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Hidding a computer,

Suppose you had this configuration.
Server A : 192.168.0.1
Client B : 192.168.0.2
Client C : 192.168.0.3
Anonymous Computer : 192.168.0.4

I set the firewall in anonymous computer to block all the connection that coming in and out to the server.
1) Do you think this can separate the anonymous computer being known by all computers in the network?

2) Suppose you modify the firewall setting in "Anonymous computer" by opening some connection to Client B and Client C only, by doing this do you think the server know that Anonymous computer exists in the network?

What happened if I add another computer called Client D and set the IP address to 192.168.0.4 (same as anonymous computer) I believe that the Server A will doing fine because it won't know anonymous computer or other 192.168.0.4 exists in the network, but how client B seen the conflict between IP?
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kecoak
Asked:
kecoak
2 Solutions
 
Keith AlabasterCommented:
Can you explain the rationale please? I'm not sure if I feel comfortable with this question.

Thanks
Keith
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jabiiiCommented:
I'm with keith, we can not and will not help with anything that is illegal.

Provide us more info and we'll see if we can help.
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lrmooreCommented:
1. Your computer is connected to the Network
2. Your computer has a network card
3. Your network card has a unique MAC address and IP address
4. You cannot hide on the local network
5. Any system administrator worth his job will be able to find you no matter how many firewall rules you put up..
6. The server can be running any number of applications that actively scan the landscape for systems trying to hide in the weeds.
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lrmooreCommented:
> add another computer called Client D and set the IP address to 192.168.0.4 (same as anonymous computer)
You cannot have two systems with the same IP address on the LAN. If they are both running Windows, one of them will be shut down automatically as soon as it sees the other one.
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kecoakAuthor Commented:
>5. Any system administrator worth his job will be able to find you no matter how many firewall rules you put up..
>6. The server can be running any number of applications that actively scan the landscape for systems trying to hide in >the weeds.

but how can you identify for a host if they do not reply your "ping" or ICMP?
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jabiiiCommented:
one reason is arp and network equipment.
firewall logs, etc
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