Dear all,
I'm wondering that, is there any method to add custom ICMP message to
iptables ... e.g say I block Echo Request (ping) through
system-config-firewall, other systems on my network cannot ping my
system ... but on on the system from where I try to ping .. it shows
message like [1]
[1] From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host Prohibited
From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host Prohibited
From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host Prohibited
From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host Prohibited
problem is that anyone can determine that my system is alive and icmp
request is blocked
instead of this I want like this [2]
[2] From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host *Unreachable *
From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host *Unreachable *
From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host *Unreachable *
From xxx.xxx.xxx.xxx icmp_seq=xxx Destination Host *Unreachable
*
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