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CentOS 安装Mosquitto及测试
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系统信息，阿里云服务器
安装工具
yum install gcc gcc-c++
yum install openssl-devel
yum install c-ares-devel
yum install libuuid-devel
yum install wget
yum install cmake
yum install build-essential python quilt devscripts python-setuptools python3
yum install libssl-dev libc-ares-dev uuid-dev daemon openssl-devel
下载并编译安装libwebsockets
wget https://libwebsockets.org/git/libwebsockets/snapshot/libwebsockets-2.0.2.tar.gz
tar zxvf libwebsockets-2.0.2.tar.gz
cd libwebsockets-2.0.2
mkdir build
cd build
cmake .. -DLIB_SUFFIX=64
make install
ldconfig
修正链接库
vim /etc/ld.so.conf.d/liblocal.conf
/usr/local/lib64
/usr/local/lib
ldconfig
下载并编译安装mosquitto
wget http://mosquitto.org/files/source/mosquitto-1.4.9.tar.gz
tar -xzvf mosquitto-1.4.9.tar.gz
cd mosquitto-1.4.9
更改configure.mk中
WITH_WEBSOCKETS:=no
为
WITH_WEBSOCKETS:=yes
make
make install
cp mosquitto.conf /etc/mosquitto
修改mosquitto.conf文件
在/etc/mosquitto/mosquitto.conf的Default Listener一节添加如下几行：
运行mosquitto
mosquitto -c /etc/mosquitto/mosquitto.conf
mosquitto -c /etc/mosquitto/mosquitto.conf -v
或mosquitto -c /etc/mosquitto/mosquitto.conf -d
本机测试mosquitto
在服务器上新建两个shell，A和B
A 订阅主题：
mosquitto_sub -t topicA
B 推送消息：
mosquitto_pub -t topicA -h localhost -m "topicA test"
远程测试
下载安装MQTT.fx，下图设置服务器地址
下图设置订阅的topic
下图是服务器发布，MQTT.fx和本机订阅收到的信息
下图是MQTT.fx发布，服务器上订阅收到的信息
至此已经将MQTT服务器初步搭建成功。感谢网络上的一些文字的帮助
http://www.cnblogs.com/littleatp/p/4835879.html
http://blog.csdn.net/qhdcsj/article/details/45042515
./mosquitto_sub: error while loading shared libraries: libmosquitto.so.1: cannot open shared object file: No such file or directory
执行命令：
sudo ln -s /usr/local/lib/libmosquitto.so.1 /usr/lib/libmosquitto.so.1
和
ldconfig
即可
