Get Started With a VPN: For Beginners, Power Users

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Do you want to be secure--I mean really secure--when you're on the Internet? If so, then you want a virtual private network.

A VPN creates a secure "tunnel" across the Internet between you and your office, a VPN provider, or your home. Why would you want that? Easy-to-use programs such as Firesheep make it easy for snoops to see what you're writing in your e-mail messages, posting to your Facebook page, or buying online. But with a VPN, you can surf the Web through that virtual tunnel, away from prying eyes, and your Internet traffic is encrypted.

Whether you just want to access Wi-Fi networks on the road without potentially exposing your activities to nosy strangers, or whether you need to enable a team of remote employees to handle business securely on the Internet, you can find a VPN to fit your needs. This guide will walk you through VPN essentials for beginners and power users.

VPN for Beginners

The easiest and least costly way to get a VPN service is to obtain one from your company, school, or organization. Not on the road often? Check with your IT department to see if they offer a VPN to all users. If they do, life is good: Just install the corporate VPN software, set it up, and you're ready to go. The next time you turn on your PC, fire up the VPN application before you start surfing the Web.

What if your IT department doesn't have a VPN--or what if you don't have an IT department? You're not out of luck. Lately, numerous VPN providers, including Banana VPN, Black Logic, LogMeIn Hamachi, and StrongVPN, have started offering their services for a fee, generally from $15 to $20 a month. To learn more, take a look at a comparison of three personal VPN services.

How do you go about picking one? If a service has an online forum, check what their customers have posted. Call or e-mail to see if real people answer. Generally speaking, bigger is better. If they're a tiny company, that may be fine for you as an individual, but they probably can't give you the support a small company needs.

Is the privacy factor alone worth the effort? Yes, but VPNs offer other advantages as well. For example, if you're in Canada, ordinarily you can't watch a U.S. TV show on Hulu. But you can access the show if you use a VPN to obtain a U.S. IP (Internet Protocol) address.

Some VPN providers offer another benefit: anonymous Web browsing, which allows you to roam the Internet without being tracked. If your ISP blocks some applications, such as Skype or other VoIP (Voice over Internet Protocol) applications, you can use a VPN to get around the restrictions.

These VPN services may sound exactly like what you need. Beware, however: Not all services are created equal. If a service doesn't have enough VPN servers--technically, VPN concentrators--to support the number of customers, you may experience poor Internet speeds or be unable to make a connection at all.

So, before subscribing to a VPN service, look into what its customers say about it. Better still, if the company offers a free test period, take advantage of it before paying money for a service that may not meet your needs.

VPN Fundamentals for the Power User

Do you want to lock down your Internet connection when you’re on the road? If so, the best approach is, of course, to use a VPN. You’re set if you work for a company that can provide you with a VPN. But if you run your own small business or home office, you also have options.

You can find several, inexpensive ways to get a VPN of your own. Besides paying $15 to $20 a month to a VPN subscription service, you might be able to install a VPN server into your router using open-source, alternative router firmware such as DD-WRT and OpenWRT. This firmware will allow you to use many, but not all, Wi-Fi routers and access points as VPN endpoints.

VPN on Your Router

Before flashing your Wi-Fi hardware with any alternative firmware, make sure that it's supported. The last thing you want to do is to "brick" your wireless device--rendering it useless--just to set up a small VPN. Be sure to consult the DD-WRT supported-device list or the OpenWRT supported-device list. As these lists are all works in progress, check back often if you buy a brand-new router or access point.

If you'd rather not take your hardware's life into your own hands, some routers, such as Buffalo Technology's WZR-HP-G300NH AirStation Nfiniti Wireless-N High Power Router, come with DD-WRT already installed.

