import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';
import { AppComponent } from './app.component';
import { ServerComponent } from './server/server.component';

@NgModule({
  declarations: [
    AppComponent,
    ServerComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    HttpModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

<p>App Coponent</p>
<hr>
<app-server></app-server>

import { Component } from '@angular/core';

@Component({
    selector: 'app-server',
    template: './server.component.html'
})
export class ServerComponent {

}

<p>The server component</p>

@Component({
    selector: 'app-server',
    template: './server.component.html'
})

@Component({
    selector: 'app-server',
    templateUrl: './server.component.html'
})