Wednesday, January 25, 2023

Forwarded ports on FluxOS upgrade


Flux is a decentralized platform for creating and deploying decentralized applications (dApps) on the blockchain. One of the key components of the Flux ecosystem is the Flux node, which is responsible for maintaining the integrity of the network by validating transactions and adding them to the blockchain.

I have been running a Flux node for about a year now, and have been happy contributing to the network.  I also am thinking about writing an service and hosting it on Flux.  (I will write more about that soon.)

I just recently upgrade my Flux node to FluxOS v3.32.0. Unfortunately, after the update, I noticed the node wasn't starting up successfully.  I was seeing the error from the benchmark tool:

Flux is not available for outside communication

After re-reading the setup documentation, I noticed that they added a port (16129) to the port forwarding config.  It looks like this is a recent change, where the version of the documentation from Oct 2022, didn't have this configured.  Once I made this config change, I was able to start our Flux node successfully.

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