[tech] marblefish

[David Adam]

On Sun, 26 Feb 2006, James Andrewartha wrote:
> On Sun, 26 Feb 2006, David Adam wrote:
> > I'm not really certain [tech] is the right list, but perhaps you could
> > elaborate on The ProgSoc Arrangment (sounds like a Robert Ludlum book) for
> > those of us less in the know?
> >
> > As far as I know, it involves free traffic, less spam and world peace.
>
> Pretty much. Over beers at LCA, I was complaining to Anand that we had to
> pay for spam. He offered to host a machine at ProgSoc for us, as they
> don't pay for traffic and have a spare class C they're barely using.

Ah, LCA is a networking event in every sense of the word.

> The plan is to send over marblefish and give it a couple of IPs. One will
> be set as the primary MX for UCC's domains, but all port 25 traffic will
> be tunnelled (exact method to be determined) to mooneye's port 25,
> allowing us to do greylisting on mooneye, and not pay for email since it's
> coming over AARNet.

Do we want the benefits of further SPAM filtering on Asclepius? More to
the point, will our charming comrades in UCS (hi Adrian) get irritated if
we don't go through the central spam filter?

If not, I strongly suggest we don't let [JCF] set up another of his
crackrock SSH-based VPNs (you're killing kittens, James), but perhaps some
sort of encrypted link is a good idea. Otherwise we can do it the easy way
by NATing (say) port 10025 to mooneye:25.

> Another IP will run a local copy of postfix as a
> secondary MX, and will also do greylisting. Ideally we'd want a way to
> reject invalid users on this MX as well. There might also be a third MX
> hosted elsewhere. Failure modes are fairly well covered, and if all else
> fails we can change the DNS back to listing mooneye and asclepius as the MXs.

Are we going to be running these separate IPs as Xen domains, or just as
aliases?

This sounds like a fantastic plan, otherwise, and should cut down our
traffic bills by a fair amount. It'll also be good to establish stronger
links with other similar-minded clubs. (I am about to use the word
syngergy, so I'll stop now).

David Adam
UCC Wheel Thing
zanchey@