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View Diary: Tips On How To Blog Anonymously And Safely (276 comments)

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  •  If this is tied to the ethernet/hardware address (0+ / 0-)

    then a new ethernet card should screw it up, am I right?

    There's also MAC address spoofing.

    You may not be able to change the world, but at least you can embarrass the guilty.
    - Jessica Mitford

    by Swampfoot on Thu Jun 08, 2006 at 11:12:13 AM PDT

    [ Parent ]

    •  Actually no (1+ / 0-)
      Recommended by:

      This is not anything you have control over. Your Internet Service Provider assigns this.

      Some ISPs will just use your current IP address as part of this ID. Your reverse DNS would then look something like (where the 1's would represent your IP address).  This is good, because as you connect and disconnect from the internet the IP portion of the ID would change, making it difficult to trace you for any length of time.

      Unfortunately many ISPs assign a sort of account ID that always stays with you no matter what your IP is. In that case your reverse DNS would look something like  This is bad because it uniquely identifies you for as long as you have an account with that ISP. It also can be used to identify where you are geographically (what city or town you are in). In addition, this information can be used to try and track what web sites you have visited.

      Normally this is no big deal. But if someone wants to maliciously target you and find out your geographic location or track your surfing habits, this is yet another tool they could use.

      •  The fixed DNS entry method (1+ / 0-)
        Recommended by:

        is harder to implement, and the ISP probably thinks of it as a feature, since it would allow customers to run a server off the fixed domain name (although it would be even nicer if the customer got to choose the name). To do the same thing with an ever-changing name requires going through a domain name aliasing service.

        Greg Shenaut

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