Viewing Category : hmmm

Post thumbnail of Python memory management
19 May 2010
Continue reading Python memory management

Python memory management

Object creation and deletion is handled for you, but have you ever thought about how it works, when is memory freed, etc.? Think of everything in python as an object. Even something as simple as this, and since’s its a string, you can invoke any string method. When you lose access to some object, that memory is freed on its own. If you assign a string to a variable, you will find the memory locations are the same. Calling __del__ only removes access to the object from the local or global namespace. It does not mean the memory location has been freed.

Post thumbnail of Android update to include flash for Verizon’s Droid smartphone
31 March 2010
Continue reading Android update to include flash for Verizon’s Droid smartphone

Android update to include flash for Verizon’s Droid smartphone

So it’s delayed, it’s not that big of a deal. Features found in the Nexus phone that are missing will be a nice addition, but the big news is flash support is coming. But flash is client side, so I wonder how well that will work on the droid hardware? Even if it renders just fine, is flash the right direction?

Post thumbnail of SSH Captchas and Man In The Middle Attacks
5 February 2010
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SSH Captchas and Man In The Middle Attacks

I can see a use of this type of attack for getting around captchas. If I host a web page that gives you access to download free mp3s, and all you have to do is complete a captcha to get it, what if I get that captcha from another site? I mean, when you load my page, I load the site I want to attack and show you their captcha instead?! That would basically make you my captcha-cracking conscript!

Post thumbnail of IANA set to run out of IPv4 Addresses in 2011
25 January 2010
Continue reading IANA set to run out of IPv4 Addresses in 2011

IANA set to run out of IPv4 Addresses in 2011

The interesting part is 1/8 was just allocated. That’s hard to look at without reading it as one-eighth. IANA predicts all address blocks will be completely assigned by late 2011. I guess the real switch to IPv6 will be a forced one after all.

Post thumbnail of What terms and conditions
21 December 2009
Continue reading What terms and conditions

What terms and conditions

Internet Explorer garbled the terms and conditions when I installed Google Chrome for Windows. It doesn’t seem to be a language pack thing, so what’s going on here? More importantly, what terms and conditions am I bound by? I accepted the terms you see pictured and installed chrome, so now what?

Post thumbnail of Enable ethernet bridging through your firewall using iptables or sysctl.conf
23 November 2009
Continue reading Enable ethernet bridging through your firewall using iptables or sysctl.conf

Enable ethernet bridging through your firewall using iptables or sysctl.conf

Which is better? Which is faster? For a desktop system, I don’t think it really matters if you have to process a bunch of rules. How many can there be, and how much network traffic are you seeing anyway? It’s probably more efficient to modify your sysctl.conf, but it seems more organized to do it all with iptables.

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