Provide Elevated Access to port 80

[cntrl-z-forlife]

I am running this node on a raspberry pi, and set the .env variable PORT=80. Running sudo npm start did not provide the privileges necessary. How do I grant the node.js access to port 80?

[jnbarlow]

Hmm. In Ubuntu, sudu npm start is all that is necessary to make it work on 80. What distro are you running on your PI? What's the error message it's giving you?

[cntrl-z-forlife]

Running Raspberry Pi OS(updated version of Raspbian).
Here are the errors:

glob error [Error: EACCES: permission denied, scandir '/root/.npm/_logs'] {
errno: -13,
code: 'EACCES',
syscall: 'scandir',
path: '/root/.npm/_logs'
}

up to date in 8s
events.js:291
throw er; // Unhandled 'error' event
^

Error: listen EACCES: permission denied 0.0.0.0:80
at Server.setupListenHandle [as _listen2] (net.js:1293:21)
at listenInCluster (net.js:1358:12)
at Server.listen (net.js:1444:7)
at Function.listen (/home/pirate/monero-dashboard/node_modules/express/lib/application.js:618:24)
at Object. (/home/pirate/monero-dashboard/server/index.js:24:5)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:60:12)
Emitted 'error' event on Server instance at:
at emitErrorNT (net.js:1337:8)
at processTicksAndRejections (internal/process/task_queues.js:84:21) {
code: 'EACCES',
errno: 'EACCES',
syscall: 'listen',
address: '0.0.0.0',
port: 80
}

[jnbarlow]

oh interesting. So it's throwing an error trying to write logs and gain access to the port. I wonder if the first is cascading into the 2nd.

Try creating that path as root (/root/.npm/_logs) and providing access chmod -r 755 /root/.npm then running it again.

[askiiart]

@cntrl-z-forlife Try adding this to /etc/sysctl.conf

net.ipv4.ip_unprivileged_port_start=0