andysteel

import { enableProdMode, importProvidersFrom } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';
import { RouterModule } from '@angular/router';
import { routes } from './app/app-routing.module';
import { AppComponent } from './app/app.component';

import { environment } from './environments/environment';

if (environment.production) {
  enableProdMode();

andysteel

@ControllerAdvice
public class CustomExceptionControllerAdvice {

    @ExceptionHandler(MultipartException.class)
    void handleMultipartException(MultipartException ex,HttpServletResponse response) throws IOException {
        response.sendError(HttpStatus.BAD_REQUEST.value(),"Please select a file");
    }
  
    @ExceptionHandler(ConstraintViolationException.class)
    public void handleConstraintViolationException(ConstraintViolationException ex,HttpServletResponse response) throws IOException {

andysteel

pipeline {
    agent any
    tools {
        maven 'maven_3_8_2'
        jdk 'JDK 11'
    }

    stages {
        stage('Clone') {

andysteel

Using NGINX to prevent DDoS Attacks Nginx, a highly popular server system for Unix machines, comes with enough built-in functionality to greatly limit the effectiveness of DDoS attacks. These features could handle a DDoS attack by regulating the incoming traffic and by controlling the traffic as it is proxied to backend services.

Before you change any settings, make sure you make a quick backup of your server’s configuration. The following command works for this:

sudo cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.backup-original Nginx worker connections One of the important parameters that we tweak is the number of worker process and number of worker connections in the Nginx configuration file /etc/nginx/nginx.conf.

We’ll gradually adjust the worker process and worker connections to a higher or lower value for handling DDoS attacks.

andysteel

java -Xdebug -Xrunjdwp:transport=dt_socket,address=8998,server=y -jar myapp.jar

Configuring Eclipse to Debug a Remotely Running Application

1-Go to Run -> Debug Configurations

2-Create a new Remote Java Application configuration

andysteel

package br.gov.anp.andersondias.Connection;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;


public class ConnectionFactory {

    public Connection getConnection() throws SQLException {

andysteel

1. Get node binary (node.exe) from http://nodejs.org/download/
2. Create the folder where node will reside and move node.exe to it
3. Download the last zip version of npm from http://nodejs.org/dist/npm
4. Unpack the zip inside the node folder
5. Download the last tgz version of npm from http://nodejs.org/dist/npm
6. Open the tgz file and unpack only the file bin/npm (without extension) directly on the node folder.
7. Add the the node folder and the packages/bin folder to PATH
On a command prompt execute npm install -g npm to update npm to the latest version

andysteel

Open Port 80 Oracle Cloud Compute Instance (CentOS)

FYI This was harder than it needed to be:

1. Looking at your instance info, find VNIC section, click "Public Subnet".
2. Click on your security list.
3. Add a new entry with the following options:

• "Stateless" = No, "Source" = 0.0.0.0/0, "IP Protocol" = TCP, "Source Port Range" = All, "Destination Port Range" = 80

4. SSH to your instance.
5. While SSH'ed in your instance, run command firewall-cmd --permanent --add-service=http.
6. While SSH'ed in your instance, run command firewall-cmd --reload.
7. Now start Apache, NGINX, or whatever server you need to on port 80. You can now access from the internet.

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@POST
@Path("/getHelloWorld")
@Consumes(MediaType.APPLICATION_JSON)
public String helloWorld(@Context HttpServletRequest httpRequest) {
    X509Certificate[] certs = (X509Certificate[]) httpRequest.getAttribute("javax.servlet.request.X509Certificate");
    if (null != certs && certs.length > 0) {
        return <<YOUR CODE HERE>>;
    }
    return <<YOUR CODE HERE>>;
} 

andysteel

@Configuration
public class ConfigurationExample {

  @Bean(name = "multipartResolver")
  public CommonsMultipartResolver createMultipartResolver() {
    return new PostAndPutCommonsMultipartResolver();
  }
}