报错日志

EMQX
1

2022-09-01T10:57:22.365756+08:00 [error] 118.123.105.87:45578 [MQTT] , Parse failed for malformed_utf8_string, [{emqx_frame,parse_utf8_string,2,[{file,“emqx_frame.erl”},{line,513}]},{emqx_frame,parse_packet,3,[{file,“emqx_frame.erl”},{line,226}]},{emqx_frame,parse_frame,4,[{file,“emqx_frame.erl”},{line,201}]},{emqx_connection,parse_incoming,3,[{file,“emqx_connection.erl”},{line,655}]},{emqx_connection,handle_msg,2,[{file,“emqx_connection.erl”},{line,648}]},{emqx_connection,process_msg,2,[{file,“emqx_connection.erl”},{line,394}]},{emqx_connection,handle_recv,3,[{file,“emqx_connection.erl”},{line,358}]},{proc_lib,wake_up,3,[{file,“proc_lib.erl”},{line,236}]}], Frame data:<<22,3,3,1,89,1,0,1,85,3,3,233,191,210,29,223,150,151,222,158,147,176,109,126,64,207,133,153,69,84,53,9,109,242,222,20,231,236,70,215,46,188,210,32,56,224,121,229,108,13,105,11,228,46,47,248,231,71,249,169,183,20,40,235,5,15,49,254,141,96,91,119,189,78,38,228,0,70,192,18,192,7,204,20,19,1,19,2,204,169,192,115,192,114,192,44,192,175,192,…>>

环境信息

  • EMQX 版本：开源4.4.7
  • 操作系统及版本：censtos 8
  • 其他

问题描述

配置文件及日志

2

看这个报错，你似乎是使用了非 UTF-8 编码

3

老师有一些不知的IP 来连接服务器，有什么办法屏蔽吗

4

使用 ACL 功能

6

别用常用的端口号，能大大减少哪些试探脚本的扫描。 。