VPN Server Software

Some desktop operating systems, including Windows (from XP to Windows 7) and Mac OS X, include VPN server software. Granted, these are very simple VPNs, but they may be all you need. Of course, the Windows Server family comes with more-sophisticated VPN setups. If you're running all Windows 7 clients and Windows Server 2008 R2, you may also want to consider using DirectAccess, an advanced IPSec VPN that runs over IPv6 on ordinary IPv4-based LANs and the Internet.

If you don't choose to use DirectAccess but opt for Microsoft's older VPN technologies, Windows Server 2008 R2 has a helpful new feature: VPN Reconnect. Just as the name suggests, it will try to connect VPN sessions automatically if they're interrupted by a break in Internet connectivity. This function can be handy for users with spotty Wi-Fi connectivity, since they won't need to manually reconnect with the VPN after they reestablish a network connection.

Another way to add a VPN to your small network is to install VPN server software yourself. The best known of these is OpenVPN, which is open-source. It's available in versions for almost all popular desktop operating systems, including Linux, Mac OS X, and Windows.

If setting up native OpenVPN sounds a little too technical for you or your staff, you can run it as a VMware or Windows Virtual Hard Disk OpenVPN virtual appliance. With this arrangement, you'll have a basic VPN up and running in minutes.

But OpenVPN is far from the only VPN software out there. Other programs worth considering are NeoRouter and Tinc. If you want more than just VPN services and do-it-all network-services software packages, I highly recommend the open-source Vyatta, Core 6.1. Vyatta includes OpenVPN.

VPN Appliances

If you plan on having more than a dozen or so users on the VPN at one time, though, you'll want to use an inexpensive VPN hardware appliance such as the Juniper Networks SA700 SSL VPN Appliance, the SonicWall Secure Remote Access Series, or the Vyatta 514.

No matter which VPN you use, you'll need to set your firewall to allow VPN traffic. On many routers and firewalls, this task can be as simple as setting VPN passthrough to allow VPN traffic. Typically, your choices will be PPTP (Point-to-Point Tunneling Protocol), L2TP (Layer Two Tunneling Protocol), or SSL (Secure Sockets Layer). Allow only those VPN protocols that you'll be using--after all, when in doubt with firewalls, it's safer to forbid than to permit.

Check your VPN’s documentation to see which ports you’ll need to open. As for SSL VPNs, they typically use port 443, the usual port for SSL-protected Web servers, so that port should already be open.

Naturally, no matter what VPN you're running and regardless of your network setup, a VPN in a small business is likely to limit its users’ speeds. For example, in my own home office, my Charter cable Internet connection gives me a 25-megabits-per-second downlink and a 3-mbps uplink. This means that no matter how fast my remote network connection is when I connect to my OpenVPN server, my maximum throughput will be limited to 3 mbps.

I've often seen small businesses flummoxed by slow VPN connections. That usually happens because neither the users nor the in-house IT staffers (often one and the same) realize that the math of Internet connections means that the slowest link along the VPN route will determine the VPN's top speed. If you want a really fast VPN, you'll need to bite the bullet and get a high-end Internet connection from your ISP.

Source: http://www.pcworld.com/businesscenter/article/223044-1/get_started_with_a_vpn_for_beginners_power_users_and_it_pros.html

Hibernate VS Sleep VS Shut-Down

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There are many ways to shut down and restart your computer, but – which does what, and which should you use when ?

The answer depends mostly on you. Are you into saving energy or boot-up time? How often do you leave your computer and for how long ?

There are three main shut-down options available in Windows: Shut-Down, Sleep and Hibernate (names may vary depending on the Windows version). In Vista and Windows 7, there is also a fourth option; Hybrid Sleep.

Let’s explore the topic.

Environmental friendly

If your concern is to save energy, and you don’t mind the longer Boot Up time – then you should always use the “Shut Down” option. This will shut down every running service and application and wipe clean your RAM. This option saves the most energy as the computer is not using any power at all when in this state. There might be some power consumption from the main-board as it is still connected to your outlet, but this is significantly little.

