ubuntu mosquitto broker服务器搭建与测试

安装软件

sudo apt install mosquitto

生成CA密钥

openssl genrsa -des3 -out ca.key 2048

签发CA证书/根证书

openssl req -new -x509 -days 3650 -key ca.key -out ca.crt

生成服务端密钥

openssl genrsa -out server.key 2048

生成证书签名请求

openssl req -new -out server.csr -key server.key

让CA签发证书

openssl x509 -req -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out server.crt -days 360

修改mosquitto.conf内容
listener 8883
cafile /etc/mosquitto/ca_certificates/ca.crt
certfile /etc/mosquitto/certs/server.crt
keyfile /etc/mosquitto/certs/server.key
tls_version tlsv1.2

mqtt broker运行测试

mosquitto -c etc/mosquitto.conf 

1626408211: mosquitto version 2.0.11 starting
1626408211: Config loaded from etc/mosquitto.conf.
1626408211: Opening ipv4 listen socket on port 8883.

发布消息

mosquitto_pub -d -h localhost -t "topic/test" -m "hello world" --cafile /etc/mosquitto/ca_certificates/ca.crt -p 8883

订阅消息

mosquitto_sub -d -h localhost -t "topic/test" --cafile /etc/mosquitto/ca_certificates/ca.crt -p 8883

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