$ curl cheat.sh/
# sshd
# Secure Shell Daemon - allows remote machines to securely log in to the current machine.
# Remote machines can execute commands as it is executed at this machine.
# More information: <https://man.openbsd.org/sshd>.

# Start daemon in the background:
sshd

# Run sshd in the foreground:
sshd -D

# Run with verbose output (for debugging):
sshd -D -d

# Run on a specific port:
sshd -p port

$
Follow @igor_chubin cheat.sh tldr