Little Snitch Blocking SCLang/SCSynth UDP?

Hey All,

So, I’m trying to send some UDP messages to SuperCollider from a Java app I’m developing, but Little Snitch appears to be stopping SC from receiving them. I’ve added rules in Little Snitch to allow connections to the SC app but this doesn’t seem to help, I’m still not receiving the messages. I was thinking I should make Little Snitch rules for the SCLang / SCSynth processes, does anybody know how to do this?

Edit: I’ve made a rule for SCSynth too, and this still hasn’t resolved the issue.


The “sclang” process by default receives on port 57120.

The “scsynth” process, on 57110.

The SC-IDE app isn’t relevant here.

Maybe that helps set up the rules?