為 Mqtt 代理使用自簽名 ssl 證書時出錯

Question

我正在使用帶有用戶名和密碼身份驗證的蚊子代理。 經紀人 URL 已公開，因此可以通過 Django web 站點訪問它，樹莓派現在正在嘗試實施 ssl 證書身份驗證。 但我收到類似的錯誤

unknown ca, [Win Error 10054] An existing connection was forcibly closed by the remote host ,
hand shake failed 

如何解決這個問題。

http://www.steves-inte.net-guide.com/mosquitto-tls/我正在按照本文創建 ssl 證書。 在公共 url 的 mqtt 代理中使用自簽名證書有什么問題嗎？

我的 mosquitto.conf 文件看起來像這樣

persistence true
persistence_location /var/lib/mosquitto/
log_dest file /var/log/mosquitto/mosquitto.log
include_dir /etc/mosquitto/conf.d
listener 8883
use_identity_as_username true
cafile /etc/mosquitto/ca_certificates/ca.crt
keyfile /etc/mosquitto/certs/server.key
certfile /etc/mosquitto/certs/server.crt
require_certificate true

像這樣從 rasberry pi 調用代理

client.tls_set(ca_certs = "certificate path")
client.tls_insecure_set(True)

import time

import paho.mqtt.client as mqtt

# The callback for when the client receives a CONNACK response from the server.


def on_connect(client, userdata, flags, rc):
    print("Connected with result code "+str(rc))

    # Subscribing in on_connect() means that if we lose the connection and
    # reconnect then subscriptions will be renewed.
    client.subscribe("$SYS/#")

# The callback for when a PUBLISH message is received from the server.


def on_message(client, userdata, msg):
    print(msg.topic+" "+str(msg.payload))


client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
broker = "broker name"
#mqtt_port = 1883
mqtt_port = 8883

client = mqtt.Client(str(int(time.time())))  # create client object

client.tls_set("./ca.crt")
client.tls_insecure_set(True)
client.connect(broker, mqtt_port)
client.loop_start()

Answer 1

首先，您應該從 mosquitto.conf 中刪除以下行

use_identity_as_username true
require_certificate true

它們僅在您使用不在提供的代碼中的客戶端證書時使用。

其次，假設文件ca.crt與腳本位於同一目錄中，並且您從哪里開始執行以下操作。 （它還假定代理證書具有匹配的 CA/SAN 條目以匹配代理主機名/IP 地址）

...
client.tls_set_context()
client.tls_set(ca_path="./ca.crt")
client.connect(broker, mqtt_port)
client.loop_start()

另一個選項是這將禁用檢查代理的證書是否由任何 CA 簽名以及它的 CA/SAN 是否與用於訪問代理的主機名匹配。

...
client.tls_set_context()
client.tls_insecure_set(True)
client.connect(broker, mqtt_port)
client.loop_start()