user management
Create Service Account
sudo pw adduser proxmox -u 1005 -s /usr/sbin/nologin
Create deploy user
pw user add -n deploy -d /home/deploy -m -s /bin/sh
Create SFTP Only User
adduser pw groupmod sftpdump -m <username> pw usermod <username> -s /sbin/nologin
Modify /etc/passwd Directly, Safely
vipw