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飞鱼星官方日志服务器为win软件，无法顺利在linux上运行，甚至在win7上运行也无法成功

废话少说，简单记录

0、选型：nodejs（dgram、mysql）、mysql、forever

1、安装nodejs、npm（win、linux），自行脑补

2、抓包udp，使用到了wireshark 下载地址https://1.na.dl.wireshark.org/win64/Wireshark-win64-2.2.4.exe

分析包内容 type1:4Byte，type2:4Byte，ip：32Byte，msg:剩余，端口：服务器20000，客户端2000

3、分析官方vls数据表结构得到基本元素（ip，type1，type2，msg）（最终没使用其官方表结构）

4、创建项目目录/path/to/vls，初始化项目，否则npm报错（win），npm init -f

5、npm安装dgram以处理UDP包npm install dgram -g

6、npm安装mysql以连接数据库npm install mysql -g

7、服务端代码后附

8、防火墙（如果有，请开放200000端口，请自行脑补）

9、安装forever npm install forever -g

10、创建自启动脚本/etc/init.d/vls并设置可执行权限，代码后附

11、启动service vls start

12、设置开机自启动chkconfig vls on

服务端代码

const dgram = require('dgram');
const server = dgram.createSocket('udp4');
const mysql = require('mysql');

var conn = mysql.createConnection(
    {host:'localhost', user:'root', password:'', database:'vls', port:'3306'}//修改成自己的数据库信息
);
conn.connect();
server.on('error', function(err) {
  console.log('server error:\n'+$err.stack);
  server.close();
});

server.on('message', function (msg, rinfo) {
  if(rinfo.address=='*.*.*.*' && rinfo.port=='2000'){//修改成设备ip
    var s1 = msg.slice(0,4);
    var s2 = msg.slice(4,8);
    var s3 = msg.slice(8,40);
    var s4 = msg.slice(40);
    conn.query('insert into test (ip,type1,type2,msg) values(?, ?, ?, ?)',[s3.toString().replace(/\s+$/g,""),s1.readInt32BE(0),s2.toString('hex'),s4.toString().replace(/\s+$/g,"")],function(error,results,fields){});
    console.log('server got: %d from %s:%d',msg.length,rinfo.address,rinfo.port);
  }
});

server.on('listening', function() {
  var address = server.address();
  console.log('server listening %s:%d',address.address,address.port);
});

server.on('close', function(msg) {
  console.log('server has been closed %s',msg);
});

server.bind(20000);

自启动脚本

#!/bin/bash
#
# node      Start up node server daemon
#
# chkconfig: 345 85 15
# description: Forever for Node.js
#
PATH=/usr/bin
DEAMON=/path/to/vls/vls.js
LOG=/var/log/vls
PID=/var/run/vls.pid

case "$1" in
    start)
        forever start -l $LOG/vls.log -o $LOG/vls_out.log -e $LOG/vls_err.log --pidFile $PID -a $DEAMON
        ;;
    stop)
        forever stop --pidFile $PID $DEAMON
        ;;
    stopall)
        forever stopall --pidFile $PID
        ;;
    restartall)
        forever restartall --pidFile $PID
        ;;
    reload|restart)
        forever restart -l $LOG/vls.log -o $LOG/vls_out.log -e $LOG/vls_err.log --pidFile $PID -a $DEAMON
        ;;
    list)
        forever list
        ;;
    *)
        echo "Usage: /etc.init.d/vls {start|stop|restart|reload|stopall|restartall|list}"
        exit 1
        ;;
esac
exit 0

数据库(索引自己加)

create table vls (id bigint(20) auto_increment primary key, ip char(15) not null default '',type1 int(8) not null default 0,type2 binary(8) not null default '\0\0\0\0\0\0\0\0',msg char(576) not null default '',dateline timestamp not null default CURRENT_TIMESTAMP);

更深入的分析请自行脑补