>How do I chase down an IP address that was reported by Logcheck to FTP in?
>If have their IP and I want to see where it originated from so I know if it
>is one of my users or a hacker?
>

$ whois [EMAIL PROTECTED]
[whois.arin.net]
Telstra (NET-TELECOMAU4)
    Network Development and
    Construction Branch  32 Pirie Street  Adelaide
    South, 5000
    AU

    Netname: TELECOMAU4
    Netblock: 144.134.0.0 - 144.134.255.255

    Coordinator:
       Telstra  (HM100-ORG-ARIN)  [EMAIL PROTECTED]
       +61 3 9253 8600   Fax- +61 392538701

    Domain System inverse mapping provided by:

    SY-DNS01.TMNS.NET.AU         139.134.2.2
    SY-DNS02.TMNS.NET.AU         139.134.2.18

    Record last updated on 29-Nov-2000.
    Database last updated on 18-Jun-2001 23:08:46 EDT.

The ARIN Registration Services Host contains ONLY Internet
Network Information: Networks, ASN's, and related POC's.
Please use the whois server at rs.internic.net for DOMAIN related
Information and whois.nic.mil for NIPRNET Information.
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