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Improve recursive DNS tunnel stability - #87

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Udjin79 wants to merge 19 commits into

Udjin79:fix/recursive-dns-stability

Commits on May 14, 2026

Stabilize DNS tunnel QUIC polling
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8fc3488
Fix QUIC path failover after DNS path loss
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c01f165
Fix authoritative DNS polling under active streams
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53c0e86
Recover recursive DNS sessions after path degradation
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9e50148
Refresh recursive DNS sessions after large transfers
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9cc12b5
Refresh recursive DNS sessions in-process
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c562792
Add DNS query cache busting
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4609d57
Avoid killing responsive recursive paths
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1a9b9f4
Rotate stalled handshakes before idle timeout
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5d9ba03
Keep recursive sessions alive after completed streams
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25f94ac
Keep recursive connections on alternate paths
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8060b8b
Honor cooldown when refreshing DNS paths
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69934dd
Require responsive alternate DNS paths
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47e367c
Revert "Require responsive alternate DNS paths"
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4834a3f
Replicate recursive DNS queries across paths
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7437e34
Revert "Replicate recursive DNS queries across paths"
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e541c73
Extend cooldown for failing DNS paths
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1463d24
Guard recursive failover for authoritative mode
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9cbe5d8
Scale pre-ready retries with resolver count
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9eee7c9