information form the firewalls.

Hi can anyone help me please.
 
Information concerning the Mail service name and its version, SMTP,
Reachable Host list, Traceroute information, target network information,
ISP information, Open TCP list, firewall detection are listed through
remote system. What should be done on the router or firewall to prevent
such information to be available from remote system on the Internet?
 
Thanks to all who can help me.
 
Gawtam Raiy Kallychurn
IT Security Engineer
Financial Intelligence Unit - Mauritius
3rd Floor, Travel House
Cnr Royal and Sir William Newton Streets
Port Louis
Mauritius
------------------------------------------------------------------------
---------------- 
Internet Email Confidentiality Footer 
Priviledged / confidential information may be contained in this message.
If you are not the addressee indicated in this message (or responsible
for delivery of the message to such person), you may not copy or deliver
this message to anyone. In such case, you should destroy this message,
and notify the sender immediately. If you or your employer does not
consent to Internet email messages of this kind, please advise the
sender immediately. Opinions, conclusions and other information
expressed in this message are not given or endorsed, unless otherwise
indicated by an authorised means independent of this message.