Great Circle Associates Firewalls
(September 1993)
 

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Subject: Re: Access control for SMTP?
From: Brent Chapman <brent @ GreatCircle . COM>
Date: Thu, 23 Sep 1993 10:09:44 -0700
To: mjr @ TIS . COM
Cc: firewalls @ GreatCircle . COM
In-reply-to: Your message of Thu, 23 Sep 93 12:59:02 -0400

mjr @
 TIS .
 COM writes:

# In reference to how we do FTP:
# >But this presumes that you're doing ONLY anonymous FTP, right?  Or do
# >you do something like create a "holding" directory for each user
# >somewhere under the chroot filesystem, that they own and can use to
# >send and receive files via non-anonymous FTP?
# 
# 	Nope. If someone wants to send and recieve files they can
# telnet in and push or pull them from a non-chrooted login shell.
# A little inconvenient, sure. Life's tough sometimes.

Yeah, but what if both of the machines involved are running ftpd in
this fashion?  Then what do you do?

Put it in the publicly writable "incoming" directory in the anonymous
FTP area?  Most sites don't even have one any more because almost
everybody who _did_ have one has had it used by anonymous folks from
the net as a staging area to distribute pirated software and
pornographic images.


-Brent
--
Brent Chapman                                   Great Circle Associates
Brent @
 GreatCircle .
 COM                           1057 West Dana Street
+1 415 962 0841                                 Mountain View, CA  94041


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