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Domain: jtan.com

Stories and comments across the archive that link to jtan.com.

Comments · 9

  1. Yet another alternative. by kd3bj · · Score: 5, Informative · on Web-based Anonymizer Discontinued

    There are many different proxies available at JTAN.

  2. http://www.jtan.com/jtanoss/cdboot/ by twoblink · · Score: 1 · on Live-CD Firewall Solutions?

    http://www.jtan.com/jtanoss/cdboot/

    This is probably the answer you are looking for.

    IPTABLES is shit, really, if you want legible firewall rules, built on a secure OS, try Ipfilter/PF on Open/Net BSD.

  3. Another box! by Noksagt · · Score: 1 · on What is the Best Firewall for Servers?

    Depending on the box, I like putting a cheap router (those intended for DSL/Cable are fine for me since my backwards-university is still on 10Mbps & is talking about eventually going to 100MBps) or another box in front of the system. If it is another box, it is nice to make it a linux or BSD box which is configured to ONLY be a firewall. I like OpenBSD. You can use a LiveCD or install it outright. Lots of tutorials out there.

    If you want only a software firewall for windows, I like Sygate. It does everything I want EXCEPT support fast-user switching.

  4. Re:OpenBSD's spamd seems like a good idea by kd3bj · · Score: 2, Interesting · on Spamfighting Since the Death of MakeLoveNotSpam?
    At jtan.com we have used spamd for about a year. We use it with an dynamic honeypot system to automatically identify and tarpit spammers.(We have publised this spamtrapd system as OSS).

    All spamd/pf does, for those of you that don't know, is to stall the spam sender by sending replies v-e-r-y s-l-o-w-l-y using a daemon that runs alongside sendmail. The OpenBSD pf packet filter is used to redirect data away from the real SMTP daemon and to spamd. Some people call spamd a tarpit.

    Typically we have about 200-300 spammers in our tarpit at a given time, with a mean time of stalling at a few minutes. At the end of the stalling, we send a 550 rather than a 450 -- a 450 temp fail IMHO is irresponsible and causes more problems than any spammer-punishing benefit it might have.

    I'm not sure tarpits are punishing anyway. Rather tarpits reduce the effectiveness of the spamming by tying up the senders in the tarpit rather than sending more junk to people.

    I assume that spammers are wise to tarpits. We see a large number of disconnects within a few seconds. Of course, lots of folks program a HELO or multi-recipient delay in their MTA. That is a complementary technique that helps tarpits be even more effective. The longer it takes for spammers to tell that they are tarpitted, the less spam they can send.

  5. Slashdot - nuke replacement by Psionicist · · Score: 1 · on Online Replacements for Desktop Apps?

    Slashdot - online replacment for the old fashion nuke programs.

  6. Re:the bathroom server by Anonymous Coward · · Score: 0 · on Slashback: Equivalence, Toilets, Hundredth

    Nah, they pay off the loans by making elephantic audio equipment.

  7. Its all about Mjolnir, the subwoofer. by rawg · · Score: 1 · on Slashback: Equivalence, Toilets, Hundredth

    Mjolnir

    There is nothing else more impressive than this.

  8. Mjolnir by bolind · · Score: 1 · on MIT's Bathroom Server

    here is a page on Mjolnir, the VVLS (Very Very Large Subwoofer)

    Bo

  9. Linux Infrared Remote Control by cerulean · · Score: 3 · on Laptop IR Port As A Learning Remote?
    I remebered that a friend of mine had ported this thing to Windows:

    LIRC- Linux Infrared Remote Control
    "LIRC is a package that allows you to decode and send infra-red signals of many (but not all) commonly used remote controls. "

    According to the FAQ, there is a driver for laptop IrDA ports in the CVS for the project.