开启frpc进程后，ssh日志不断刷新尝试登录日志

[kavin1028]

Bug Description

开启frpc进程后，ssh日志不断刷新尝试登录日志

frpc Version

0.44.0

frps Version

0.39.1

System Architecture

linux/amd64

Configurations

[common] server_addr = xxxxx server_port = xxx token = [sftp] type = tcp local_ip = xxx local_port = xxx remote_port = xxx

Logs

Aug 15 18:28:54 sftpsvr sshd[17300]: Received disconnect from 127.0.0.1 port 60746:11: Normal Shutdown, Thank you for playing [preauth] Aug 15 18:28:54 sftpsvr sshd[17300]: Disconnected from 127.0.0.1 port 60746 [preauth] Aug 15 18:29:03 sftpsvr sshd[17302]: Invalid user licongcong from 127.0.0.1 port 60748 Aug 15 18:29:03 sftpsvr sshd[17302]: input_userauth_request: invalid user licongcong [preauth] Aug 15 18:29:03 sftpsvr sshd[17302]: Received disconnect from 127.0.0.1 port 60748:11: Normal Shutdown, Thank you for playing [preauth] Aug 15 18:29:03 sftpsvr sshd[17302]: Disconnected from 127.0.0.1 port 60748 [preauth] Aug 15 18:29:13 sftpsvr sshd[17304]: Invalid user licongcong from 127.0.0.1 port 60750 Aug 15 18:29:13 sftpsvr sshd[17304]: input_userauth_request: invalid user licongcong [preauth] Aug 15 18:29:14 sftpsvr sshd[17304]: Received disconnect from 127.0.0.1 port 60750:11: Normal Shutdown, Thank you for playing [preauth] Aug 15 18:29:14 sftpsvr sshd[17304]: Disconnected from 127.0.0.1 port 60750 [preauth]

Steps to reproduce

...

Affected area

• [ ] Docs
• [ ] Installation
• [ ] Performance and Scalability
• [X] Security
• [ ] User Experience
• [ ] Test and Release
• [ ] Developer Infrastructure
• [ ] Client Plugin
• [ ] Server Plugin
• [ ] Extensions
• [ ] Others

[Becods]

恶意爆破，尝试更换其他端口或换用stcp

[ricky0829]

这是基本常识，SSH 端口暴露出去会被扫 + 爆破。要么改用私钥登录，关闭密码登录；要么采取一些流量控制措施或 fail2ban 之类的应用抑制登录尝试次数；还可以尝试一些蜜罐应用。

[github-actions[bot]]

Issues go stale after 30d of inactivity. Stale issues rot after an additional 7d of inactivity and eventually close.