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Showing posts with label Computer. Show all posts
Showing posts with label Computer. Show all posts

How To Access Your Entire Computer From an iPad

How To: Access Your Entire Computer From an iPad1
I don't buy into the iPad as a laptop replacement—not quite. But it is fantastic at tapping into your computers to access video and audio, documents, and even your full desktop, remotely. Here's how.
The iPad is first a foremost a device for consuming media, and where is most of your media if not on your desktop or laptop? All your videos, both self-created and downloaded; your music collection, which is so much larger than your iPad's flash storage can dream of accomodating; your store of documents, which contain so much information about you, your work and your interests. On your iPad, this stuff is too often there, not here—but it doesn't have to be.
You can easily access all of these things from your iPad with a set of simple-to-use apps, and where those don't work, you can actually control your computer—mouse and all—from your iPad. Here's what you need:

Audio and Video

Audio and video streaming on the iPad is, for the time being, the domain of two apps: Air Video and StreamToMe. They're extremely similar, sharing their $3 price, iPhone compatibility, and an underlying video conversion library, but a few key differences will determine which one you need to download. So!
If you...
• Have a Windows PC
• Don't need to stream audio
• Tend to store your content in h.264/mp4 files
Go with Air Video. It's a wonderful app, which lets you stream video—even in formats not natively supported by the iPad—both locally and remotely (with simple port forwarding), and which has both Mac and PC server software. It's flexible as well, giving you precise control over streamed video quality, and options for either transcoding video live, or pre-converting it before streaming.
How To: Access Your Entire Computer From an iPad

h.264 playback, even in HD, seemed cleaner and bit smoother than in StreamToMe, so if you've ripped or downloaded most of your content in that format, Air Video is a slightly better choice. It transcodes your downloaded .avi file beautifully, too.
(Note there currently isn't a good DLNA streaming app, though once its bugs are worked out, PlugPlayer shows promise. For the time being, Air Video is the only way to stream and transcode your video library stored on a Windows PC)
If you...
• Have a Mac
• Want to stream audio files as well
Then you should download StreamToMe. It too can transcode video in real time, so you don't need to worry about converting your home video files or P2P downloads. Its main advantage over Air Video is that it can stream audio. It'd be nice if the app had an iTunes-style artist view, but if your iTunes music folder is organized by artist name and album title (if you haven't told it to do something else, iTunes will have taken care of this for you), navigating through and playing songs is pretty straightforward.
How To: Access Your Entire Computer From an iPad

The setup routines for both apps are nearly identical. Each requires a server app to be run on your computer, which needs to be pointed to your video library, and each will automatically recognize your computer over a local network. For remote streaming, each app provides guidance for which ports to forward on your router. (For instructions for your specific router, check here.) This means you can stream your home video from anywhere—work, a hotel room, whatever—over Wi-Fi.

Documents

Document sharing on the iPad isn't particularly easy, relying on the awkward iTunes file sharing system, which only lets you access documents in the app they've been flagged for. To browse apps in a more useful way, you'll need get an app called GoodReader. Its $1.
How To: Access Your Entire Computer From an iPad

GoodReader is an app that enables you to connect to all kinds of file servers, be they cloud-based (Google Docs, Dropbox, or MobileMe) or local (an FTP or WebDAV server). Once connected, GoodReader lists files that can be read on a given server, which are left up to the iPad's inbuilt viewers to display. This means that Word, Excel and PowerPoint documents, as well as a range of other text files, images, and even audio files, can be opened in the app.
How To: Access Your Entire Computer From an iPad

One of the most compelling features of GoodReader is that it can turn your iPad into a local file server, which you can mount and connect to from any Mac or PC. This feature lets you drag and drop your documents to the iPad, as if it were a NAS device. (GoodReader also shows up in the iTunes USB file transfer dialog, but Wi-Fi drag-and-drop transfer is much faster and easier, once it's set up.) Instructions for server setup are available here.
Additionally, using the app's "Manage Files" pane, you can sort, administer and email your documents as well. It's basically like having a disk for all kinds of media, on your iPad, along with a file browser. Ha!

Controlling Your Desktop

If you want full access to your computer, video, audio and document file servers won't be enough. What about your applications? Your iPad-incompatible files? Your entire desktop? To get that kind of control, you need to use VNC.
From our previous How To guide on the subject:
VNC (virtual network computing) is one of those tricks that never gets old, and having it set up can often save your ass-whether you left some info on your home computer that you need at work, want to check on your massive BitTorrent queue to schedule the evening's entertainments, or help your poor parents use clip art in Microsoft Word, having remote access can be handy dandy.
Once you've done that, you'll need an iPad VNC client. The iPad App Store already has a handful of VNC apps available for download. The ones I'd go with are Mocha VNC Lite (a free, limited-capability app), and if you find you like the VNC concept, the $12 Desktop Connect.
How To: Access Your Entire Computer From an iPad

It's strange, controlling a mouse-based computer from a touchscreen device, but there's one option I've found makes life a lot easier: In Desktop Connect, turn Touchscreen Mode off. This options has you control the mouse as if the whole touchscreen is a trackpad, rather than having to guide the mouse directly with your finger. After a few minutes, you'll be clicking around Windows or OS X without thinking about it.
And that's it! If you have more tips and tools to share,Happy iPadding, folks!

