Scratch

You have to forward the port on your router.
There's a plethora of tutorials online, just look it up.

Okay, I got it up but I don't want to give my real IP away by sharing it, so is there a way I can change it? Thanks veggie.

I'm not sure, if people wanted to they could trace it to your city 
Maybe use a dns...
http://dyn.com/

Lol, i'll see if I can find a dns tutorial 

Unfortunately...
not that I know of 
Ask jji7skyline, he'll know :3

http://www.no-ip.com/ is better :3 Also, use Bukkit 

Ok. Get ready to type "tl;dr".

1. Download CraftBukkit.

2. Follow the instructions on how to make a RUN.bat file.

3. Double click the file (it will be a command file if you're on a Mac).

4. No errors? Good. Errors? Go back to the download page and check everything.

5. Go to portforward.com and follow the instructions on forwarding ports for a Minecraft Server.

6. Want a domain name? Get a dynamically updating one from no-ip.com. dyn.com seems to force you to use a credit card. It was free when I used it.

7. Check if you can connect using your ip (go to whatismyip.com) and then check if you can connect using your domain name.

8. Setup your server.properties file according to you liking.

9. Install whatever plugins you want.

10. Share your server address.

11. Do you get people connecting successfully?

12. You've done it! 

dadkid101 wrote:

veggieman001 wrote:

You have to forward the port on your router.
There's a plethora of tutorials online, just look it up.

You do? I got mine to work and i didn't port forward it. (I tried) No one else can get into my server...

The port forwarding is to allow users outside of your local network to connect to the server. I set one up recently which I made out of an old desktop computer 

As long as you have a proper firewall set up, there should be no problem in sharing your IP for server connections like this, since almost every site you ever visit reads your IP to enforce bans, personalise information etc.

sparks wrote:

As long as you have a proper firewall set up, there should be no problem in sharing your IP for server connections like this, since almost every site you ever visit reads your IP to enforce bans, personalise information etc.

Yep. Even Scratch tracks your IP.

read my post above 

JJROCKER wrote:

I can't figure it out 

Couldn't you find your router model on portforward.com?

megamagician wrote:

JJROCKER wrote:

I can't figure it out 

in your web browser type in 10 . 0 . 0 . 1 without the spaces press enter type in your router details (usually username=admin password=password) click ok then goto port fowarding tab and port forward as follows:

service name= MCServer

protocol= TCP/UDP

starting port= 25565

ending port= 25565

sever ip address= your internal ip address (find by going to cmd then type ipconfig you will have to find this by yourself sorry    and type it in the sever ip address)

click apply

yours may be different to mine but try doing above with whatever you got

It depends on what model router you have.