Rabu, 24 Juli 2013

How to shut off certain devices from wifi?

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Mohammad Z


I have to shut off the wifi to my sons' ipads so they can't go on the internet without my permission but I can't turn it off from the actual ipad as they are old enough to know how to turn back on. Is there any step by step way to shut their wifi on or off instead of changing password? By the way my internet provider is comcast.


Answer
You seek a technical solution to a social problem, which rarely works effectively or for very long. You'll find the never-ending quest for technical fixes to social problems in questions routinely posed here:
--How do I keep my { spouse | sibling | roommate } from { hogging the bandwidth with porn | using more than x% of wireless | staying up all night on Facebook }

You are about to become an iOS app developer. A quick search for 'ipad wifi restrictions', 'ipad and kids' and similar searches finds this is like the problem elementary schools and libraries face when allowing children to use computers, with no easy or cheap technical fixes. I believe the most effective fixes are a mix of technical and social fixes -- nice way of saying laying down the law with the kids, saying they'll be monitored, and allowing the kids to rat each other out as violators. Oddly, that's the same approach at large corporations I've worked for.

Apple iOS devices can be restricted (such as only connecting to a certain wireless network or disabling the camera) with locked profiles delivered several ways, including over-the-air, but it sounds more like an enterprise solution.

What you want doesn't appear to exist - a locked app that allows you to kill the WiFi remotely over the air, and probably requires you to connect the device via USB to re-enable wireless.

Lacking that, you can restrict the iPads wireless connectivity while at home:
--Purchase a wireless access point or router for use by the iPads. If it's a router, disable the DHCP server and connect it to your existing router using the LAN ports.
--Configure the iPads to securely connect to the new wireless router. Change the SSID and security key on your existing router so the iPads cannot connect to the old router.
--When the kids need internet access, turn on the new router. After their access is done, turn it off

When the kids start turning the router on without your permission, start disconnecting the new router at your existing router (assuming you put your existing router in a secure or monitored location). To make the disconnect/reconect easier, you may purchase another small 4-port switch to connect your old router to the new router - you turn the new switch on and off to disconnect and reconnect the new router.

If you want to be fair, establish a 'no internet' time for the family (such as 10 pm to 6 am) and put the main router on a timer. Your existing router may have some time-of-day settings that allow you to do this.

Your router may also have settings for time-of-day or service restrictions for individual devices by IP or MAC addresses, but do not expect that to work for long. This forum has many postings from kids trying to get around those router restrictions, which are fairly easy to defeat in most routers.

I have a GE Simon 3 security system can i add video cameras and access with my iphone?




Edgar


contract is ended do i have to stick with the current monitoring service adt or can drop my monthly to 9.99.. please link me to monitoring services if you know of any thanks


Answer
Hello

Check out this link: http://www.ascendentgroup.com/~ascendent/HTML%20E-mail/X4S/x4s.html

You should not pay any monthly fee for your CCTV system just store your images on site.

95% of cameras and DVR will not allow you to view them with the I phone or other smart phones.
And even then you need permission and password.


One of the few manufactures that allow you to do this is Ascendent Technology Group.
http://www.ascendentgroup.com/

The X4S Series is an intelligent, cost-effective CCTV management solution, integrating the latest technology and the most advanced features while maintaining a simple, intuitive and user friendly interface. The X4S Series is a complete 24/7 turn key solution that meets the demanding security needs of todayâs business and home owners.

Key Features:
⢠4CH Real time DVR
⢠Cost effective turn key CCTV solution
⢠True Plug and play operation
⢠Ultra High Resolution D1 Images
⢠H.264 reduces file size to 40% of Mpeg4 and 200% of MPEG2.
⢠USB 2.0 Smart backup automatically includes software on backup medium
⢠HDMI and VGA dispaly
⢠5 year warranty on HDD
⢠Remote connectivity; view and configure DVR from anywhere using Internet Explorer, Firefox or Safari, and I phone (free)



(I phone app provided when you purchase a DVR)

Smart Backup Backup has never been easier or faster once you have found the video by either time or search. Simply input the time and cameras you wish and backup via USB 2.0 drive. When you backup video the playback software is automatically installed on the flash drive eliminating the need for codecs or special programs saving both time and money.

Remote Connectivity The X4S Series has industry-leading remote connectivity allowing you to connect and view all your cameras instantly from anywhere in the world using either PC or MAC platforms. The X4S also allows for remote setup giving installers and integrators the ability to quickly and cost-effectively support their customers with sufficient privileges to do so.

HDMI Display: The X4S Series has an embedded High resolution (Super extended Graphics Array) allowing you to view your cameras on high definition displays such as LCD, DLP and Plasma (up to1600X1200 resolution).This eliminates the stretching, pix-elation and distortion that normally occurs, leaving you with vivid crystal-clear images.

Plug and Play Operation While the features and technology are highly advanced they are designed around a user-friendly graphical interface for simple and quick operation. The AVP Series professional DVR system is now as easy to use as a VCR with search, backup, display and remote connections that are easily set up in less than fifteen minutes from start to finish. The X4S Series automatically rewrites the oldest image with the newest, providing effective maintenance-free operation.

