Mailing List Archive

Support open source code!


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: tlug: Re: Test messages: Where's good?



On Tue, 26 Jan 1999, Stephen J. Turnbull wrote:

> (1) People behind firewalls aren't going to be using a smarthost?
> Insane.  There is absolutely no excuse for allowing direct outgoing
> mail.  Fire the firewall admin.

Uh, I could see allowing outbound SMTP in an IP masquerading setup.

> IP spoofing is an awful lot of effort to go to for so little effect.

Depends on what's being returned by the SMTP checker.  Wouldn't be too
hard to imagine a neat DoS attack using this bit.

-- Chris

-------------------------------------------------------------------
Next Technical Meeting: February 13 (Sat), 12:30 place: Temple Univ.
** presentation: XEmacs, by Steven Baur and Martin Buchholz
Next Nomikai: March 19 (Fri), 19:30   Tengu TokyoEkiMae 03-3275-3691
-------------------------------------------------------------------
more info: http://tlug.linux.or.jp                     Sponsor: PHT


Home | Main Index | Thread Index

Home Page Mailing List Linux and Japan TLUG Members Links