Re: USB-serial adapter suggestions needed

From: bob prohaska <fbsd_at_www.zefox.net>
Date: Tue, 09 Jan 2024 22:47:53 UTC 
> 
> For now all hosts run with powerd off in an attempt to 
> re-establish baseline behavior. 
>
 
The baseline is proving somewhat bumpy. The ssh connection
from workstation to terminal server pelorus.zefox.org (running tip to
www.zefox.org) reported:

....
FreeBSD/arm64 (www.zefox.org) (ttyu0)

login: Jan  9 11:51:49 www sshd[24536]: error: PAM: Authentication error for illegal user scott from 85.209.11.226
Jan  9 11:56:47 www sshd[24587]: error: PAM: Authentication error for root from 185.11.61.234
Jan  9 12:32:28 www sshd[24748]: error: Fssh_kex_protocol_error: type 20 seq 2 [preauth]
Jan  9 12:32:28 www sshd[24748]: error: Fssh_kex_protocol_error: type 30 seq 3 [preauth]
Jan  9 12:32:52 www sshd[24752]: error: PAM: Authentication error for root from ool-2f104b1f.dyn.optonline.net
Jan  9 12:32:54 www syslogd: last message repeated 4 times
client_loop: send disconnect: Broken pipe
bob@raspberrypi:~ $ ssh 50.1.20.24
Password for bob@pelorus.zefox.org:
Last login: Tue Jan  9 09:46:03 2024
FreeBSD 14.0-RELEASE-p4 (GENERIC) #0 releng/14.0-n265400-4edf3b80733e: Wed Dec 27 20:21:26 PST 2023

[rest of MOTD snipped]
....
bob@pelorus:~ % su
Password:
# tip ucom
Stale lock on cuaU0 PID=1142... overriding.
connected
[typed Enter]

FreeBSD/arm64 (www.zefox.org) (ttyu0)

....

Pelorus.zefox.org was idle at the time, www.zefox.org was running
a -j4 buildworld and busy. Nothing was running powerd. The Pi4 
workstation showed no other upset on any of the dozen ssh connections
open at the time. 

I'll keep watching.

bob prohaska