This Command Is Called Server Safety.It Adds Many Features Such As You Cannot Have Tnt, Tnt Minecarts, Fire Charge And Flint And Steel In Your Inventory. Also It Will Tell You If Some One Is In Creative And They Cheater / Hacker Lets Of Tones Of Particles So They Are Easy To See / Find. The Best Feature Of This Creation Is On The Machine There Is A Mod Sign If You Click It You Are Mod Therefore All Of The Features Listed Above Will Not Aply To You. I Hope You Enjoy And Please Check Out My Channel ~ Blue :)
First, you must give yourself a command block (If you are on a server, you must be 'OP'ed, and have access to /gamemode 1)
To get a command block, type /give @p command_block in the chat.
Once you have a command block, right click it to open it's GUI.
Now, you must copy and paste the command from your browser into the game. Select the entire command from below, then right click and press 'copy'.
Next, go back to your minecraft world, and paste the command you just copied into the command block. There are a few different keys that may be used to do this, depending on your keyboard. The most common ones are 'CTRL + V', 'COMMAND + V', or 'STRG + V'
Finally, you can press done to exit the GUI, and execute the command block by powering it with a redstone block, a lever, or any thing you can get your grubby hands on. Just make sure you don't place it on top of the command block, or the machine will not be installed!