Great Circle Associates Firewalls
(January 1997)
 

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Subject: Re: Secure firewall with only Linux-Kernel filtering possible?
From: Darren Reed <avalon @ coombs . anu . edu . au>
Date: Tue, 14 Jan 1997 20:32:06 +1100 (EDT)
To: adam @ homeport . org (Adam Shostack)
Cc: Ryan . Russell @ sybase . com, rammeri @ winternet . co . at, firewalls @ GreatCircle . COM
In-reply-to: <199701140202 . VAA16636 @ homeport . org> from "Adam Shostack" at Jan 13, 97 09:02:10 pm

I don't want to throw cold water of the qmail authors' enthusiasm, but
a reality check on this comparison seems needed.  It is excellent to see
someone is doing this but I can't see sendmail fading out the picture
any time soon.

In some mail from Adam Shostack, sie said:
>
> qmail				sendmail
> -----				--------
> 210k tar.gz			900k tar.gz

how many lines of code ?

the sendmail .tar.gz comes with a _lot_ of other things such as scripts
for easy building of sendmail.cf, sample sendmail.cf's, etc.

> one setuid (qmail) 		one (root) setuid program

one setuid program is one too many.

> designed for security		designed to handle complex mail,
> 				 like uucp/smtp/chaos

I'm sure others *must* have asked this question: how do you use sendmail
in conjunction with qmail so you can handle all the various complexities
which are found in today's Internet ?

> many small confusing		one famously painful config file
>  config files

"famously painful" - it is _much_ better than it was.  Personally, I would
prefer to have one config file (the FWTK has one - netperm-table - but many
small programs) rather than try configure many things to interact correctly.

Why doesn't someone write a sendmail.cf -> qmail configuration converter
and then compare ?

> release of the month club	bug of the month club
>  (soon to hit v1.0)

bug of the month/release of the month - which do you go for ?
They're both bad (but could be worse).  It does mean they both
receive attention which is good.

Not being v1.0 means, to me, it is a young product that has a long way to
go before it matures.

>  (no security holes)

Correction: no known security holes (yet).

Darren


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