[oclug] The power of OSS/GNU/Linux

Sandy Mac Donell sandymac1 at rogers.com
Mon Oct 7 23:19:58 EDT 2002


Thanks Shad, I am going to give it a try.

Sandy
----- Original Message -----
From: "Shad Young" <shad.young at sympatico.ca>
To: <oclug at lists.oclug.on.ca>
Sent: Monday, October 07, 2002 9:52 PM
Subject: Re: [oclug] The power of OSS/GNU/Linux


> I am not talking system security so much, more about email relays and
such.
> System security is why I chose Qmail, as well as ease of setup. At that
time
> Sendmail still had a number of huge security holes that have long since
been
> plugged. But sendmail is a bit of a beast to configure for the
uninitiated.
>
> Using BIND (I did not know Qmail came with its own dns server these days)
in
> conjunction with Webmin should get you up and working quickly. You can
have
> fun and play around a bit, but make sure you disable them when you are
done
> playing at night until you are sure you have the open relays shut and BIND
> security patched.
>
> If not, I promise you, you will be turned into a spam server in less than
24
> hours. Rootkit to follow. Email servers are like cracker attractors.
>
> Shad
> _______________________________________________________________________
>
> Have an article, story or essay you want to publish online? We need
content.
> Ascendant: food for the thinking mind.  http://www3.sympatico.ca/sberaud
> _______________________________________________________________________
> ----- Original Message -----
> From: "Sandy Mac Donell" <sandymac1 at rogers.com>
> To: <oclug at lists.oclug.on.ca>
> Sent: Monday, October 07, 2002 9:09 PM
> Subject: Re: [oclug] The power of OSS/GNU/Linux
>
>
> > Shad
> >
> > Did you setup Qmail with BIND or the DNS that comes with Qmail?
> >
> > Sounds like you ran into some security issues.
> > From what I read Qmail has no security holes as compared to the others.
> >
> > Sandy
> >
> > ----- Original Message -----
> > From: "Shad Young" <shad.young at sympatico.ca>
> > To: <oclug at lists.oclug.on.ca>
> > Sent: Monday, October 07, 2002 7:27 PM
> > Subject: Re: [oclug] The power of OSS/GNU/Linux
> >
> >
> > > About half an hour... But
> > >
> > > It took me about two years to learn enough about Linux to be able to
> > install
> > > it *chuckle*. Actually the docs for it are very good. If you are
having
> > > trouble understanding them it may be due to the use of jargon like
> ad-arpa
> > > etc. The way I learned was to first get a clear understanding of
> domains,
> > > and domain name servers and their configuration. I have never
attempted
> to
> > > setup Qmail without running my own DNS services.
> > >
> > > Understanding Domains then related clearly back to mail, as I now
> > understood
> > > what routing, and virtual meant. Now... That being said... I learned
> about
> > > DNS when I began to configure Apache for the first time. Before making
a
> > > server available to the world, I first built a local network out of
> > > loop-back devices and the basic Caching Name Server from RH, then
> > configured
> > > Apache to use this. Once I understood the local domain, I then desired
> the
> > > ability to run multiple domains on the same host. This necessitated
the
> > use
> > > of BIND and properly configured zone files.
> > >
> > > After all that and about two years I finally felt ready to handle a
mail
> > > configuration. It took months of reading and asking questions about
this
> > and
> > > that here on the list before I got it working as I needed.
> > >
> > > So my friend, I would get a coffee and comfortable chair and get ready
> for
> > > long hours of reading, and then post, post, post your questions here
(or
> > on
> > > the Qmail mailing list) and we will attempt to help you out as best we
> > can.
> > > :) . I am sorry if this sounds like a RTFM blow off, but with mail,
> there
> > > are too many issues like security, spam and open relays to be done
> > > incorrectly. You could find yourself in serious trouble if it gets out
> of
> > > control, the least of which is the blacklisting of your domains..
> > >
> > > Cheers
> > > Shad
> > >
_______________________________________________________________________
> > >
> > > Have an article, story or essay you want to publish online? We need
> > content.
> > > Ascendant: food for the thinking mind.
http://www3.sympatico.ca/sberaud
> > >
_______________________________________________________________________
> > > ----- Original Message -----
