Welcome to ImpSec.

Cockroach Central is undergoing renovation. Your visit has been noted and will be subject to investigation.


You may be looking for these resources:

John Hardin's home page

The archive of old JS-Kit comments from The Smallest Minority

The Procmail Email Sanitizer home page

The Linux VPN Masquerade home page

Electronic books and paper books by Lois McMaster Bujold

If you get 403 errors accessing this website, try again in a minute. I apologize for these errors and I'm trying to resolve the problem in my content sync scripting that is causing them.


tarpit.impsec.org - The impsec.org domain SMTP tarpit policy - if your MTA is wedged with dozens of processes trying to send spam to impsec.org email addresses, then take all impsec.org email addresses off of your spam mailing lists, or clean up your open relay. It's that simple.

Also, referrer spammers (people who visit this website just to advertise their website URL into the webserver logs) may be tarpitted if they become too aggressive, and PHP scanners will be automatically tarpitted.

Behave and you won't get stuck.