Thursday, November 22, 2012

Transcribed - The Potential For More Confusion

I like to listen to podcasts on my drive to and from work - it helps me soak up knowledge that I wouldn’t otherwise have time to learn. I’m an Apple tech geek, and sometimes I like to listen to indie Mac/iOS developers talk to each other about coding, how their software and the platforms work, the issues they run into, etc. The deeper actual code I’m not familiar with so I’ll usually skip those sections. :)

Recently I sent in a question to one of my favorite podcasts, Core Intuition. This podcast is between Daniel Jalkut of Red Sweater, developer of MarsEdit, Black Ink, and FastScripts, and Manton Reece of Riverfold Software, developer of Tweet Marker, Tweet Library, and Watermark.

In Episode 52, they answered my question! With permission, I have transcribed the answer here so it’ll be searchable for me and others. At time marker 14:57 into the podcast, we have the following:

Monday, October 29, 2012

Are the iPad Mini and other smaller tablets good for Education? Not if you are Budget Constrained

That may sound strange, after all many are proclaiming the opposite because smaller tablets cost less. With the announcement of the various devices - iPad Mini, Google Nexus 7, Samsung Galaxy Tab, and even the Kindle Fires - it seems like an excellent time to get more technology into the hands of students, cost effectively.

In reality, a budget constrained K–12 school district (in the U.S.) needs to keep in mind an important fact - small form factor tablets are not certified for the online testing that will be required in two budget cycles - the 2014–15 school year.

Currently, 25 states are part of SBAC, and 22 (plus the District of Columbia) are part of PARCC. These two organizations have chosen to release the same minimum hardware requirements. The minimum screen size? 9.5 inches for all devices.

I reached out last week to a state of CT official connected to SBAC asking about the smaller screen sizes, and received this as an answer (paraphrased since I did not ask if I could quote him): the smaller screen size technology was purposefully omitted when the new requirements document was written because of potential psychometric testing issues. This may change but for now the minimum screen size is 9.5 inches.

I did ask for the next requirements document to specifically address the smaller form factor. But the bottom line is, if your district is constrained in the amount of new technology it can purchase, don’t even consider it until and unless this sized device can be used for testing.

Wednesday, October 10, 2012

Comments are Off on this blog

Why would I turn comments off on a blog I rarely post to and has never had a comment?

I read this post by Matt Gemmell, and liked what I read: Comments Off

So I decided to accept comments by tweets or email. Please NOTE the text at the top right of the sidebar ————————————————————>

“Please tweet feedback instead of commenting

[best clicked when reading individual post]

Or email chris [AT] denesha [DOT] com”

Anything really cool that others tweet or email will be added as Edits to the original blog entries.

thanks,

chris

Friday, May 27, 2011

Thank You QuiteTall for your post!

It was the top Google hit when I searched on the error I found in my Console system log, and did the trick. Thanks!

I Found This Useful: Error message in OSX Console - Can't create kext cache under / - owner not root

Looks like an interesting blog, from someone using OSX (like me), interested in security (like me), and who has a Synology product (like me) - and this is just from reading his last few posts. I think I'll Follow! :)

chris

[edit 5/27/2011 11:40 AM]
in case the blog ever disappears, the command I needed to run on the root of my OSX drive, to fix the fact that I was the owner, was:
sudo chown root:admin /

Tuesday, May 17, 2011

Protecting 4410 from malware Win32/FakeRean

Thank goodness for FBWF! A user caught this malware over the weekend, and the majority of its effects were mitigated by a reboot.

However, I'll need to lock out more than just HKCU\Software\Microsoft\Windows\CurrentVersion\Run, since as Microsoft explains, this one also takes over HKCU\Software\Classes\.exe, and \exefile or \secfile.

The randomly named file it installed was cnb.exe at %AppData%, and it was set to launch every time you ran any executable. Sneaky!

I've decided that I need to keep the user's registry excluded with FBWF so it can be updated and retained - Acrobat Reader loves adding things to the registry (those files again are NTUSER.DAT and NTUSER.DAT.LOG). So just before I'm ready to create an image, I'll
1) elevate permissions for my one user account to administrator
2) login as that user and get into regedit
3) right click the following key and change the user's permissions to Deny
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
4) add the following three keys since they don't normally exist, and change the user's permissions to Deny
HKCU\Software\Classes\.exe
HKCU\Software\Classes\exefile
HKCU\Software\Classes\secfile

5) lower permissions back to Power User

Hopefully this, along with denying write permissions to the root of %AppData% (Documents and Setting\username\Application Data), will greatly reduce the malware my users are catching.

chris