LogLevel INFO
#LogLevel DEBUG

PidFile none

Port 2200
Protocol 2

HostKey /etc/ssh/host_keys/rsa

# https://cipherli.st/
KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com

AllowUsers dump
AuthenticationMethods publickey
PubkeyAuthentication yes
PasswordAuthentication no
ChallengeResponseAuthentication no
# dont check file permissions
StrictModes no

AllowAgentForwarding no
AllowStreamLocalForwarding no
AllowTcpForwarding no
DisableForwarding yes
GatewayPorts no
PermitTTY no
PermitTunnel no
PermitUserEnvironment no
PrintMotd no
X11Forwarding no

# sshd invokes shell set in /etc/passwd
ForceCommand exit 1