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ncdns misdetects Electrum-NMC's NXDOMAIN as SERVFAIL #153

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JeremyRand opened this issue Jul 24, 2019 · 0 comments
Open

ncdns misdetects Electrum-NMC's NXDOMAIN as SERVFAIL #153

JeremyRand opened this issue Jul 24, 2019 · 0 comments

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@JeremyRand JeremyRand commented Jul 24, 2019

When looking up a nonexistent domain with ncdns (connected to Namecoin Core), ncdns correctly returns NXDOMAIN. However, ncdns fails to detect this case when it's connected to Electrum-NMC, and instead returns SERVFAIL.

Among other things, this causes UX problems for StemNS/ncprop279, which is designed to repeatedly retry resolution operations that resulted in SERVFAIL, while immediately giving up when NXDOMAIN is encountered.

The upstream Electrum bug for this is spesmilo#5524 .

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