How to public?Not sure or you try everything but not work,well i am here to help!
First:Go to NO-IP.COM register there and click add host,you should field like this:Free File Hosting & Video Downloads, Free File Sharing, Online Friends Network - Ziddu
In name field chose your name and desired host(that will be your realmlist)!
For example:burrninglegion.no-ip.org
Second:download litle program from they site called DUC!(if you are on modem and your ip is change every time you pul out your usb you can update easily your ip)!
Third:go to your realms conf file and change like here:
Free File Hosting & Video Downloads, Free File Sharing, Online Friends Network - Ziddu
If you had problems change to your external ip(if dont know what is your external ip then go to whatismyip.com),and yes if you use above metod and you are on modem everytime your ip change change it in your realm conf file!
Third:set your host file it is in C:\WINDOWS\system32\drivers\etc host open it in notepad!
see here how to set:
Free File Hosting & Video Downloads, Free File Sharing, Online Friends Network - Ziddu
So internal ip how to know which is it(only router)chose in start run and yupe command prompt in it tupe:ipconfig!(it is usually like 192.168.1.somm)
If you are on modem you are done!!!
Router:you need to set up in your host file last line and to port forwad!what is port forwad??Well let show you how and which ports to forwad!
Download guide here:Free File Hosting & Video Downloads, Free File Sharing, Online Friends Network - Ziddu
CHEERS!!