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<a href="https://github.com/spesmilo/electrum/commit/<a class=hub.com/spesmilo/electrum/commit/731756f6e86a009dc3bd85dc72c5d5a8e897637a">731756f6e<a href="https://github.com/spesmilo/electrum/commit/731756f6e86a009dc3bd85dc72c5d5a8e897637a">&quot;&gt;dns hacks: use a default timeout of 30 sec for dns requests

dnspython changed the overall timeout for a request from 30 sec to 5 sec in version 2.0
(see https://github.com/rthalley/dnspython/commit/</a><a class="double-link" href="https://github.com/spesmilo/electrum/commit/<a class="double-link" href="https://github.com/spesmilo/electrum/commit/7ed1648b8427e77b1f21d1896ca8aaff11598e74">7ed1648b8</a>">7ed1648b8</a><a href="https://github.com/spesmilo/electrum/commit/731756f6e86a009dc3bd85dc72c5d5a8e897637a"> )

5 seconds is not enough in some network conditions...
We manually set the timeout back to 30 sec.

Note that in case these dns hacks are applied, and the timeout is reached,
we fallback to the system dns resolver, which hopefully can get a response.

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log was full of:

I | dns_hacks | dnspython failed to resolve dns (AAAA) for &#39;electrum.org&#39; with error: Timeout(&#39;The DNS operation timed out after 5.000827789306641 seconds&#39;)
I | dns_hacks | dnspython failed to resolve dns (A) for &#39;electrum.org&#39; with error: Timeout(&#39;The DNS operation timed out after 5.000998020172119 seconds&#39;)
I | dns_hacks | dnspython failed to resolve dns (AAAA) for &#39;electrum.hsmiths.com&#39; with error: Timeout(&#39;The DNS operation timed out after 5.000227451324463 seconds&#39;)
I | dns_hacks | dnspython failed to resolve dns (A) for &#39;electrum.hsmiths.com&#39; with error: Timeout('The DNS operation timed out after 5.000523328781128 seconds')
...

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