Mosquitto docker 客户端上的套接字错误<unknown>，断开连接

Question

我已经在docker(树莓派4(上安装了mosquitto，使用证书来保护连接。我没有在mosquito中配置用户名和密码。我正在使用此代码将我的wemos d1 mini连接到具有pubsubclient的mosquito。

https://github.com/debsahu/ESP_MQTT_Secure/blob/master/ESP8266_MQTT_SSL/Arduino/ESP8266_PubSubClient_SSL/ESP8266_PubSubClient_SSL.ino

我没有使用secrets.h文件，但我以前尝试过，得到了相同的结果。

插入凭据后，mqtt数据和ca.crt我得到以下串行输出：

Attempting to connect to SSID: MYSSID ... connected! 
Setting time using SNTP.done! 
Current time: Wed Feb 19 13:53:17 2020 Time: Wed Feb 19 13:53:17 2020 
MQTT connecting ... failed, status code =-2. Try again in 5 seconds. 
MQTT connecting ... failed, status code =-2. Try again in 5 seconds. 
MQTT connecting ... failed, status code =-2. Try again in 5 seconds.

mosquito给出以下日志：

1582138400: New connection from 192.168.0.8 on port 8883. 
1582138405: Socket error on client <unknown>, disconnecting. 
1582138405: New connection from 192.168.0.8 on port 8883. 
1582138413: New connection from 192.168.0.8 on port 8883. 
1582138418: Socket error on client <unknown>, disconnecting. 
1582138418: New connection from 192.168.0.8 on port 8883. 
1582138424: Socket error on client <unknown>, disconnecting. 
1582138424: New connection from 192.168.0.8 on port 8883. 
1582138429: Socket error on client <unknown>, disconnecting. 
1582138429: New connection from 192.168.0.8 on port 8883. 
1582138434: Socket error on client <unknown>, disconnecting. 
1582138435: New connection from 192.168.0.8 on port 8883.
1582138440: Socket error on client <unknown>, disconnecting. 
1582138440: New connection from 192.168.0.8 on port 8883. 
1582138443: Client <unknown> has exceeded timeout, disconnecting.

至少我得到了最后一行：由于超时而断开连接。192.168.0.8是wemos D1 mini。我以前使用MQTTfx通过ca.crt文件连接到mosquito，它工作得很好。

我的蚊子conf:

allow_anonymous true
port 8883
cafile /ca.crt
keyfile /server.key
certfile /server.crt
tls_version tlsv1.2
persistence true
persistence_location /mosquitto/data/

为什么mosquitto不认识我在代码中指定的客户名称？为什么我不能连接到蚊子？我该如何解决这个问题？

我也用用户名和密码试过，结果是一样的！

Answer 1

我的mosquitto.conf文件现在看起来像这样：

allow_anonymous false
password_file /mosquitto/data/passwordfile.txt

port 8883
cafile /ca.crt
keyfile /server.key
certfile /server.crt
tls_version tlsv1.2
persistence false
persistence_location /mosquitto/data/
log_type all

这是我现在使用的代码，只需插入您的凭据和证书：

//Simple boolean to indicate first startup loop
bool startup = false;


// Define Your Settings

const char* ssid = "";
const char* password = "";
const char* mqtt_server = "";
const char* mqtt_username = "";
const char* mqtt_password = "";
const char* mqtt_clientname = "";
const int mqtt_port = 8883;


//Replace with you issuing certificate authority Base64 format
//This is also known as the "intermediate" authority that issued
//your certificate (client.crt)
static const char digicert[] PROGMEM = R"EOF(
-----BEGIN CERTIFICATE-----

INSERT YOUR CERT

-----END CERTIFICATE-----
)EOF";

void setup(){     
WiFi.begin(ssid, password);
Serial.println("Connecting to WiFi.");
int _try = 0;
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(500);
_try++;

// if connection not possible, go to deep-sleep
//if ( _try >= 10 ) {
//Serial.println("Can't connect to wifi, go to deep-sleep");
//ESP.deepSleep(durationSleep * 1e6);
//}
}
Serial.println("Connected to the WiFi network");
//****
//Important to set setTrustAnchors to verify certificates
//setInsecure() will allow the ssl connection without verification
//****
//client.setInsecure(); //WARNING Do NOT verify server

client.setTrustAnchors(&cert);
//NTP is required for CA Cert Validation
setClock();

//Connect to your MQTT Server and set callback
mqttclient.setServer(mqtt_server, mqtt_port);
}

我刚从一个项目中复制了这个，可能少了一些行。如果是，请告诉我，我会尝试创建一个干净的代码。但总的来说，它应该起作用。