Longevity and Reliability The X4S Series is comprised of high quality components precision engineered for unparalleled performance and real ability for flawless 24/7 operation. We use only the finest Seagate HDDs designed for continuous operation and backed by a 5-year warranty directly from Seagate.

Aesthetic Low-Profile Design All these features integrated into a rugged and stylish aluminum chassis allow it to be used in the most upscale installations making the AV Series the choice for professional security integrators worldwide.


The X4S comes in a 4, 8, and 16ch and offers real time performance for both display and record.

Manufacturer: Ascendent Technology Group
http://www.ascendentgroup.com/




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How do you hook up a security camera to a dvd recorder?

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John


i just bought a security camera and a tv from walmart . I need to record it on a dvd-r disk but im not sure what equiptment i need and how to set it up. thanks-john


Answer
You just wasted whatever money you spent at walmart they will work well for dummy cameras but that's it

Not all DVR are created equal, in fact there are many options that offer varying levels of performance much like the automobile industry. In the world of DVRs you can buy the equivalent of a $10,000 Kia and a $350,000 Ferrari and everything in between. Both have 4 wheels and windshield but that is where the similarities end, itâs under the hood that counts. And using the car analogy what you have here with the the Walmart camera is a used lawnmower that needs the blade to be replaced.

Just like any other consumer electronic in the end you get what you pay for. Most retailers and sellers make about a 40-80% profit margin, this is after costs like shipping and overhead. That means when you buy a product that costs $100.00 the manufacturer usually has only spent $30 to build it which simply means itâs not a good product and will probably have a working life of about 2 months. There is a reason these products are 1/10 of the price of good and reliable DVR brand names. The type of seller these products attract are online sellers (ebay) and will make profits margins as low as 2% which means they canât afford to offer good service or allow for RMAs (returns). Cheap products are like disposable razors they are NOT designed to last for a long time and you will end up replacing them every 2 months.

Now some products can be made cheaply like ipod cases, screen protectors, and other simple products with no moving parts or electronics. DVRs need to be good quality as they run 24/7 (20X more than the average electronic device) and process anywhere from 30-480 frames per second which in a year is over 15 billion images, and a good DVR should last 3-5 years.

A true DVR requires years of research and development to facilitate the seamless integration of both the hardware and software. DVRs are highly complex systems that must run 24/7, processing millions of images per day and are one of the few products that canât be made both well and cheaply. Cheap and inexpensive products like Q-see, Swan, Lorex, and other low grade DVRâs sold by Tiger Direct, Newegg, Sams Club, are not used by security professionals and should only be used by hobbyists.

I suggest you buy a PC based DVR has they have more processing power and normally have a much smaller file size and offer more features then Standalone DVR's. I know many people buy a cheap standalone DVR, only to upgrade to a PC based in 6 months especially when they are using it to manage a store remotely. Also PC based allows you to record up to 64 cameras where a standalone will have a limit of 16.

File size is crucial to streaming because most DVRâs on the market record at real time performance (30FPS per channel) so on a 4CH is trying to send 120, 8CH 240, and a 16CH 480 images per second which requires way too much bandwidth even for the most extreme internet connections.

The smaller the files size the more images are able to be sent, and the faster they can be processed improving both FPS and speed. File size is the heart of any DVR and goes far beyond just its streaming capabilities, as it also determines the recording storage time, how much you can back up at once, how fast it renders and searches video. The file size of a DVR impacts the performance of the DVR in just about every aspect from speed to longevity and is often the most important spec of any DVR.

If you are buying a DVR and streaming is a high priority I suggest you ask for a demo and connect to the DVR to make sure it is able to stream fast enough for your needs. Most DVRs say they have remote viewing but it is often too slow and laggy to be of any use especially if it is a standalone. Some good DVR brands that I recommend are Bosch, Pelco, Honeywell and Ascendent. These brands are what security professionals use, Q-see, Swan and Lorex are only used in residential applications because they are sold by Tiger Direct, Newegg, Sams Club, Costco and other retail outlets but are not used by any security professionals also their tech support rarely speaks English as their first language...

Here are the websites of some good DVR and CCTV camera brands.

http://www.ascendentgroup.com (AVP-4120)
http://www.honeywell.com
www.pelco.com/ (DX-4000)
http://www.bosch.com


Two good economical DVRs I would recommend are Ascendent's AVP-4120 DVR or Pelco's DX-400. They will allow you to view all your cameras instantly from anywhere in the world using either IE, or a client software. The AVP-4120 uses the latest H.264 codec to improve streaming and recording time, and will allow PCs and Apple computers to remotely view cameras. These are the DVRs I would recommend that are good quality and affordable

What are good security cameras for home use?




Andrew


I'm looking for a security camera that I can use outdoors with night vision because I have been receiving a lot of pranks.
Wireless cameras would be great but wired ones are good too!



Answer
You could check out the Cisco-Linksys Wireless-N Internet Home Monitoring Camera. With its high-performance network camera provides a low-cost, convenient solution for remote monitoring and home security. Its a stand-alone system with a built-in CPU, Web server and multiple video format compatibility. It's multi functional surveillance system supports high-quality video and audio, and its authentication process requires a user name and password set by the camera's administrator
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