Comment Re:Single point of failure (Score 1) 127
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- 123456789012345678901234567890123456789012345
- qwertyuiop[]\asdfghjkl;'z
- `1234567890-=qwertyuiop[
I'm thinking they don't do dictionary attacks here...
As a former broadband network architect (Telocity/Directv DSL) my understanding of modern Cable and DSL provider use of the term "modem" is that Modem implies a tunneled link between the CPE (Customer Premise Equipment) and a box at the ISP.
So here at my home using Comcast, we have a CPE Cable Ethernet/Cable COAX proxy that gets a outward facing DHCP IP from a server at the local Comcast ISP. This IP is part of a private non-Internet network. The CPE/Proxy then connects to a server at Comcast's data center using a PPTP tunnel, authenticating (customer-side) using keys stored in the CPE and (server-side) with a database of current active paid customers.
If authentication completes successfully, then the CPE Device links the PPTP tunnel to my local network and to the real internet on the far side of the multi-interface ISP Server.
so it's more like:
_______________{------- PPTP tunnel ------}
PC-- local net -- CPE -- ISP Private net -- ISP Server -- Internet
This is much more like a real telephony modem than a router or network type converting Gateway.
The reason they use this is of course now all they need to do to cut you off is change the ISP Database if you don't pay your bill.
If the real Internet was run out to your house, you could just run your own CPE and get free service until they sent a Tech to unwire your link (or have smarter more expensive hubs that can remotely cut-off links). That's too expensive to be cost effective, so they use the "modem" model to control costs. They usually make you pay for the CPE too so it's really a net gain.
Interestingly, this is why rebooting your CPE "modem" often fixes broken Cable Internet connectivity. It forces it to connect out to a new PPTP server and if the ISP PPTP server being broken/overloaded is the issue, then you have a whole new one and it tends to work better.
No, instead I sniff somebody else's pickles.
Now, if I could just find out why toddlers don't do what they're told, I think we'd solve the final frontier. But let's be real, this is slashdot, not ivillage.
Who needs iVillage. Speaking from recent experience: Toddlers don't do what they're told because either they weren't listening or you weren't telling them something they wanted to do.
The solution is simple and goes something like:
"Billy... Hey Billy...Billy! BILLY! Now eat all the cookies and spill the milk everywhere. Good Boy! That's it!".
Follow that model and you'll have no trouble.
My only problem is figuring out how to reply to this kind of post by hitting the "Parent" button.
I'm sure the design targets memory intensive applications like VMware ESX virtualization hosting servers. (You could also use Solaris Zones or Xen Server)
With 8-16GB of ram statically assigned to each Guest VM (Virtual Machine), 128GB only covers 7 to 15 hosted Servers (less ESX memory overhead)
If you're doing VDI (Virtualized Desktops with Vista), that's only up to 31 VM PCs per blade.
Storage is commonly not an issue/botteneck since a SAN is often used (It works even with VMotion).
Happiness is twin floppies.