我正在尝试在我的 Raspberry Pi 3 上使用 SSL 设置 Mosquitto。我遵循了本教程

现在我的 mosquitto.conf 是：

listener 8883
cafile /etc/mosquitto/certs/mosq-ca.crt
certfile /etc/mosquitto/certs/mosq-serv.crt
keyfile /etc/mosquitto/certs/mosq-serv.key

但是当我运行推荐时：

mosquitto_sub -t "#" -v --cafile /etc/mosquitto/certs/mosq-ca.crt -p 8883

我得到：

Error: connection refused

我已经删除了/etc/mosquitto/conf.d/mosquitto.conf。该文件现在是空的。现在默认的 mosquitto.conf 是：

pid_file /var/run/mosquitto.pid 
persistence true persistence_location /var/lib/mosquitto/ 
log_dest file /var/log/mosquitto/mosquitto.log 
include_dir /etc/mosquitto/conf.d 
listener 8883 
cafile /etc/mosquitto/certs/mosq-ca.crt 
certfile /etc/mosquitto/certs/mosq-serv.crt 
keyfile /etc/mosquitto/certs/mosq-serv.key 

但我还是收到

Error: connection refused

我做错了什么或我忘记做什么？

当我使用时（我不会监听端口 8883）sudo mosquitto -v：

1514921332: mosquitto version 1.4.10 (build date Mon, 29 May 2017 13:43:29 +0100) starting
1514921332: Using default config.
1514921332: Opening ipv4 listen socket on port 1883.
1514921332: Opening ipv6 listen socket on port 1883.

我的/var/log/mosquitto/mosquitto.log日志：

 1514932164: Config loaded from /etc/mosquitto/mosquitto.conf.
    1514932164: Opening ipv4 listen socket on port 8883.
    1514932164: Opening ipv6 listen socket on port 8883.
    1514932373: Error in poll: Interrupted system call.
    1514932373: mosquitto version 1.4.10 terminating
    1514932378: mosquitto version 1.4.10 (build date Mon, 29 May 2017 13:43:29 +010$

错误已经感谢： Error: A TLS error occurred.