Could a mac application regulate internet usage? [closed] - objective-c

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I'm not sure how open the Mac platform is for 3rd party applications.
Would it be possible to write software that regulates internet usage?
Say I wanted to only allow internet usage between 5-6pm? Is that possible?
Any pointers on how to get started?

Yes. You can look at the Mac app Self Control:
http://visitsteve.com/made/selfcontrol/
This application disables a certain list of sites for a defined period of time. I know that the application uses the /etc/hosts file to disable access to these sites by setting all of these hosts to 127.0.0.1. Obviously a savvy user could override this method, but it works well.

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Can a ransomware in a VMware break out? [closed]

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I want to test some Ransomware. Therefore I wanna use VMware and create a virtual machine, where I can execute this software. I already deleted the Network device, so that no connection is possible between my computer and the VM. Do I need to know something more about it. Could it be possible that the virus breaks out and affects my PC?
Make sure that you are not playing around with Cerber 6 Ransomware because it has Anti-VM features that can easily bluff you when you are on the test. I just got to know the same from this post:http://ransomwares.net/cerber-6-ransomware/. I request you to read this post to know more about Cerber's new Anti-VM & Anti-Sandboxing features which makes it dangerous than never before!
Be sure to disable all shared folders. Also disable any CPU virtualisation acceleration, then you should be fine.

Can I use Dropbox to back the auto-update feature for my application? [closed]

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I want to add an auto-update feature for my application, but I don't have a server or a good host for making this feature. Can I use Dropbox or any other free services to add this feature to my programs?
As far as I can tell, there is nothing in the Dropbox terms and conditions to forbid you from using it to distribute updates for your software. I you want legal advice on what you can and cannot do, then please consult a lawyer, not a bunch of programmers.

How to allow limited internet access to employees/children [closed]

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I was wondering how I could set up a computer (windwos xp) or browser to allow access to only 2 or 3 websites? I know where I currently work they have 'email stations' which are computers will access only to the company homepage and email login. Please let me know any ideas you all have.
Thanks!
This is accomplished by using a proxy. There are several free, open source proxies (such as squid and varnish), but it may be easier to look at some of the for-pay solutions for parental controls. I looked at net nanny before for some customers, and they were happy with it.
McAfee has some parental control software built in to its standard PC protection package.
It allows you pretty easy control over home much time can be spent online and what kind of sites can be accessed.
You can download a free trial on the website. Its worth a try.

Simulate or Virtual Twain source for Twain development [closed]

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For developing a web based scan solution, I would love to test it on Windows or Mac without actually hooking up a scanner to my box. So is there a program/tool that emulates or gives me a virtual twain source with some default image data?
The Twain sample driver that comes along with the twain sample application up on source forge should have what you're looking for.
http://sourceforge.net/projects/twain-samples/files/TWAIN%202%20Sample%20Application/
Yes, there are plenty of solutions for this. We are using TerminalWorks' UniTwain application. The users are very satisfied as it is pretty simple to use and it does it's job. This is the download link: http://www.terminalworks.com/unitwain
both of above are paid apps.
there is one open source:
http://sourceforge.net/projects/twain-samples/files/
you need Data Source, it adds virtual scanner, which gives you the file if asked.
dont know if the received sample file can be changed, but for testing its good.

What is the best "Chat Now" component available for integration with my website? [closed]

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I'm looking for a "Chat Now" component to add to my website. I am using Drupal (running on a Windows server) if it matters.
I'm looking for something that the client initiates (I do not want to hound a client looking at my site). I want there to be no extra installs required for the client.
On my side, I want it to integrate with Skype or another common instant messaging tool.
I prefer free, but if it is low-cost (not a monthly fee) I would also be interested.
I like http://oggchat.com/ since it routes your chats to GTalk and GMail.