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From: Banibrata Dutta <banibrata.dutta@gmail.com>
Date: Thu, 4 Mar 2021 10:11:27 +0530
Message-ID: <CALODqpqum5pRkfFQACSYF5xci-DLD2m6NRSTVyi+4GCZh_O6ew@mail.gmail.com>
Subject: Re: name resolution problem
To: Sebastian Lusenti <sebastian.lusenti@protonmail.com>
Cc: ~alpine/users@lists.alpinelinux.org
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This sounds potentially related to the problem I posted last night. My
setup is Win10 Enterprise, with Virtualbox running VM, on which Alpine 3.13
is installed as guest OS, with Docker and Docker-compoae (latest from
repos). I also use (corporate) VPN on the host. However my issue is that
inter container (since I use 7 containers) name resolution, and hostname
assignment with container is erratic. It switched from working almost
smoothly to near mess, with zero change to containers or their
configuration. From within atleast one of the containers, I am however able
to do 'curl -v -k http://www.google.com'.

Similar to you, I have a similar setup based on CentOS guest, with somewhat
older version of Docker and Docker-compose which works fine, in the same
host setup. Wanted the Alpine guest setup to minimise footprint for easier
distribution to colleagues.

Regards,
BD

On Mon, 1 Mar, 2021, 3:00 pm Sebastian Lusenti, <
sebastian.lusenti@protonmail.com> wrote:

> hi all,
> I'm trying to make an Alpine Linux setup for Desktop but currently I'm
> struggling with stopper problem.
> I've installed Alpine in a VirtualBox VM. When i setup a vpn connection on
> the host I'm not able to use any network service that requires name service
> resolution (E.G. chrony , ssh, firefox, apk) on the alpine guest but if I
> nslookup to any host the dns respond correctly. Without VPN everything it's
> ok.
> I've already tried to create a /etc/nsswitch file and to restart
> networking service multiple times.
>
> It's not a VPN or VirtualBox issue because if I try the same commands in
> the same environment with another distro everything work fine.
>
> Could you please help, debugging and solving this?
>
>
> Sent with ProtonMail <https://protonmail.com> Secure Email.
>
>

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<div dir=3D"auto">This sounds potentially related to the problem I posted l=
ast night. My setup is Win10 Enterprise, with Virtualbox running VM, on whi=
ch Alpine 3.13 is installed as guest OS, with Docker and Docker-compoae (la=
test from repos). I also use (corporate) VPN on the host. However my issue =
is that inter container (since I use 7 containers) name resolution, and hos=
tname assignment with container is erratic. It switched from working almost=
 smoothly to near mess, with zero change to containers or their configurati=
on. From within atleast one of the containers, I am however able to do &#39=
;curl -v -k <a href=3D"http://www.google.com">http://www.google.com</a>&#39=
;.<div dir=3D"auto"><br></div><div dir=3D"auto">Similar to you, I have a si=
milar setup based on CentOS guest, with somewhat older version of Docker an=
d Docker-compose which works fine, in the same host setup. Wanted the Alpin=
e guest setup to minimise footprint for easier distribution to colleagues.<=
/div><div dir=3D"auto"><br></div><div dir=3D"auto">Regards,</div><div dir=
=3D"auto">BD</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" cla=
ss=3D"gmail_attr">On Mon, 1 Mar, 2021, 3:00 pm Sebastian Lusenti, &lt;<a hr=
ef=3D"mailto:sebastian.lusenti@protonmail.com">sebastian.lusenti@protonmail=
.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style=3D"m=
ax-width:800px"><div style=3D"color:rgb(26,26,27)"><p></p><div>hi all,<br><=
/div><div>I&#39;m trying to make an Alpine Linux setup for Desktop but curr=
ently I&#39;m struggling with stopper problem.<br></div><div>I&#39;ve
 installed Alpine in a VirtualBox VM. When i setup a vpn connection
 on the host I&#39;m not able to use any network service that requires name
service resolution (E.G. chrony , ssh, firefox, apk) on the alpine
guest but if I nslookup to any host the dns
respond correctly. Without VPN everything it&#39;s ok.<br></div><div>I&#39;=
ve already tried to create a /etc/nsswitch file and to restart networking s=
ervice multiple times.<br></div><div><br></div><div>It&#39;s not a VPN or V=
irtualBox issue because if I try the same commands in the same environment =
with another distro everything work fine.<br></div><div><br></div><div>Coul=
d you please help, debugging and solving this?<br></div><p></p></div></div>=
<div><div><br></div><div>Sent with <a href=3D"https://protonmail.com" targe=
t=3D"_blank" rel=3D"noreferrer">ProtonMail</a> Secure Email.<br></div></div=
><div><br></div></blockquote></div>

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