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From: "Hilton Travis" <QuarkAudioVisual at email.com>
To: <general at lists.humbug.org.au>
Subject: RE: [H-GEN] Multiple machines hanging of telstra ADSL
Date: Tue, 2 Oct 2001 08:14:46 +1000
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Hi David,

> -----Original Message-----
> From: lists.humbug.org.au Mailing List Manager 
> [mailto:mdlishum at zerlargal.humbug.org.au] On Behalf Of David Findlay
> 
> I'm setting up a new internet service provider running on 
> Linux stuff, and 
> I'm using a main Linux router machine, but also a backup 
> router. It will be 
> an arrangement where if the primary router gets and kernel 
> oops or overheats, 
> it will send a wake up message to the backup machine(running 
> in wake on LAN 
> mode) to wake it up, before shutting itself down. 
> 
> I've read somewhere that you can plug the Alcatel speed touch 
> ADSL into a 
> hub, and have multiple machines directly off it. I would need such an 
> arrangement to allow me to have both machines sharing the 
> modem. No two 
> machines would ever use it at once, to achieve the swapover, 
> on the shut down 
> condition the first machine would disconnect from the adsl, 
> then turn on the 
> other machine, which would then start the ADSL. Because the 
> backup would be 
> running in ACPI power off mode, it could come up in a matter 
> of seconds and 
> connect. I know you can do this in Windows, but I just want 
> to know if anyone 
> has had any experience doing this in Linux? And can I send 
> the signal to the 
> other machine via the same hub or would I need a different 
> link to send that 
> signal.
> 
> I'll run some software on the backup machine that will 
> automatically mirror 
> all changes from the primary server around 2am every morning. 
> It will also 
> have software to make it instantly take over all IP addresses 
> and DNS names 
> of the other machine when required. I'm currently a trainee 
> at this company, 
> but it's so cool to get to work on all this stuff, and all 
> this cool gear. 
> :-) Thanks,
> 
> David

First, are you sure this is cool with a Tel$tra ADSL connection - I
thought there was a no "sub-leasing" clause in it.

It is well worth checking this first, as this may be a major contributor
to this whole project!  :-)

Regards,
Hilton


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