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/************
Content Security policy Jhipster
**********/

/* Use directives as per your requirement like image-src and default-src for defaults of all*/
// Single line CSP  
.headers()
  .contentSecurityPolicy("default-src 'self';")
            
// Multi Line CSP joined by and

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# One Kafka container and One Zookeeper COntainer with volumes configured

version: '2'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:5.3.0
    container_name: zookeeper
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

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sudo mv /var/lib/dpkg/status /var/lib/dpkg/_status/
&& touch /var/lib/dpkg/status /
&& sudo apt update && sudo apt upgrade

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///// THe base 64 url with media type at start
data:image/png;base64,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https://www.linuxbabe.com/mail-server/setting-up-dkim-and-spf

https://www.linuxbabe.com/mail-server/opendmarc-postfix-ubuntu

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<!-- Spring Socket Dependencies for Web Sockets -->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
  <groupId>org.springframework.security</groupId>
  <artifactId>spring-security-messaging</artifactId>
</dependency>

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package com.tekraze.kafka.config;
import com.tekraze.kafka.security.AuthoritiesConstants;
import java.security.Principal;
import java.util.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.server.*;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.core.authority.SimpleGrantedAuthority;

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package com.tekraze.kafka.config;

import com.tekraze.kafka.security.AuthoritiesConstants;

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.SimpMessageType;
import org.springframework.security.config.annotation.web.messaging.MessageSecurityMetadataSourceRegistry;
import org.springframework.security.config.annotation.web.socket.AbstractSecurityWebSocketMessageBrokerConfigurer;

@Configuration

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package com.tekraze.kafka.web.websocket;

import static com.tekraze.kafka.config.WebsocketConfiguration.IP_ADDRESS;
import com.tekraze.kafka.web.websocket.dto.ActivityDTO;
import java.security.Principal;

import java.time.Instant;
import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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package com.tekraze.kafka.web.websocket.dto;

import java.time.Instant;

/**
* DTO for storing a user's activity.
*/
public class ActivityDTO {

  private String sessionId;