> > > From: "Sandy Mac Donell" <sandymac1 at rogers.com>
> > > To: <oclug at lists.oclug.on.ca>
> > > Sent: Monday, October 07, 2002 7:02 PM
> > > Subject: Re: [oclug] The power of OSS/GNU/Linux
> > >
> > >
> > > > Hello Shad,
> > > >
> > > > How long did it take you to setup Qmail?
> > > >
> > > > Sandy
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Shad Young" <shad.young at sympatico.ca>
> > > > To: <oclug at lists.oclug.on.ca>
> > > > Sent: Monday, October 07, 2002 6:51 PM
> > > > Subject: [oclug] The power of OSS/GNU/Linux
> > > >
> > > >
> > > > > I had an opportunity to engage in a debate with a fellow about the
> > power
> > > > of
> > > > > Linux the other day. After I had begun to outline the virtues of
the
> > > Linux
> > > > > environment I began to recall the enormity of what one machine
could
> > do.
> > > > >
> > > > > The machine:
> > > > > unbelievably a K6 233 with 64 MB EDO RAM
> > > > > 7 Gig Quantum HDD
> > > > > 2 realtek 10baseT
> > > > > Cheapo hub.
> > > > > no video card (except during setup of X)
> > > > > no keyboard
> > > > > no mouse
> > > > >
> > > > > Services:
> > > > > Red Hat 6.2 with Kernel 2.2.6
> > > > > Fully configured Apache 1.3/CGI/Perl/PHP with a dozen websites
> > averaging
> > > > > 10,000 hits a month
> > > > > BIND running 10 or so domains.
> > > > > Qmail with 30 accounts
> > > > > MySQL with webmin for a web forum
> > > > > exported X for remote administration (sorry I am a gui person)
> > > > > KDE 1
> > > > > full development suite
> > > > > six online games in active development
> > > > > 2 on-line games operational with 10 to thirty players at any given
> > time
> > > > > 24 active accounts for developers and programmers with 2 or three
> > logged
> > > > on
> > > > > at any given time.
> > > > >
> > > > > all that and my users were constantly amazed at its speed.
> Recompiling
> > > > their
> > > > > game modules usually took minutes; and this from guys who
developed
> in
> > > > > windows on 1 gig Athlons at home. (game runners would complain
about
> > the
> > > > lag
> > > > > when recompiling a kernel, but that's about it).
> > > > >
> > > > > I was going for an OCLUG record uptime and was on day 303, when
our
> > > > favorite
> > > > > Catholic evangelist logged on and used Netscape (I forgot to
> uninstall
> > > the
> > > > > stock version) which had an enormous memory leak. Nothing I tried
> > would
> > > > get
> > > > > this machine to respond as it filled up the memory and 512 megs of
> > swap
> > > > > space and began to loop. My girlfriend thought I had hurt myself
> when
> > I
> > > > > screamed in despair after I realized a hard shutdown was required.
> It
> > > took
> > > > > literally an hour to respond to one keystroke as it swapped and
> > swapped
> > > > and
> > > > > swapped ROFL. I could have killed you Francis ;).
> > > > >
> > > > > I would also like to thank Olaf Baumann and obone.ca for providing
> me
> > > with
> > > > a
> > > > > development platform and host for my current project. It is giving
> me
> > an
> > > > > opportunity to learn about Debian in the process.
> > > > >
> > > > >
> > > > > Cheers
> > > > > Shad
> > > > >
> > _______________________________________________________________________
> > > > >
> > > > > Have an article, story or essay you want to publish online? We
need
> > > > content.
> > > > > Ascendant: food for the thinking mind.
> > http://www3.sympatico.ca/sberaud
> > > > >
> > _______________________________________________________________________
> > > > >
> > > > > _______________________________________________
> > > > > oclug mailing list
> > > > > oclug at lists.oclug.on.ca
> > > > > http://www.oclug.on.ca/mailman/listinfo/oclug
> > > >
> > > > _______________________________________________
> > > > oclug mailing list
> > > > oclug at lists.oclug.on.ca
> > > > http://www.oclug.on.ca/mailman/listinfo/oclug
> > > >
> > >
> > > _______________________________________________
> > > oclug mailing list
> > > oclug at lists.oclug.on.ca
> > > http://www.oclug.on.ca/mailman/listinfo/oclug
> >
> > _______________________________________________
> > oclug mailing list
> > oclug at lists.oclug.on.ca
> > http://www.oclug.on.ca/mailman/listinfo/oclug
>
> _______________________________________________
> oclug mailing list
> oclug at lists.oclug.on.ca
> http://www.oclug.on.ca/mailman/listinfo/oclug




More information about the OCLUG mailing list