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Name and Shame Spam Senders With OpenBSD

Peter N. M. Hansteen writes "Once you've identified spam senders, OpenBSD provides all the tools you need to take one step further: exporting their addresses and publishing the evidence. You can even trap them yourself using known bad addresses. It's easy, fun and good netizenship."

26 of 166 comments (clear)

  1. "netizenship" by Anonymous Coward · · Score: 5, Funny

    ...NO!

  2. Hmmm? by BCW2 · · Score: 4, Interesting

    Wouldn't it be more fun to go to their house and either serve them with a civil suit for a $Million+ or just beat their computer into a cube with a sledge hammer?

    --
    Professional Politicians are not the solution, they ARE the problem.
    1. Re:Hmmm? by osgeek · · Score: 3, Funny

      If your interpretation is so loose the the First Amendment gives a spammer the right to spam, then by that same logic the Second Amendment gives me the right to shoot them in the face.

    2. Re:Hmmm? by rts008 · · Score: 3, Funny

      Well, I don't know about that second amendment applying here.

      But, If you shoot them in the face with style and good form, that should still be covered by the first for artistic expression, no? Just put a blank canvas behind them to be sure.

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      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
  3. the known bad addresses part seems dangerous by Trepidity · · Score: 5, Interesting

    I agree the vast majority of email sent to "known bad" addresses will be sent by spambots, and that'll probably be the exclusive source for never-published addresses. But in the case where they publish these known-bad addresses on a page that they hope spambots will index, it seems blacklisting based on them is vulnerable to abuse. If I want to get some server blacklisted, and I have any sort of access to send mail from it, I can just send mail to the known-bad addresses. For example, good way for mischievous students to cause mayhem by getting their university's mail servers blacklisted.

  4. netizenship? by thermian · · Score: 4, Funny

    Sorry, I'd never claim citizenship on the internet, after all, who'd want to live in a place that was almost entierly composed of porn?

    Oh wait...

    --
    A learning experience is one of those things that say, 'You know that thing you just did? Don't do that.' - D. Adams
  5. Not Really by IsMyNameTaken · · Score: 5, Interesting

    I think someone tried the latter approach already and it didn't end up helping her much

    --
    while(1){sig.get()}
    1. Re:Not Really by Ethanol-fueled · · Score: 3, Insightful
      Are you kidding? She got to beat the shit out of a Comcast office while scaring away everybody inside!

      Shaw received a three-month suspended sentence for disorderly conduct, a $345 fine in restitution and a year-long restraining order barring her from the Comcast office.

      I assure you that if I could get away with that kind of punishment I'd do the same thing! Only I'd use a bat instead.

  6. Form response by carou · · Score: 5, Funny

    Your post advocates a

    ( ) technical ( ) legislative ( ) market-based (X) vigilante

    approach to fighting spam. Your idea will not work. Here is why it won't work. (One or more of the following may apply to your particular idea, and it may have other flaws which used to vary from state to state before a bad federal law was passed.)

    ( ) Spammers can easily use it to harvest email addresses
    ( ) Mailing lists and other legitimate email uses would be affected
    (X) No one will be able to find the guy or collect the money
    ( ) It is defenseless against brute force attacks
    ( ) It will stop spam for two weeks and then we'll be stuck with it
    ( ) Users of email will not put up with it
    ( ) Microsoft will not put up with it
    ( ) The police will not put up with it
    ( ) Requires too much cooperation from spammers
    (X) Requires immediate total cooperation from everybody at once
    ( ) Many email users cannot afford to lose business or alienate potential employers
    (X) Spammers don't care about invalid addresses in their lists
    (X) Anyone could anonymously destroy anyone else's career or business

    Specifically, your plan fails to account for

    ( ) Laws expressly prohibiting it
    (X) Lack of centrally controlling authority for email
    (X) Open relays in foreign countries
    ( ) Ease of searching tiny alphanumeric address space of all email addresses
    (X) Asshats
    (X) Jurisdictional problems
    ( ) Unpopularity of weird new taxes
    ( ) Public reluctance to accept weird new forms of money
    ( ) Huge existing software investment in SMTP
    ( ) Susceptibility of protocols other than SMTP to attack
    ( ) Willingness of users to install OS patches received by email
    (X) Armies of worm riddled broadband-connected Windows boxes
    ( ) Eternal arms race involved in all filtering approaches
    ( ) Extreme profitability of spam
    (X) Joe jobs and/or identity theft
    ( ) Technically illiterate politicians
    ( ) Extreme stupidity on the part of people who do business with spammers
    (X) Dishonesty on the part of spammers themselves
    (X) Bandwidth costs that are unaffected by client filtering
    ( ) Outlook

    and the following philosophical objections may also apply:

