Preventing Ping Responses From Hidden Servers

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By default, servers do respond to ICMP requests ('pings'). It is a normal way to check existence of a computer. However, in many a case certain kinds of servers should not be exposed to everyone; thus, there can be cases when system should not response to such inquiries.

The most general means of preventing ICMP response is provided by Windows firewall. To access it, right-click on network connection to modify, then select Properties, Advnaced, Settings. There, in Advanced tab, you can see  'ICMP' section. ICMP is the protocol used to 'ping' sites. By unchecking setting "Allow incoming echo requests" you will effectively prevent ping response.

Note that this method will entirely prevent ping responses from happening. If you wish to have finer means of control, perhaps Personal Firewall or similar solution could be used. Also, server monitoring may also be done without ICMP responses available.

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This page contains a single entry by Konstantin Boyandin published on December 15, 2009 8:21 PM.

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