How to make a Minecraft server?

A while ago I was looking through Google to see how to make a Minecraft server, and I saw something about making a Minecraft server with a built-in server file or something.

Is there any easy way to make a server without any odd port-forwarding stuff and buying Minecraft servers? I see some people made a bunch of them for testing worlds. But I just want to play with my friends…

Is my Realm dying?

Me and a friend have started a realm minecraft servers a little over a month ago, and we recently noticed some odd things happening. To start it off, both of our houses would spontaneously catch fire without warning, despite there being no lightning, no lava or fireplaces.

Basically nothing that could cause a fire. Soon after that, we saw a few explosions in our main base, and a corresponding amount of TNT was missing from one of my chests. Now, occasionally when one of us logs into the server, there’s a chunk blown out of my house. Neither of us can explain it. Anyone experiencing anything similar?

I am the minecraft server owner, and he is the only other person there. He and I have both been present for quite a few of these events, so I can verify that it is NOT him.

Please help!

Suggestion: Piranhas in jungle rivers and lakes!

I guess all of us have at some point seen piranhas, whether it be on television or in a Zoo, or maybe even in a jungle. In that case you know how aggressive creatures these are.

Purpose

Replacing drowned in rivers as they make more sense in the ocean in my opinion, and making the jungle a little harder to traverse considering the rewards you get for visiting.

Behaviour

These fish behave almost like a cross between silverfish and fish. Ironic that silverfish aren’t actually fish.

HP: 2. Hand damage is 1 and full player health is 20 for those curious. if a piranha is damaged, but not killed, all other piranhas in a 20 block radius will come and try attacking you.

Attack: The piranha will be able to attack you once every second, dealing 1 damage.

Piranhas have a 30% chance of spawning in packs of 5-10, packs/individual piranhas spawn at the same rate as drowns do in rivers.

Packs will have one individual attacking you if you swim through the water, and if you attack back or kill him, his pack will attack you, but other piranhas in proximity won’t get notified.

Reward

Piranhas are excellent for XP, and drop 3-5 XP. They also have a 15% chance of dropping a tropical fish.