Audience Questions

Audience QuestionsHour 1

Hour 1 Hour 2 Hour 3
Watch George from Toronto, Ontario, Canada Comments

George lives in an apartment and he has an outside Wi-Fi security camera. A neighbor would like to have access to the video feed, and is wondering if he could do that without giving out access to his network. Leo says that a lot of security cams have a web based interface, but George says he needs to be on his network to access the camera.

The camera has an IP address on his network, something like "". George also has a public IP address, the one the ISP gives him. So he could "DMZ" the address for the camera. By putting his camera out on the internet, he's making it public. He should password protect the camera if he doesn't want just anyone seeing that. He can also set up his router so his neighbor would have to access his IP address on a specific port to see the camera.

George still doesn't want his neighbor to access the camera and leave it on all day, using up his bandwidth though. For this, he would need a proxy server like SQUID to control his bandwidth and it's really complicated to manage. Not worth it. It's easier to just get a DropCam and give him access to it.

PadreSJ in the chatroom says all he needs to do is take his router, install DD-WRT which will allow him to set up a VLAN. Then get a camera like the Axis camera which has a preset timeout and a bandwidth cap. He could run that on the VLAN separate from the LAN of the main network. The neighbor would only be allowed to see the camera, would timeout after a few minutes, and there's a bandwidth cap.

Leo also suggests putting it on a second router for it.

Watch Chris from Knoxville, TN Comments

Chris is a long haul trucker who surfs for free Wi-Fi wherever he can find it. Is there a system that will help him find WiFi signals? Leo says not really. Wi-Fi is really designed for a range of about 300 feet. That's why the 3G/4G access is so sophisticated. It has to do with handing off from one area to another.

Free is fairly tricky as well. There is a free service called FreedomPop, but it's not everywhere, and it's ad supported. It's 4G, and he would need to buy a special connector to pick up the signal. It may be worth a look though.

PadreSJ in the chatroom says that he has Freedom pop and they charge him $3.50 for half a gig. Not a bad deal for checking emails on the road.

Watch Jimmy from Detroit, MI Comments

Leo says being anonymous isn't the same thing as being secure. He can be anonymous and not secure on the net, and vice versa. How can Jimmy be more secure while? Leo says a good place to start is with TWiTs netcast Security Now. There's security issues popping up all the time and the only way to be completely secure is to stay off the internet. That really isn't practical in today's information age. There's a great source for tips on security at US-Computer Emergency Response Team (US-CERT). Also, don't fall for social engineering where he would get an email or phone call from "Microsoft," saying they see viruses on his computer. Microsoft will never contact him.

The US National Security Administration (NSA) has some great Security Configuration Guides on how to secure access as well. They have a program called STOP-THINK-CONNECT. We pay for this stuff, he may as well take advantage of the information they provide.

Also, get a router. Routers are great buffers. They're dumb boxes that reject most incoming attacks. Turn on WPA2 encryption on the wireless router. Give it a really hard to guess password that has alphanumerics. He should also change the SSID (name) of his router to something cryptic (most are set to "Linksys"). Disable UPnP. And it's very important that he keep his OS and software up to date, especially browsers, Adobe reader, and Flash.

Audience QuestionsHour 2

Hour 1 Hour 2 Hour 3
Watch George from Venice, FL Comments

George isn't thrilled that Google+ is taking over Picasa and posting them online. Leo suspects that Google plans on phasing out PicasaWeb in favor of Google+ posting. Leo suggests going over to PicasaWeb and marking his pictures private. When he goes to, he'll be sent to Google+ initially. However, there will be a link to go back to PicasaWeb and he can then set all of his images to private.

There's also Picasa the program, which will enable him to not only manage the privacy of his images, but also download them back en masse. For information on setting his security on Picasa/Google+, check out this Google Tech Note and this Tech note.

Watch Paul from Saskatchewan, CAN Comments

Paul has Windows 8 and wants to know if he can change background of the start tile screens to a picture. Leo doesn't think that's possible, unless he uses a third party option like StarDock.

iKyle says that StarDock has a great program called Decor8 that does it. Then he can use his own images. Another option is Stardock's ModernMix. In fact, StarDock has a ton of great apps that will help him customize Windows 8, including making it look like Windows 7.

Watch Mike from Winnetka, CA Comments

Mike scanned his friend's computers using his Eset Nod32 software and it brings up results that their free AVS software doesn't see. Mike's friends are suspecting that ESET is creating threats. Is there a way to prove that these results are accurate?

Leo says to get a second opinion with an online scan. Trend Micro has a great online scanner that can verify it. If they're using something other than Microsoft's Security Essentials, tell them to replace it. MSE is free as well.

(Disclaimer: ESET is a sponsor).

