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by rid 4192 days ago
The whois utility [1] is available on most Linux distros and *nix flavours, it will give you information such as:

- Using an IP, netrange and information regarding the network owner (contact and abuse info). Gathered from the Regional Internet Registry (RIR) databases.

- Using a domain, registrant info --if public, abuse details etc..

[1] http://linux.die.net/man/1/whois