.org> - 2021-08-31 00:10 +0200
          Re: How to avoid systemd/udev unpredictable NIC names Steve Keller <keller.steve@gmx.de> - 2021-08-31 02:10 +0200
            Re: How to avoid systemd/udev unpredictable NIC names Greg Wooledge <greg@wooledge.org> - 2021-08-31 02:50 +0200
              Re: How to avoid systemd/udev unpredictable NIC names Tixy <tixy@yxit.co.uk> - 2021-08-31 22:10 +0200
        Re: How to avoid systemd/udev unpredictable NIC names Thomas Hochstein <thh@thh.name> - 2021-08-31 00:50 +0200
      Re: How to avoid systemd/udev unpredictable NIC names Steve Keller <keller.steve@gmx.de> - 2021-08-31 01:30 +0200
        Re: How to avoid systemd/udev unpredictable NIC names <tomas@tuxteam.de> - 2021-08-31 08:30 +0200
        Re: How to avoid systemd/udev unpredictable NIC names Andrei POPESCU <andreimpopescu@gmail.com> - 2021-08-31 12:50 +0200
        Re: How to avoid systemd/udev unpredictable NIC names David Wright <deblis@lionunicorn.co.uk> - 2021-08-31 16:30 +0200
  Re: How to avoid systemd/udev unpredictable NIC names IL Ka <kazakevichilya@gmail.com> - 2021-08-30 23:30 +0200
  Re: How to avoid systemd/udev unpredictable NIC names Roberto C. Sánchez <roberto@debian.org> - 2021-08-31 01:30 +0200
    Re: How to avoid systemd/udev unpredictable NIC names Steve Keller <keller.steve@gmx.de> - 2021-08-31 02:10 +0200
  Re: How to avoid systemd/udev unpredictable NIC names George Shuklin <george.shuklin@gmail.com> - 2021-08-31 15:50 +0200

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