Building a local Blynk server from scratch

[Dmytro]

We had similar issue in other thread -

[SOLVED] How to launch Blynk Server on Mint 17.3

Never mind. I’m an idiot. In the intervening time I had also rooted my phone and installed a firewall and blynk didn’t have internet access (because I wasn’t using it regularly). On the other hand, the Mint firewall is now enabled and I’ve got everything but the blynk and prosody ports locked down so that’s one good thing to come out of this afternoon.