我在 OpenVPN 服务器日志中看到随机 IP 地址 -
20:38:08 2019 TLS Error: cannot locate HMAC in incoming packet from [AF_INET] xxx.xxx.xxx.xx:45345'
09:14:22 2019 TLS Error: cannot locate HMAC in incoming packet from [AF_INET]xxx.xxx.xxx.xx:52918'
18:26:24 2019 TCP connection established with [AF_INET]xxx.xxx.xxx.xx:43551'
18:26:55 2019 xxx.xxx.xxx.xx:43551 Connection reset, restarting [-1]'
18:26:55 2019 xxx.xxx.xxx.xx:43551 SIGUSR1[soft,connection-reset] received, client-instance restarting'
这是我应该担心的事情吗？还是只是人们在扫描端口？