Posts with keyword: networking

9 entries

The Cloud Is Not the Internet

Wed Jan 27 09:10:00 2016

Don't confuse the Cloud with the Internet. They're not the same thing and have different properties.
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Tunneling SSH Through Screensharing in OS X

Fri Oct 10 13:05:00 2008

I overhead an exchange between two friends that I thought was interesting. One needed help from the other and asked him to SSH into a machine. The place where the second friend works blocks outgoing port 22, the port SSH lives on. Don't ask me why. The solution? Friend one does a screenshare to friend two who uses the shared machine to SSH. First time I've seen screensharing being used to tunnel SSH.
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WARP your WAN for Performance and Reliability

Mon Sep 1 10:35:00 2008

My review of Fatpipe WARP has appeared in InfoWorld. I've had a Comcast cable Internet connection for years. Last year I got a shiny new fiber connection from Mstar. But rather than uninstall the cable connection, I asked FatPipe Networks if they'd be willing to let me perform an extended test of the company's flagship route clustering product, WARP. WARP is a 4U, rack-mountable network appliance that allows up to three WAN connections to be aggregated without the need for complicated BGP (Border Gateway Protocol) routing configurations. The unit provides traffic load balancing over these connections, allowing both inbound
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Undersea Cables, Connectivity, and the Gap

Tue Feb 19 14:57:00 2008

I'm a fan of Thomas Barnett's gap-core lens for understanding world events. My simple paraphrase goes something like this: states that are part of the core (and that's a lot of them) don't make war on each other, don't sponsor state terrorism, and are, in general, predictable players on the world stage. Those who are not connected economically and culturally to the core are the trouble makers. (Tom, if I got it wrong or simplified it to much, forgive me.) Radical Islam, when viewed through this lens, is an attempt to stall and hopefully stop the integration of Islamic
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Xen and Multiple Networks

Mon Jan 14 10:55:00 2008

Last Friday I asked a question about how to set up a network in Xen with a machine attached between a public and private network, like you might use in a firewall or load balancing situation. I want to be able to mimic real world networking situation in Xen for experimentation and modeling purposes. There were numerous replies and I'm grateful for all the help. In the end, Steve Fulling (he's not as pointy haired as you though) came up with a pretty simple solution. To use virt-install to create a bridged, public machine, you'd do something like this:
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Google's Hardware Initiatives

Tue Jan 8 14:05:00 2008

Here's a couple of very interesting articles about Google's home grown 10Gb Ethernet switches and how it builds it's own servers.
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Information Devices

Mon Jan 29 15:12:00 2007

One of my graduate students, Sam Curren, has an interesting post on hardware widgets. One, WidgetStation looks like the kind of thing you could build a nice special purpose dashboard out of. It's nice enough looking that the CEO or CFO wouldn't mind having on their desk.
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DHCP Wars

Wed Oct 18 18:10:00 2006

Here's a little gem for you: Vonage sends out the Linksys RTP300 analog telephone adapter (ATA) with DHCP enabled by default. That's handy when it's the only router you've got, but when you plug it into your network and it starts fighting with your other DHCP server, life gets interesting.
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Reputation and Wi-Fi

Tue Jun 20 06:02:00 2006

I'm sitting in the Ames Courtroom at Harvard Law School right now waiting for day two of the Berkman identity Mashup to begin. I missed yesterday because I wasn't willing to fly out on Father's Day. My panel in identity brokers will be at 9am. As I got here and opened up my laptop, I signed into the Harvard wi-fi network. They allow temporary guest logins; you have to provide an email and telephone number. I don't know what keeps people from just giving them dummy data. Probably nothing. I was thinking, however, that you could use a reputation
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