Watch Brent from Sydney, AUS Comments

Brent has a TV tuner card in his computer with two screens, and he's using Linux. He wants to dedicate one of his monitors to TV. Leo says that is likely a software issue and that Hauppage doesn't support Linux. That doesn't mean there isn't a third party open source driver option. MythTV is a linux based system and they have a list of which cards work and which don't in Linux.

What if he ran Windows virtually for the TV? Leo says that could maybe work, and is worth a try. It may not though, because virtualization usually uses generic drivers.

Brent also wants to know what Leo thinks of Hola Unblocker to watch streams in the US. Leo says Hola is a proxy service that fools websites into thinking he's inside the US. If it's in the Firefox store, it has to be vetted, so it's probably OK.

Watch James from San Diego, CA Comments

James wants to know if DSL Exteme's router will work with XBox Live. Leo says that it will work with all internet services. XBox Live configures the router to use Universal Plug n Play, and that's a security issue. So he'll want to use port forwarding to get around that and keep UPnP disabled. There may be a bit of latency, but DSL has less latency than a cable provider.

(Disclaimer: DSL Extreme is a sponsor).

Watch Lee from Colton, CA Comments

Lee recently bought a Vizio 55" TV. However, frequently when he turns the TV off, it will either stay on or turn back on again. Leo says the TV probably senses the signal loss and then just stays on. It's perfectly normal and Leo suggests going into the TV menu settings to make sure it's set to turn off when the cable box goes off.

Additionally, Lee wants to know if he can replace the subwoofer in a Polk speaker with a third party? Leo says that it's possible to use a third party, but he'll lose quality as Polk speakers are balanced. He'll really want to use the same, matching subwoofer. Probably better to look for a used speaker for parts and replace it that way.

Audience QuestionsHour 3

Hour 1 Hour 2 Hour 3
Watch Charlie from Haver, MT Comments

Charlie wants to know what Powerline Networking is and why would anyone need it? Leo says the idea is that the house is already wired with power lines, so why not piggy back on them? When it first came out, it wasn't that great. Engineers have improved it to the point that it's very reliable and is great for those who have large houses and need to access their network throughout the house when Wi-Fi isn't practical.

Watch Becky from Yorba Linda, CA Comments

Leo says it probably won't work too well with that. Credit card machines and fax machines use modem technology, which don't really work with internet phone solutions. They do have internet based credit card machines now that would be much better.

Watch Patrick from Sullivan, IL Comments

Patrick is 10 years old and just built his first gaming computer. Now he wants to overclock it. Leo says that overclocking is where he would make a computer chip run faster than it's rated to run. In order to do it, he'll need to change settings in the motherboard and bump the voltage a bit. Often he would have to cool it down more because the faster it runs, the hotter it gets. If it gets unreliable, it's overheating. It's not usually possible to go more than 5-10% faster. The best place to learn more is at

He also has his own YouTube Channel called 2FriendsMC and it's all about Minecraft!

Watch Tony from Orange, CA Comments

Tony wants to know if internet enabled TVs are secure. Is there an antivirus for them? Leo says that internet TVs work on a heavily sandboxed and modified version of Linux and it's very unlikely that a hacker could install something onto a computer's system. Linux isn't really on a hacker's radar. So there's little to worry about.

Tony is also concerned about security in his mobile phone. Leo says that manufacturers have made cellphones more resilient to attacks because the smartphone was created after exploits became all the rage, whereas, Windows wasn't. Android is a little vulnerable and we've seen some attacks there. That's why Leo uses LookOut, which scans the app and makes sure it isn't malware.

Leo advises buying all of his apps from the Google Play store or the Amazon store. They're vetted much like Apple does with the iTunes app store.

Watch Art from Scottsdale, AZ Comments

Art wants to listen to his blu-ray movies via bluetooth with a wireless set of headphones. Leo says he would need a Bluetooth dongle. Some work well, but a lot don't. There's another issue of battery life. Leo also says that Art will want a headphone and Bluetooth adapter that supports the stereo A2DP spec. There's a number of them for sale on Amazon. Check out the Miccus Home RTX Transmitter/Receiver.

The guys from StudioTech.TV says that latency is the issue, and syncing the audio to the video could be a challenge.

Watch Bill from Sherman Oaks, CA Comments

Bill wants to know about how to backup applications when he does his off site backup. Leo says that he wouldn't backup apps when doing these backups. Only the data itself. Bill can always reinstall the software. He'll want to backup any serial or key numbers, but backups are largely just data, especially when sending it off site via something like Carbonite.

It would be a good idea to make an image of the hard drive. That way if something goes wrong, he can restore that image, and his apps are all there. He should update that image from time to time as he makes changes, too. There's plenty of options for imaging his drive: is free, or which is another great one. On the Mac: SuperDuper.