Catch up on stories from the past week (and beyond) at the Slashdot story archive


Forgot your password?

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


Comment: Ideal case for an electric vehicle... (Score 1) 330

by tsprig (#46478143) Attached to: What If the Next Presidential Limo Was a Tesla?

I love all the uneducated comments about "it can't work because ... electricity."

There are very large/heavy/fast electric vehicles already. With a vehicle this large and one-off, you could do some pretty cool stuff:

    two (or more?) redundant electric motors for front vs rear drive
    inductive charging (just park next to a transformer somewhere ... haha)
    regenerative breaking for increased range in urban areas
    extreme high efficiency solar cells for maintaining charge/powering internal devices
    gas/diesel backup power plant

Also, with advances in materials, it's possible that armor isn't nearly as heavy for *better* protection.

The real limiting factor will be finding all of the components made exclusively in the US.

Comment: Getting dual stack right in the DC ... (Score 1) 574

by tsprig (#46269731) Attached to: Whatever Happened To the IPv4 Address Crisis?

... is not always straight forward. This is especially so if you are running in a NAT environment and want to deploy IPv6 and do host resolution correctly. Internally, you want to resolve a host as: 2001:DB8::a

Since this node makes connections to the world, we need to resolve it's address for some services to work: 2001:DB8::a

Before IPv6 was enabled on this network, this node would be resolved via a generic NAT IP address.

Now you have an asymmetry in how access to/from occurs which means it can work for some people (internal hosts, IPv6 enabled remote hosts) but not for others (IPv4-only sites.) In general, asymmetry in your security with two different paths to the same host means you are less secure. Unfortunately, IPv6 is more than IPv4:IPv4:IPv4:IPv4 and requires some thought and expertise that many shops just don't have.

Comment: You're doing it wrong... (Score 0) 734

by tsprig (#46048835) Attached to: Will Electric Cars and Solar Power Make Gasoline and Utilities Obsolete?

What about other disruptive technologies extrapolated into the future? With self-driving vehicles, there will be less of a chance that people own their own vehicle and just tap on their smart phone (or whatever they have at that point) for the next available car to pick them up and drop them off where they are going. There should be a law of some kind about future predictions that are of the form "if everything stays the same as today except this one thing then ..." which states that the prediction is invalid.

Comment: Re:hard to fault Oracle (Score 0) 223

by tsprig (#45950661) Attached to: James Gosling Grades Oracle's Handling of Sun's Tech

You're doing it wrong ...

sensitive data shouldn't be written unencrypted to disk in the first place.

Init doesn't make sure programs always run, it makes sure things are run once and never cares about it again. SMF makes sure that things always run.

Solaris 10/11 has a completely rewritten network stack because the old one was getting sorely long in the tooth. As time went on, developers realized that networking has gotten far more complex in enterprise environments than an interface like ifconfig can cope with. As such, there is still an ifconfig but there are many other tools for configuring the network as well.

I stopped using any kind of Solaris once they killed off the OpenSolaris community. I was an unofficial Nexenta developer and very keen on some features (and not so much on other bugs) but overall, the changes made in Solaris/OpenSolaris were done thoughtfully and carefully. At least until Oracle took over. At that point I have no clue except that their NFS appliances are kinda buggy and we are forced to upgrade constantly.

Comment: Re:Oracle is not a person (Score 0) 409

by tsprig (#45950273) Attached to: Lawsuit: Oracle Called $50K 'Good Money For an Indian'

Yes, however, if this person was fired and brought this issue up to management above before going to his lawyers then it's quite possible there is a culture built around it. If that's the case then Oracle isn't quite as shiny as their PR department tries to make them out to be... which I guess is news?

In the sciences, we are now uniquely priviledged to sit side by side with the giants on whose shoulders we stand. -- Gerald Holton