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Comment Re:Not sure about retaliation... (Score 1) 142

by StarDrifter (#34968992) Attached to: Is Retaliation the Answer To Cyber Attacks?

DenyHosts includes a PURGE_DENY option which allows you to specify how long blocks are kept for.

Spoofing shouldn't be an issue here. We're not talking about logging SYN packets but failed login attempts. An attacker can't perform those without being able to get packets back from the server and they can't do that if they are spoofing their address. Unless perhaps they are plugged into the same hub as the server but if that's the case you've likely got bigger problems to worry about.
Google

Google Reportedly Ditching Windows 1003

Posted by kdawson from the it's-ok-microsofties-use-bing dept.
Reader awyeah notes a Financial Times report that Google is ditching the use of Windows internally. Some blogs have picked up the FT piece but so far there isn't any other independent reporting of the claim, which is based on comments from anonymous Googlers. One indication of possibly hasty reporting is the note that Google "employs more than 10,000 workers internationally," whereas it's easy enough to find official word that the total exceeds 20,000. "The directive to move to other operating systems began in earnest in January, after Google's Chinese operations were hacked, and could effectively end the use of Windows at Google. ... 'We're not doing any more Windows. It is a security effort,' said one Google employee. ... New hires are now given the option of using Apple's Mac computers or PCs running the Linux operating system. 'Linux is open source and we feel good about it,' said one employee. 'Microsoft we don't feel so good about.' ... Employees wanting to stay on Windows required clearance from 'quite senior levels,' one employee said. 'Getting a new Windows machine now requires CIO approval,' said another employee."
Encryption

Sun Plans Security Coprocessor For New Ultrasparc 59

Posted by Soulskill from the a-good-processor-knows-how-to-delegate dept.
angry tapir writes "At the Hot Chips conference at Stanford University, Sun presented plans for a security accelerator chip that it said would reduce encryption costs for applications such as VoIP calls and online banking Web sites. The coprocessor will be included on the same silicon as Rainbow Falls, the code name for the follow-on to Sun's multi-threaded Ultrasparc T2 processor."

Comment Physics 2000 (Score 3, Informative) 145

by StarDrifter (#29085619) Attached to: Simple, Portable Physics Simulations

The University of Colorado has something called Physics 2000 that has a bunch of applets. Click on "Applet Thumbnails" in the top-left frame. One of my favorites is "Satellite orbits" (click on "Upcoming Applets"). You can try to find stable orbits around the Earth. You can try to find stable orbits around the Moon (although I don't think there are any). You can try launching some objects clockwise and some counter-clockwise and see if it is easier to get things in a stable orbit one way or the other. You can launch a bunch of objects in random directions with random velocities and watch most of them die an early death and a few stick around much longer. Sometimes you can see Orbital resonance. The simulation extends beyond the visible portion of the screen so you can even get objects in orbits with very long periods that are only visible for a very short portion of their orbit as they dip close to the Earth and then sail away again.

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