Files
quantus/asset/firewalld
Rob Thijssen aa506b963c
deploy / fetch (push) Successful in 17s
deploy / deploy-miner (1, quadbrat.hanzalova.internal, bob.hanzalova.internal) (push) Has been skipped
deploy / deploy-node (bob.hanzalova.internal, 0x134e73f06fa9bdb1dbfa909e149c563f5860ceb71a0e7307918f7033970edf59, benjy.hanzalova.internal quadbrat.hanzalova.internal, --public-addr /dns4/nh.thgttg.com/tcp/30333, --rpc-external --rpc-methods safe --rpc-cors all… (push) Failing after 31s
deploy / deploy-miner (1, benjy.hanzalova.internal, bob.hanzalova.internal) (push) Has been skipped
deploy / deploy-metrics (push) Has been skipped
feat: optionally expose the JSON-RPC to the site LAN
Substrate binds JSON-RPC to loopback and makes opening it deliberately
awkward, which is correct for a validator. rpc_expose in the node matrix
takes the complete flag string; empty keeps it on loopback.

--rpc-methods safe is the load-bearing flag. It permits every state read
and author_submitExtrinsic (signed, so no key exposure) while blocking
author_rotateKeys, system_addReservedPeer and the rest. --rpc-methods
auto happens to downgrade once listening externally, but relying on that
makes the safety depend on a flag nobody wrote down.

The firewalld rich rule is scoped to the node's own /16, derived from
its own resolved address at deploy time -- so no subnet literal enters
this repo and the rule follows the host between sites.

Loopback is whitelisted from rate limiting because the arena exporter
runs beside the node and makes ~4 calls every 2s, which is 120/min --
enough to throttle itself against a naive limit.

validate now asserts the bind matches intent in both directions: nothing
listening while rpc_expose is set is a failure, and loopback-only is
reported as configuration rather than silence.
2026-09-01 04:43:27 +03:00
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