    (X) Ideas similar to yours are easy to come up with, yet none have ever
    been shown practical
    ( ) Any scheme based on opt-out is unacceptable
    ( ) SMTP headers should not be the subject of legislation
    ( ) Blacklists suck
    ( ) Whitelists suck
    ( ) We should be able to talk about Viagra without being censored
    ( ) Countermeasures should not involve wire fraud or credit card fraud
    ( ) Countermeasures should not involve sabotage of public networks
    ( ) Countermeasures must work if phased in gradually
    ( ) Sending email should be free
    (X) Why should we have to trust you and your servers?
    ( ) Incompatiblity with open source or open source licenses
    (X) Feel-good measures do nothing to solve the problem
    ( ) Temporary/one-time email addresses are cumbersome
    ( ) I don't want the government reading my email
    ( ) Killing them that way is not slow and painful enough

    Furthermore, this is what I think about you:

    ( ) Sorry dude, but I don't think it would work.
    (X) This is a stupid idea, and you're a stupid person for suggesting it.
    ( ) Nice try, assh0le! I'm going to find out where you live and burn your
    house down!

    1. Re:Form response by SSpade · · Score: 5, Funny

      Summarhy for timmarhy: x x x xx xx x x xx x x x x

    2. Re:Form response by Jurily · · Score: 4, Insightful

      Whoosh.

      That form is older than I am, and it still works perfectly.

    3. Re:Form response by pyrrhonist · · Score: 5, Funny

      Dear Slashdot poster,

      We're sorry to hear that you do not approve of the Universal Crackpot Spam Solution Rebuttal Form. As you are no doubt aware, per Slashdot rules this form must be posted in all articles pertaining to a spam solution. This form was carefully crafted by leading experts in their field, and has been serving the community well for almost a decade.

      Your opinion is important to us, but please be advised that we cannot answer all inquiries or complaints personally. If you have questions concerning the Universal Crackpot Spam Solution Rebuttal Form or its use, please feel free to pipe your inquires to /dev/null. All inquiries will be processed in the order in which they are received.

      Sincerely,
      The Slashdot Community

      --
      Show me on the doll where his noodly appendage touched you.
    4. Re:Form response by Dogtanian · · Score: 4, Insightful

      mark poster as redundant [..] you must work in some kind of public service office pushing paper to think a form is a good way to express an opinion.

      On the contrary. The fact that someone's argument can be criticised and/or refuted via such standardised means (*) shows that it fails in one or more now well-defined areas that previous "solutions" have exhibited and should have been considered this time round. And/or that this is merely an inadvertant repackaging of an older idea.

      The slightly tongue-in-cheek form makes the point well, and far from being longwinded is shorthand compared to having a tedious and pointless rehash of previous discussions.

      (*) As another poster mentioned, this "form" has been around for ages.

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      "Slashdot - News and Chat Sites Deviant". (Click "homepage" link above for details).
    5. Re:Form response by ivoras · · Score: 3, Insightful

      As Bill Gates and others have noticed previously, a very obvious solution to the whole spam and e-mail viruses problem would involve removing just one single line from this form:

      ( ) Sending email should be free

      Though it is next to atrocious to admit for anyone who's using e-mail now, setting a $$$ cost to each message sent is probably the only way both first-level spammers and owners of infected machines would be forced to go off-line. This doesn't necessarily mean establishing a central authority - ISPs could simply analyze sent traffic.

      But a "solution" like that will dramatically change the nature of Internet. It's really tough come up with a working solution that's not worse than the problem.