From  Gizmodo

How to Secure Your Computer With a BIOS or UEFI Password

enter-bios-password-at-boot
A Windows, Linux, or Mac password just prevents people from logging into your operating system. It doesn’t prevent people from booting other operating systems, wiping your drive, or using a live CD to access your files.
Your computer’s BIOS or UEFI firmware offers the ability to set lower-level passwords. These passwords allow you to restrict people from booting the computer, booting from removable devices, and changing BIOS or UEFI settings without your permission.

When You May Want to Do This

Most people shouldn’t need to set a BIOS or UEFI password. If you’d like to protect your sensitive files, encrypting your hard drive is a better solution. BIOS and UEFI passwords are particularly ideal for public or workplace computers. They allow you to restrict people from booting alternative operating systems on removable devices and prevent people from installing another operating system over the computer’s current operating system.
Warning: Be sure to remember any passwords you set. You can reset the BIOS password on a desktop PC that you can open fairly easily, but this process may be much more difficult on a laptop you can’t open.
invalid-bios-password

How It Works

Let’s say you’ve followed good security practices and have a password set on your Windows user account. When your computer boots, someone will have to enter your Windows user account password to use it or access your files, right? Not necessarily.
The person could insert a removable device like a USB drive, CD, or DVD with an operating system on it. They could boot from that device and access a live Linux desktop — if your files are unencrypted, they could access your files. A Windows user account password doesn’t protect your files. They could also boot from a Windows installer disc and install a new copy of Windows over the current copy of Windows on the computer.
You could change the boot order to force the computer to always boot from its internal hard drive, but someone could enter your BIOS and change your boot order to boot the removable device.
A BIOS or UEFI firmware password provides some protection against this. Depending on how you configure the password, people will need the password to boot the computer or just to change BIOS settings.
Of course, if someone has physical access to your computer, all bets are off. They could crack it open and remove your hard drive or insert a different hard drive. They could use their physical access to reset the BIOS password — we’ll show you how to do that later. A BIOS password still does provide extra protection here, particularly in situations where people have access to a keyboard and USB ports, but the computer’s case is locked up and they can’t open it.
bios-password-options

How to Set a BIOS or UEFI Password

In the BIOS settings screen, locate the password option, configure your password settings however you like, and enter a password. You may be able to set different passwords — for example, one password that allows the computer to boot and one that controls access to BIOS settings.These passwords are set in your BIOS or UEFI settings screen. On pre-Windows 8 computers, you’ll need to reboot your computer and press the appropriate key during the boot-up process to bring up the BIOS settings screen. This key varies from computer to computer, but is often F2, Delete, Esc, F1, or F10. If you need help, look at your computer’s documentation or Google its model number and “BIOS key” for more information. (If you built your own computer, look for your motherboard model’s BIOS key.)
You’ll also want to visit the Boot Order section and ensure the boot order is locked down so people can’t boot from removable devices without your permission.
set-bios-password-options
On post-Windows 8 computers, you’ll have toenter the UEFI firmware settings screen through Windows 8′s boot options. Your computer’s UEFI settings screen will hopefully provide you with a password option that works similarly to a BIOS password.
access-uefi-firmware-settings
On Mac computers, reboot the Mac, hold Command+R to boot into Recovery Mode, and click Utilities > Firmware Password to set a UEFI firmware password.

How to Reset a BIOS or UEFI Firmware Password

You can generally bypass BIOS or UEFI passwords with physical access to the computer. This is easiest on a desktop computer that’s designed to be opened. The password is stored in volatile memory, powered by a small battery. Reset the BIOS settings and you’ll reset the password — you can do this with a jumper or by removing and reinserting the battery. Follow our guide to clearing your computer’s CMOS to reset a BIOS password.
This process will obviously be more difficult if you have a laptop you can’t open up. Some computer models may have “back door” passwords that allow you to access the BIOS if you forget the password, but don’t count on it.
You may also be able to use professional services to reset passwords you forget. For example, if you set a firmware password on a MacBook and forget it, you may have to visit an Apple Store to have them fix it for you.
remove-cmos-battery-to-reset-bios-settings

BIOS and UEFI passwords aren’t something most people should ever use, but they’re a useful security feature for many public and business computers. If you operated some sort of cybercafé, you’d probably want to set a BIOS or UEFI password to prevent people from booting into different operating systems on your computers. Sure, they could bypass the protection by opening up the computer’s case, but that’s harder to do than simply inserting a USB drive and rebooting.

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