linux中隐藏 OpenSSH 版本，要求 SSH 源代码并进行重新编译的方法是什么？

# vi /etc/ssh/sshd_config
VerifyReverseMapping yes	# Turn on  reverse name checking
UsePrivilegeSeparation yes	# Turn on privilege separation
StrictModes yes			# Prevent the use of insecure home directory    
				# and key file permissions
AllowTcpForwarding no		# Turn off , if at all possible 
X11Forwarding no		# Turn off , if at all possible
PasswordAuthentication no	# Specifies whether password authentication is 
				# allowed.  The default is yes. Users must have 
				# another authentication method available .