How come I have to run Minecraftforge Universal server to get mods to work?

[Deathpoint]

I used the Installer to make the server.

 

Everyone I see in videos and tutorials uses the Minecraft_server.jar and their mods run right. I don't get any errors and the items in the mods load but none of the functionality of the mods work. If I run Minecraftforge_Universal then the mods load and work. I just want to know how everyone else is getting that other jar to work and whether I'm doing something wrong.

 

What is the difference between those two server files?

 

Thanks.

[LexManos]

minecraft_server is the vanilla minecraft server jar and will not load mods without editing

minecraftforge_universal is the jar containing all of our edits and running it will run minecraft_server, but with our changes.

The tutorials you've been watching are old, they have merged the two jars manually, this is a bad thing to do and you shouldn't be doing it.

 

[Deathpoint]

Thanks a lot for the answer.