What is the best way for integrating+authenticating two nodeBB forum?
Using a common OAuth2 provider would be your best bet
I try used NodeBB and install on Lubuntu Localhost. And restart computer, then Nodebb is offline, and show "This site can’t be reached" notification on Browser.
What service I have to restart? And Thank!
No problem - glad I was able to help you locate the problem.
As long as your SSL certificate is still in place and the iRedMail functionality is all working, I don't think there should be an impact on the security of your system.
I blame the Avatar. 😆