Re: Forcing dhclient to not ignore tun0 interface when it's available

From	davenull@tuxfamily.org
Newsgroups	linux.debian.user
Subject	Re: Forcing dhclient to not ignore tun0 interface when it's available
Date	2023-03-07 18:00 +0100
Message-ID	<G6IPn-aOKc-1@gated-at.bofh.it> (permalink)
References	(5 earlier) <G4OFA-9wY9-15@gated-at.bofh.it> <G53XX-9GK9-5@gated-at.bofh.it> <G569r-9IoC-3@gated-at.bofh.it> <G6hYR-axrX-5@gated-at.bofh.it> <G6Hqh-aNZV-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 2023-03-07 16:20, Max Nikulin wrote:
> On 06/03/2023 19:17, davenull wrote:
>> On 2023-03-03 06:22, Max Nikulin wrote:
>>> 
>>> Perhaps the opposite. dhclient running for enp2s0f0 should detect 
>>> that
>>> VPN is active and to avoid overwriting DNS settings that direct
>>> requests to tun0.
>> 
>> Yes, indeed. I want dhclient to NOT overwrite /etc/resolv.conf when 
>> VPN is active. OR to use tun05 when it tries to renew the lease
> ...
>> If anyone has a good documention on how to configure openresolv 
>> correctly to use it with openconnect.
> 
> People suggested openvpn scripts and dhclient hooks in this thread. It
> should be enough to write a couple of scripts that conditionally
> update resolv.conf. I am not sure that it is possible to provide
> configuration that would work out of the box. If you are seeking a
> ready to use recipe, perhaps you should ask openvpn community.
> 
> I used network-manager-openconnect-gnome for some time and it was
> enough to fill some fields in a GUI form for minimal working
> configuration.

If it was for personal need, I wouldn't mind spending time with trial 
and error… but it's not.

That hook stuff might be enough for someone who either use a similar 
environnent/tools as the script's
OR known well enough both openconnect/connmann/openresolv, as well as 
openVPN… So they can easily adapt such hooks to different tolls

I use neither OpenVPN¹ for work nor network-manager. So hooks need to be 
adapted BUT my knowledge of openconnect is limited, let alone openresolv 
(0 knowledge)
So having some documentation "beginner-friendly" would actually make a 
big difference to help me achieving that in a reasonable amount of time

Not having a documentation means tinkering, and trial and error and 
spending (too much) time on it.
Sure it might work, but I requires more time and energy I can't afford.

During remote-work, extra hours are simply ignored. So I either thinker 
to make things work with near 0 knowledge of these tools, or do my 
actual.

And I'm not planning spending my free time debugging work's related 
stuff (anymore, did that mistake too often).
Workplace idiotic policy about both extra-hours during remote work AND 
on-site extra-hours if one leaves work the office
after 6:30 pm (clocking terminal configured to ignore working time after 
that) sc***ed me more than once during incidents.

So I'm clearly being lazy this time. I'd rather find a solution which is 
relatively "easy and fast" to implement, than work for free

1. Because, according to workspace staff who "choose" (a.k.a listened to 
marketing people) cisco crap… cisco blackbox with it's binary spyware 
(CSD idiocy) is "more secure"…

Thread

Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-22 18:20 +0100
  Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Roberto C. Sánchez <roberto@debian.org> - 2023-02-22 18:30 +0100
  Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-22 18:40 +0100
    Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-23 11:40 +0100
      Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Reco <recoverym4n@enotuniq.net> - 2023-02-23 18:20 +0100
  Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Greg Wooledge <greg@wooledge.org> - 2023-02-22 19:30 +0100
  Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-02-22 22:10 +0100
    Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-23 10:50 +0100
      Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable <tomas@tuxteam.de> - 2023-02-23 11:00 +0100
        Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-23 11:40 +0100
      Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-02-24 06:40 +0100
        Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable <tomas@tuxteam.de> - 2023-02-24 06:50 +0100
        Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-24 10:30 +0100
          Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable <tomas@tuxteam.de> - 2023-02-24 10:30 +0100
            Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-24 11:30 +0100
              Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable tomas@tuxteam.de - 2023-02-24 11:50 +0100
              Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-27 15:20 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Greg Wooledge <greg@wooledge.org> - 2023-02-27 15:40 +0100
          Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Greg Wooledge <greg@wooledge.org> - 2023-02-24 13:30 +0100
          Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-02-25 01:30 +0100
          Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-02 11:50 +0100
            Re: Forcing dhclient to not ignore tun0 interface when it's  available Tim Woodall <debianuser@woodall.me.uk> - 2023-03-03 04:10 +0100
              Re: Forcing dhclient to not ignore tun0 interface when it's available Max Nikulin <manikulin@gmail.com> - 2023-03-03 06:30 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's  available Tim Woodall <debianuser@woodall.me.uk> - 2023-03-03 07:40 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available Max Nikulin <manikulin@gmail.com> - 2023-03-03 16:10 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-03 16:20 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-06 13:40 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-07 05:10 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-07 17:20 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-10 02:00 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-06 13:20 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-07 05:10 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-07 17:00 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available Max Nikulin <manikulin@gmail.com> - 2023-03-07 16:30 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-07 18:00 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-10 02:00 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-10 09:50 +0100
            Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-03 06:30 +0100
              Re: Forcing dhclient to not ignore tun0 interface when it's available davenull@tuxfamily.org - 2023-03-03 18:10 +0100
                Re: Forcing dhclient to not ignore tun0 interface when it's available David Wright <deblis@lionunicorn.co.uk> - 2023-03-04 18:40 +0100
  Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable Cindy Sue Causey <butterflybytes@gmail.com> - 2023-02-23 02:30 +0100
    Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong configuration, on debian stable conover@panix.com (John Conover) - 2023-02-23 03:20 +0100
      Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-23 11:30 +0100
        Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable Jeremy Ardley <jeremy@ardley.org> - 2023-02-23 11:40 +0100
        Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-02-28 05:30 +0100
          Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-02-28 16:10 +0100
            Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Tixy <tixy@yxit.co.uk> - 2023-02-28 17:00 +0100
            Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-03-02 00:30 +0100
              Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-03-02 10:40 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Greg Wooledge <greg@wooledge.org> - 2023-03-02 13:40 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-03-02 13:50 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-03-02 14:10 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Greg Wooledge <greg@wooledge.org> - 2023-03-02 14:20 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable davenull@tuxfamily.org - 2023-03-02 16:20 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable David <bouncingcats@gmail.com> - 2023-03-02 16:40 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with wrong  configuration, on debian stable David <bouncingcats@gmail.com> - 2023-03-02 16:20 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable Curt <curty@free.fr> - 2023-03-02 18:30 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-03-02 19:20 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable <tomas@tuxteam.de> - 2023-03-02 20:30 +0100
                Re: Debugging what is deleting/recreating /etc/resolv.conf with  wrong configuration, on debian stable David Wright <deblis@lionunicorn.co.uk> - 2023-03-03 06:20 +0100

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