Tinc blocking on DNS requests?

[Guus Sliepen]

On Wed, Mar 14, 2018 at 03:45:50PM +0100, codl wrote:

> I have a tinc network of hosts composed of two hosts on a network, let's call them A and B, and a number of remote hosts over the internet, that I'll collectively call C. A and B both ConnectTo each other and to C
> 
> The config files for C refer to them by DNS hostname, while A and B have plain IP addresses. This will be relevant
> 
> When A and B are cut off from the internet, I'd expect A and B to still be able to talk to each other, but in practice it works for a time and then stops working for a few minutes, comes back for a time, etc. Modifying the host config files for C on both A and B to point at IP addresses rather than DNS hosts seems to fix it.
> 
> I suspect that tinc is waiting for DNS requests to time out and not routing any packets in the meantime

That's indeed the problem.

-- 
Met vriendelijke groet / with kind regards,
     Guus Sliepen <guus at tinc-vpn.org>
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