Re: ? ????? ??: vnc can't connect to socket

From: Rodney W. Grimes <freebsd-rwg_at_gndrsh.dnsmgr.net>
Date: Mon, 22 Jun 2020 12:28:05 -0700 (PDT)
> > On 21. Jun 2020, at 23:12, Rodney W. Grimes <freebsd-rwg_at_gndrsh.dnsmgr.net> wrote:
> > 
> >>> On Sun, 2020-06-21 at 14:54 +0200, Michael Tuexen wrote:
> >>>>> On 21. Jun 2020, at 14:28, Kostya Berger <bergerkos_at_yahoo.co.uk>
> >>>>> wrote:
> >>>>> 
> >>>>> Ok, it turns out, it gives the previously mentioned error only if I
> >>>>> use VNC server string 0.0.0.0:5900 (as I always did). in my VNC
> >>>>> client.But when replaced with127.0.0.1:5900it connects all right.
> >>>> 
> >>>> I don't hink 0.0.0.0 is a valid destination address you can use in
> >>>> connect(). Using 127.0.0.1 should
> >>>> be fine.
> >> 
> >> I do not believe that this is a destination address when your talking
> >> about 0.0.0.0:5900 on the VNC server side, that is a wild card accept
> >> any address and if this has been broken.. it must be fixed!
> >> 
> >>>> I guess, https://svnweb.freebsd.org/changeset/base/361752 is the
> >>>> relevant commit here.
> >>>> 
> >>> 
> >>> *BSD has always accepted 0 as a synonym for localhost (and iirc, linux
> >>> does not).  If this no longer works, it's a regression which is going
> >>> to cause existing applications and scripts to fail.  At the very least
> >>> it deserves an entry in UPDATING.
> >> 
> >> I am not aware of that, but can not deny it either, and just confirmed
> >> it to be true:
> >> root {1002}# telnet 0.0.0.0 22
> >> Trying 0.0.0.0...
> >> Connected to 0.0.0.0.
> >> Escape character is '^]'.
> >> SSH-2.0-OpenSSH_7.8 FreeBSD-20180909
> > 
> > And to add the netstat data to show what connected:
> > tcp4       0      0 127.0.0.1.22           127.0.0.1.43135        ESTABLISHED
> > tcp4      38      0 127.0.0.1.43135        127.0.0.1.22           ESTABLISHED
> > 
> > Can we back this commit out, discuss it in next weeks call,
> > and then find a way forward?
> > 
> >> 
> >> INADDR_ANY is the wildcard listen address, but as a destination what code remapped
> >> it to 127.0.0.1?
> >> 
> >> We should very seriously consider restoring this behavior.
> Reallowing 0.0.0.0 is covered by https://reviews.freebsd.org/D25401

Thank you Michael.

> Best regards
> Michael
> >> 
> >>> -- Ian
> >>> 
> >>>> Best regards
> >>>> Michael
> >>>>> ?????????? ?? Yahoo ????? ??? Android 
> >>>>> 
> >>>>> ??, 21 ???. 2020 ? 9:40 Kostya Berger<bergerkos_at_yahoo.co.uk>
> >>>>> ???????(-?):   Hi,upgraded to 362292 via buildworld.Now I cannot
> >>>>> connect to my bhyve guest as I used to: neither via VNC nor via
> >>>>> RDP.VNC gets error: unable to connect the socket. Address family
> >>>>> not supported by protocol family (47).
> >>>>> Neither can I ping my bhyve IP (it uses a separate NIC and should
> >>>>> have no problems)
> >>>>> Internet connectivity is ok and I can ping other hosts on my
> >>>>> network.
> >>>>> In 359997 all works fine.
> >>>>> ?????????? ?? Yahoo ????? ??? Android  
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> >> 
> >> -- 
> >> Rod Grimes                                                 rgrimes_at_freebsd.org
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> > 
> > -- 
> > Rod Grimes                                                 rgrimes_at_freebsd.org
> 
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-- 
Rod Grimes                                                 rgrimes_at_freebsd.org
Received on Mon Jun 22 2020 - 17:28:07 UTC

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