not all free servers last 24 hours. try leet.cc; its an app you download on your phone and you get a free server. it comes with plugins and you can add more for certain amounts of credit. if you dont use a ton of your credits buying plugins (what i do) then your FREE server lasts 7 days.
2. Klick on the thing that says "Offline" to make the server "Online"
3. Add the server with the ip and port that's in the app
4. Give me the ip and I'll join, ask me if you need any help with the commands.
this server is up as long as you have credits, you start with 70 credits (max 7 days). But if you don't have credits the server will go offline till you buy more credits (0.99$ = 300 credits) (300 credits = max 30 days)