      --
      -- Sig down
    6. Re:Form response by Tubal-Cain · · Score: 5, Insightful

      As Bill Gates and others have noticed previously, a very obvious solution to the whole spam and e-mail viruses problem would involve removing just one single line from this form:

      ( ) Sending email should be free

      (x) Users of email will not put up with it
      (x) Requires immediate total cooperation from everybody at once
      (x) Lack of centrally controlling authority for email
      (x) Open relays in foreign countries
      (x) Unpopularity of weird new taxes
      (x) Armies of worm riddled broadband-connected Windows boxes
      (x) Extreme profitability of spam
      (x) Joe jobs and/or identity theft
      (x) Countermeasures must work if phased in gradually

      (x) Sorry dude, but I don't think it would work.

    7. Re:Form response by thePowerOfGrayskull · · Score: 4, Interesting

      Perhaps it drew some inspiration from this one.

  7. Easy, fun... by subreality · · Score: 5, Insightful

    They can call it easy, fun, and good netizenship... But I say they're just putting a friendly face on vigilanteism.

    From a technical perspective this isn't that different from other collaborative filtering systems (though since the listing criteria is based on secondary sources, it's going to be susceptible to confirmation bias and other sampling errors, so this isn't likely to be a good one). I take big issue with the naming, though: Other collaborative filters say that "This machine is listed because it met these criteria", which you then make your own decisions on.

    It crosses a line when you're saying they should be "shamed", especially when you're not taking extensive precautions to make sure you're not listing innocents.

  8. Really? by Darkness404 · · Score: 4, Informative

    Really is spam that big of a problem anymore? Ever since I've switched to Gmail all my spam has been blocked by it or blocked by a simple mail filter. Now then again, I don't give my real e-mail address to everyone and their brother, but individual spam blockers have come a long, long ways.

    --
    Taxation is legalized theft, no more, no less.
    1. Re:Really? by John+Hasler · · Score: 4, Insightful

      > Really is spam that big of a problem anymore?

      For people who actually run email servers the fact that 99% of their traffic is spam is a problem, yes.

      --
      Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
    2. Re:Really? by Brandybuck · · Score: 5, Insightful

      Really is pollution that big of a problem anymore? Ever since I've switched to BigAssFilter air conditioning system, all of the pollution has been filtered out of my home.

      --
      Don't blame me, I didn't vote for either of them!
  9. Shame!? by Dahamma · · Score: 5, Insightful

    What's the point of trying to *shame* a spammer? You can't shame someone who has no shame.

    Naming them is pointless, too. "Oh, hey, I found out it's a guy named Viktor in the Ukraine sending me all this spam!" Now what?

  10. that I think he's avoiding by Trepidity · · Score: 4, Informative

    I could be misreading, but I think he's using the IP of the server that actually connects to his server and attempts to deliver mail, not the IP reported in the mail headers.

  11. Re:Missing a few addresses by Anonymous Coward · · Score: 4, Funny

    You forgot a couple of his aliases:

    dmcbride@sco.com
    bgates@gatesfoundation.org
    steveb@microsoft.com
    jackpeace@comcast.net

  12. Asking for trouble by EdIII · · Score: 3, Insightful

    Most of the article is about grey listing. That's nearly suicidal for most mail server administrators. When I tried it, it did make a difference.

    Of course, while it is working..........

    Executive A, "This guy just sent me a contract 60 seconds ago. I keep clicking the damn send/receive button but it's not coming in. Are you a fucking moron or something? What the HELL is going on?!!"

    Either paranoia, or people trying to send email with attachments to each other while *on the phone*, makes grey listing a huge hassle for the administrator. You just can't force a delay in email of 10 or 20 minutes for most users. The pitch forks and torches come out.

    Once you do use it, you cannot control the duration of the delay either. The other mail server has its own settings on how often it retries mail as well. So yours is set to 3, theirs is set to 20. The delay is 20.

    I also find it hard to believe that the spammers have not figured this out. It's not like they are stupid. They try very hard to deliver their payloads. It would be trivial to update their software to retry messages that receive those codes.

    Oh, and if you have high volume get ready to drain some resources. Keeping track of thousands and thousands of IP addresses in a grey list to determine which one can communicate at what point is resource intensive.

  13. Re:I go with the unpopular GP comment by techno-vampire · · Score: 4, Insightful
    what in the earth could pass clean that form?

    Currently, nothing. If somebody ever does come up with something that will, it will spell the end of spam. I'm not holding my breath.

    --
    Good, inexpensive web hosting
  14. But... by Sigvatr · · Score: 3, Insightful

    ... is it good Nietzscheanship?