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No idea what you are asking here. Can you re-phrase? I can only guess.

If they are all Macs, they should by default be advertising their names using Zeroconf, so they should all be accessible in the .local domain.

If you are trying to actually access web servers on the machines (which seems the case from your http:// examples) then you actually need to be running a web server on each machine.

If you want to access them for file sharing, make sure you've turned file sharing on on each computer. They should just show up in Finder.
 
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