fix(paper,paper-gamemode): authenticate against Mojang directly#107
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fix(paper,paper-gamemode): authenticate against Mojang directly#107
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Both images shipped with online-mode=false + Velocity-modern-
forwarding enabled — a config that only makes sense behind a
Velocity proxy that does the auth and signs the player profile.
There's no Velocity in the architecture: mc-router handles fan-out
via raw TCP/SNI relay, no protocol-level auth. So Paper saw the
client directly, computed an offline-mode UUID via
nameUUIDFromBytes("OfflinePlayer:<name>"), and that didn't match
the Mojang-resolved UUID we whitelisted. Players got "You are not
whitelisted on this server!" even though they were in the list.
Flip both images to authenticate directly:
- server.properties online-mode=true
- paper-global.yml proxies.velocity.enabled=false
If we later add Velocity for hub/queue/cross-server features,
revisit — modern forwarding wants this exact reverse pair.
This was referenced May 6, 2026
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Servers shipped with online-mode=false + Velocity-modern-forwarding-enabled, but there's no Velocity proxy in the architecture (mc-router is just SNI relay). Result: offline-mode UUIDs that don't match the Mojang-resolved whitelist. Flip both to direct Mojang auth.