PasswordAuthentication no
KbdInteractiveAuthentication no
PermitRootLogin prohibit-password
PubkeyAuthentication yes
AuthenticationMethods publickey
X11Forwarding no
AllowAgentForwarding no
AllowTcpForwarding no
GatewayPorts no
PermitTunnel no
PermitUserEnvironment no
MaxAuthTries 3
LoginGraceTime 20
ClientAliveInterval 60
ClientAliveCountMax 3
UseDNS no