Re: [bitfolk] Docker swarm / VPS networking issues

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Author: Andy Smith
Date:  
To: users
Subject: Re: [bitfolk] Docker swarm / VPS networking issues

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gpg: Signature made Wed Nov 18 05:35:19 2020 UTC
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gpg: aka "Andy Smith (Linux User Groups UK) <andy@lug.org.uk>" [unknown]
gpg: aka "Andy Smith (Cernio Technology Cooperative) <andy.smith@cernio.com>" [unknown]
Hello,

On Tue, Nov 17, 2020 at 07:26:14PM +0000, Chris Smith wrote:
> Traffic is going back and forth correctly on ports 2377 and 7946
> but tcpdump shows that neither host is initiating traffic on port
> 4789 (UDP).


I am not seeing a problem sending data on udp/4789 between VMs on
different hosts:

Window 1:

    $ sudo iptables -P INPUT ACCEPT
    $ sudo iptables -F
    $ sudo iptables -X
    $ nc -v -l -u -p 4789
    listening on [any] 4789 ...


Window 2:

    $ nc -u 85.119.80.223 4789
    hello world
    ^C


Window 1:

    connect to [85.119.80.223] from authns0.bitfolk.com [85.119.80.198] 54925
    hello world


That sent data between a VM on leffe and a VM on limoncello, which
are actually in two different rooms in Telehouse.

I might see if I can follow the docker example you linked to, though
I have no experience whatsoever of docker…

Cheers,
Andy

--
https://bitfolk.com/ -- No-nonsense VPS hosting