第一部分：
sudo lsb_release -a
sudo apt-get update
sudo apt-get install erlang-nox
sudo apt-get install rabbitmq-server

sudo rabbitmqctl status
sudo rabbitmq-plugins enable rabbitmq_management
sudo rabbitmq-plugins enable rabbitmq_mqtt

http://192.168.x.x:15672/

sudo service rabbitmq-server restart
sudo rabbitmqctl list_users
sudo rabbitmqctl add_user admin 123456
sudo rabbitmqctl set_user_tags admin administrator
已经可以登录

第二部分：

参考资料：
https://www.jianshu.com/p/055c0e35c7f6

为啥要编译，希望编译些模块
Ubuntu 20.04 LTS集成的版本nginx version: nginx/1.18.0 (Ubuntu)

wget 'http://nginx.org/download/nginx-1.18.0.tar.gz'
tar -xzvf nginx-1.18.0.tar.gz

wget 'https://github.com/winshining/nginx-http-flv-module/archive/v1.2.8.tar.gz'
tar -xzvf v1.2.8.tar.gz

cd nginx-1.18.0
./configure --add-module=/home/user/nginx/nginx-http-flv-module-1.2.8

提示：error: the HTTP rewrite module requires the PCRE library
sudo apt-get install libpcre3-dev
配置成功，默认位置，可以通过--prefix=/usr/local/nginx配置

  nginx path prefix: "/usr/local/nginx"
  nginx binary file: "/usr/local/nginx/sbin/nginx"
  nginx modules path: "/usr/local/nginx/modules"
  nginx configuration prefix: "/usr/local/nginx/conf"
  nginx configuration file: "/usr/local/nginx/conf/nginx.conf"
  nginx pid file: "/usr/local/nginx/logs/nginx.pid"
  nginx error log file: "/usr/local/nginx/logs/error.log"
  nginx http access log file: "/usr/local/nginx/logs/access.log"
  nginx http client request body temporary files: "client_body_temp"
  nginx http proxy temporary files: "proxy_temp"
  nginx http fastcgi temporary files: "fastcgi_temp"
  nginx http uwsgi temporary files: "uwsgi_temp"
  nginx http scgi temporary files: "scgi_temp"

- 阅读剩余部分 -

sudo apt-get install ffmpeg
太慢小时级别，需要换个阿里源分钟级别
ffmpeg -version
ffmpeg version 4.2.4-1ubuntu0.1

关于视频推送的一个项目RtspWebSocket
https://gitee.com/yzfar/RtspWebSocket/tree/master

npm install flv.js
下载素材
https://blog.csdn.net/qq_41672008/article/details/103676839

参考资料：
https://www.cnblogs.com/lonelamb/p/11620906.html

官网地址
https://github.com/fatedier/frp
下载地址
https://github.com/fatedier/frp/releases
服务端配置

wget https://github.com/fatedier/frp/releases/download/v0.34.0/frp_0.34.0_linux_amd64.tar.gz
tar -xvf frp_0.34.0_linux_amd64.tar.gz

可以建立一个frps_xxx.ini的配置文件

[common]
bind_port = 4001
dashboard_addr = 0.0.0.0
dashboard_port = 4002
dashboard_user = admin
dashboard_pwd = password
enable_prometheus = true
log_file = ./frps_xxx.log
use_encryption = true
use_compression = true
authentication_method = token
token = asdasd

然后用./frps -c ./frps_xxx.ini &来启动服务端
需要开放4001端口给外网，可以通过http://ip:4002访问网页

客户端仅需要frpc和frpc.ini就可以

[common]
server_addr = ip
server_port = 4001
token = asdasd
[ssh]
type = tcp
local_ip = 127.0.0.1
local_port = 22
remote_port = 1234
use_encryption = true
use_compression = true

把本地的ssh端口映射到服务端的1234，执行./frpc -c ./frpc.ini &

有啥用？暂时还不知道
首先是一些定义，串口设备需要一个id，比如通信模块可以用型号+imei，其它模块可以型号+序列号等
串口到MQ的主题：uart/id/miso
MQ到串口的主题：uart/id/mosi
首先初始化串口，由于mono下DataReceived有bug，所以采用线程处理

serialPort1 = new SerialPort();
serialPort1.BaudRate = 115200;
serialPort1.PortName = "/dev/ttyUSB4";
//mono补丁
Thread spThread = new Thread(new ThreadStart(DataReceived));
spThread.Start();
//serialPort1.DataReceived += SerialPort1_DataReceived;
serialPort1.Open();

- 阅读剩余部分 -