- Mosquitto:https://mosquitto.org/
- VerneMQ:https://vernemq.com/
- EMQTT:http://emqtt.io/
Mosquitto 是当前用户最多的一款产品,用C开发的。其他两个(VerneMQ、EMQTT)是用Erlang语言开发的。
CentOS7 里安装Mosquitto Broker
(1)安装mosquitto
# yum -y install epel-release # yum -y install mosquitto
启动服务
# systemctl start mosquitto # netstat -nlp | grep 1883
测试确认(开启2个Terminal分别执行以下2个命令)
# mosquitto_sub -h localhost -t test/rensanning/mosquitto/t1 # mosquitto_pub -h localhost -t test/rensanning/mosquitto/t1 -m "hello world"
执行完mosquitto_pub命令后,在mosquitto_sub窗口能看到"hello world"消息的显示。
(2)设置密码
# mosquitto_passwd -c /etc/mosquitto/passwd rensanning Password:123456 Reenter password:123456 # mv /etc/mosquitto/mosquitto.conf /etc/mosquitto/mosquitto.conf.bak # vi /etc/mosquitto/mosquitto.conf allow_anonymous false password_file /etc/mosquitto/passwd # systemctl restart mosquitto
密码确认
# mosquitto_pub -h localhost -t test/rensanning/mosquitto/t2 -m "hello world2" Connection Refused: not authorised. Error: The connection was refused. # mosquitto_sub -h localhost -u "rensanning" -P "123456" -t test/rensanning/mosquitto/t2 # mosquitto_pub -h localhost -u "rensanning" -P "123456" -t test/rensanning/mosquitto/t2 -m "hello world2"
执行完mosquitto_pub命令后,在mosquitto_sub窗口能看到"hello world2"消息的显示。
配置文件mosquitto.conf的举例内容可以参考官网说明:
https://mosquitto.org/man/mosquitto-conf-5.html
(3)客户端工具确认
使用Eclipse Paho MQTT Utility连接搭建的服务器测试确认。
设置用户名和密码
连接、订阅、发布确认
Windows 7里安装Mosquitto Broker
(1) 从 https://mosquitto.org/download/ 下载安装文件mosquitto-1.4.14-install-win32.exe
(2) 执行安装文件会提示下载OpenSSL 和 pThreads。
(3) 继续执行完安装后,会提示SSLEAY21.dll找不到。
(4) 下载 Win32OpenSSL_Light-1_0_2n.exe 并安装。(注意选择把OpenSSL DLLS复制到 OpenSSL的安装目录下)
OpenSSL: http://slproweb.com/products/Win32OpenSSL.html
(5) 下载 pthreadVC2.dll
pThreads: ftp://sources.redhat.com/pub/pthreads-win32/dll-latest/dll/x86/
(6) 把下边三个文件复制到 C:\Program Files (x86)\mosquitto 里。
C:\Program Files (x86)\OpenSSL-Win32\libeay32.dll
C:\Program Files (x86)\OpenSSL-Win32\ssleay32.dll
pthreadVC2.dll
(7) 再次执行 安装文件 mosquitto-1.4.14-install-win32.exe 就可安装完成。
(8) 通过控制面板>管理工具>服务,启 Mosquitto Broker 服务后在命令行工具里执行 netstat -an 查看端口是否开启。
参考:
https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-the-mosquitto-mqtt-messaging-broker-on-centos-7