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"falling back to iterative mode" #150

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"falling back to iterative mode"#150

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@singpolyma
singpolyma
opened on Jan 6, 2026

In some cases (right now seeing this when using TOR in vpn mode) I see logs like this:

01-06 10:06:13.542  9521  9632 D org.minidns.AbstractDnsClient: Jan 06, 2026 10:06:13 AM org.minidns.iterative.ReliableDnsClient query
01-06 10:06:13.542  9521  9632 D org.minidns.AbstractDnsClient: FINE: Resolution fall back to iterative mode because: DNSSEC OK (DO) flag not set in response. Response:
01-06 10:06:13.542  9521  9632 D org.minidns.AbstractDnsClient: DnsMessage(30977 QUERY NO_ERROR resp[qr=1] rd ra cd)
01-06 10:06:13.542  9521  9632 D org.minidns.AbstractDnsClient: [Q: mboa.dev.	IN	DS]
01-06 10:06:13.542  9521  9632 D org.minidns.AbstractDnsClient: [X: ..	0	null	UNKNOWN	org.minidns.record.UNKNOWN@1]

I don't actually see where in the code this log comes from? But it seems like the upshot is that the resolution takes minutes and I've actually never seen it finish.

Activity

  1. singpolyma commented on Jan 6, 2026

    @singpolyma
    singpolyma
    on Jan 6, 2026
    Author

    aha, this fixes it:

    final AbstractDnsClient dnssecclient = DnssecResolverApi.INSTANCE.getClient();
((ReliableDnsClient) dnssecclient).setMode(ReliableDnsClient.Mode.recursiveOnly);
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