How to make a minecraft server

Most questions will be answered in the description :)
Links:
http://www.minecraft.net/ (minecraft)
Multiplayer server:
http://www.minecraft.net/download




Questions and answers:
Q: "How do I make myself Admin?"
A: Go to the "ops" file, open it with notepad, and write your name in it.
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Q: "Do I need NBT Forge?"
A: No
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Q: "Can I make a server with a cracked version of Minecraft?"
A: Yes, in the properties file, make it so online mode is false
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Q: "I can join my server, but my friends can't, why?"
A: This is most likely because of your firewall. Either disable the firewall, or allow Minecraft and the Minecraft_Server_Jar to bypass the firewall.
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Q: "I can't destroy items in my server?!?!"
A: That is because you are near spawn, just walk a few yards and you can build.
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Q: "It keeps on saying "loading spawn area 2%" and it's loading really slow!?!"
A: This means your computer is a pile of shit, and most likely doesn't have the power to run the server.
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Q: "When I run the server, or try to join, it says:
[WARNING] **** FAILED TO BIND TO PORT!

[WARNING] The exception was: java.net.BindException: Cannot assign requested address: JVM_Bind

[WARNING] Perhaps a server is already running on that port?"
You fucked up somehow in the Properties file, everything has to be correct.

Q: "When I try to run my Minecraft.exe (or Minecraft_Server_Jar), it asks me what to open it with, wtf do I do?!?"
A: Make sure you have the latest version of Java installed. If it still doesn't open, rename the file to "minecraft_server.exe" (rename the minecraft_server_jar file to "minecraft_server.jar" if you can't run that either).
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Q: "I'm endlessly falling into a giant hole, what the hell do I do?"
A: You computer is not powerful enough to render the world, the only thing you can do is upgrade your computer.
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I keep on getting Connection Timed Out what's going on?
It could be that Minecraft is updating their servers (most likely answer), or you have your firewall/anti-virus blocking Minecraft
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