Your employer's security policies state that all externally facing servers should only be accessible via ports that are absolutely required. Generally your company only has web servers that are accessible from outside the companies network. A recent security review showed that it was possible to ping several of these web servers. What protocol should be disabled using a firewall to ensure pings do not successfully contact the servers?
Network diagnostic tools like ping and tracert use the Internet Control Message Protocol (ICMP) to function. Using a firewall to block external systems from using this protocol to contact internal solutions will ensure ping cannot be used against the servers discussed in the question.
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