SSH login failures

[matteob86]

hi to everybody!

everyday i get this message from my Truenas:

322 SSH login failures: May 2 00:48:31 truenas 1 2022-05-02T00:48:31.486427+02:00 truenas.local sshd 52338 - - Invalid user pi from 191.251.84.146 port 53326 May 2 00:48:31 truenas 1 2022-05-02T00:48:31.655425+02:00 truenas.local sshd 52339 - - Invalid user pi from 191.251.84.146 port 53342 ... 318 more ... May 2 23:17:27 truenas 1 2022-05-02T23:17:27.671836+02:00 truenas.local sshd 71951 - - error: kex_exchange_identification: client sent invalid protocol identifier "-HSS2.0-PUTTY" May 2 23:17:27 truenas 1 2022-05-02T23:17:27.671984+02:00 truenas.local sshd 71951 - - banner exchange: Connection from 61.177.172.124 port 40069: invalid format​

2022-05-03 00:00:19 (Europe/Rome)

why? what does it means? i'm trying to install NextCloud with Danb35's script

thanks

 

[NugentS]

Is that your IP address?
Assuming it isn't it implies to me that you have exposed the wrong ports to the internet