What is out there that uses musl without PAM and hosts an OpenSSH SSHd with PasswordAuthentication?

Possibly public SFTP servers. I have allowed null passwords in the past for anonymous public SFTP and I run Alpine Linux exclusively for my servers both VM's and physical. The shadow package (PAM) did not get installed by default. I installed it but I had to specify it in the installation so there are likely people without it. There is probably a way to find them on shodan.io.

I will activate one for people to play around with for today:

    sftp [email protected]

There's no firewall and no password. Hack away HN.

    PasswordAuthentication yes
    PermitEmptyPasswords yes

cd /pub

get so*