Please help

[GuyFromRussia]

First, you need to download the server: http://builds.mc-server.org/ (choose the version according to your operating system, x86 = 32-bit, x64 = 64-bit)
Unpack the file downloaded from the build server to a folder.
If you're on Windows, double-click the MCServer.exe file in the MCServer folder. If you're on Linux, run the MCServer executable inside MCServer folder.

That's it, easy.

Ну а как установить IP адрес? Изменить название сервера и его описание?

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First, you need to download the server: http://builds.mc-server.org/ (choose the version according to your operating system, x86 = 32-bit, x64 = 64-bit)
Unpack the file downloaded from the build server to a folder.
If you're on Windows, double-click the MCServer.exe file in the MCServer folder. If you're on Linux, run the MCServer executable inside MCServer folder.

That's it, easy.

И еще, как выдать себе права администратора? Команда /op Nickname не работает!