I installed MCPE Server on my Ubuntu VPS. But I couldn't join in although I typed correctly the IP and port, Help!
You shouldn't need to do any port forwarding on a VPS, but you will have to open the correct ports if there's a firewall enabled... and there should be: https://www.digitalocean.com/community/tutorials/ufw-essentials-common-firewall-rules-and-commands
I'm just guessing based off problems I had when I first started setting my server up, is your server outdated? anotherwards is your mcpe version 1.0.0 or 1.0.2 and your server software could possibly be for mcpe versions 0.16 or older