How do you make a private ragnarok server

I wouldn't trust off-site guides as there isn't a guarantee that they are virus free and are updated.

The original private server source code producers are located here:

http://www.eathena.ws/board/index.php?act=idx

There are also plenty of guides for you to look at. What kind of eAthena you want also depends on your operating system. For windows XP Pro (Service Pack 2), I recommend you go to this site:

http://littlemimiboutique.com/svn-temp/

The owner is a well-known member of eAthena, BowieBowie.

http://www.eathena.ws/board/index.php?showuser=752

The user compiles the most recent eAthena releases (when they can), and also provides already hexed sakray and xray exe's which you'll need later on in your server setup. They also include a mySQL 5.0 guide, which is the most up-to-date currently. Remember, as you'll find mostly everywhere on the forum, the search function is your friend, but I always find looking through the forums better.

Once your private server is up you can get a lot of players by posting your servers website here:
http://fansitelist.com/fansites/ragnarok-online/38/0/
http://fansitelist.com/fansites/ragnarok-online2/39/0/