Hibernate Vs Sleep

The difference between the two is power-consumption – one use less power than the other.

Sleep Feature = Pause

Sleep is a power-saving state which keeps enough voltage across your RAM to retain the memory for when you “wake up” your computer again.  This mode use the most power of all the “Power-Off Modes” as the computer need to be able to keep your RAM alive. The Sleep Feature is recommended when you leave your computer for a short period (like going to lunch or step out for a few hours). Putting your computer into the sleep state is like pausing a DVD player—the computer immediately stops what it’s doing and is ready to start again when you want to resume working (usually within seconds).

Hibernate

The Hibernate function was intended primarily for laptop users (though available for Desktop Computers as well). This mode let you save much more power when not using your computer (as in saving battery). When you put the computer in Hibernate Mode, it stores the contents of your RAM (Services, clipboard etc.) to your hard-drive (hiberfile.sys) which on reboot is read back into the RAM which takes about a minute to be completed, but on the upside you do save more energy.

Hybrid Sleep

Hybrid sleep is both Sleep and Hibernate, primarily intended for Desktop Computers. Hybrid Sleep keeps the RAM alive (as in Sleep Mode) and stores the Content of your RAM to your Hard-Drive (in case of a power failure). It also stores any open documents before putting your computer into a low-power state which allows for a quick Reboot later on. When hybrid sleep is turned on, putting your computer into sleep automatically puts your computer into hybrid sleep.

Source: http://mintywhite.com/windows-7/7maintenance/hibernate-sleep-shutdown/

How to Attach Sticky-Note Reminders to Windows and Applications

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Some applications come with a boatload of keyboard shortcuts; these can make you very fast, but can be difficult to remember, especially if you customized some of them. What if you could have your own little cheat sheet that would pop up next to the application every time your ran it? Read on to see how you can make one.

We’re going to be using an excellent (and free) application called Stickies. If you don’t have it yet, go to the Stickies homepage, download it, and install it.

Creating Your First Cheat Sheet

The first thing we’re going to do is create the sticky note containing whatever info you want to have on hand. With Stickies running, hit Win+S. You should see a blank sticky note, much like the one below.

Yours may not have the current date and time in the caption – that’s a setting you can toggle, but we don’t need it for now.

Next, set the title for your sticky by clicking it and pressing Ctrl+Shift+T. You can also right-click the caption and select Set Title from the context menu.

Now that you’ve set the title (say, Total Commander Tips), fill in the text with whatever you’d like to remember. Use Ctrl + and Ctrl – to increase or decrease the font size, Ctrl+B for bold, Ctrl+I for italics. You can also select just a portion of the text to make it larger (think subheadings).

With your sticky note all ready, it’s now time to attach it to the window. Make sure the “target application” is running, so we’d have a window to attach the note to. Then, right-click the note’s caption and select Attach.

In the Attach Sticky window, locate your application in the list and click it. You can also toggle the box that says “Only if visible” to have the note visible only when the application window isn’t minimized.

The sticky note you created will now appear whenever you run your application, and disappear when you close the app. If you’d like to make the note always on top, click it and hit Ctrl+T. This way no other windows would cover it. That’s it – you now have a handy application-specific cheat-sheet.

Source: http://www.howtogeek.com/howto/45189/how-to-attach-sticky-note-reminders-to-windows-and-applications/

Secrets to Making the iPad Your Only Mobile PC

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There are a lot of reasons to rely on the Apple iPad as your sole, or primary mobile computing device. It is smaller, lighter, has longer battery life, and offers a more functional user interface than a notebook for staying productive on the go. iOS is a "mobile" OS, while Windows and Mac OS X are "desktop" operating systems--you do the math.

Still, out of the box the iPad is primarily geared for Web surfing, watching movies, playing music, and reading eBooks. It takes a little tweaking to get the right tools in place to optimize the iPad for use as a mobile computing platform for business, and not just for entertainment.

Typing: OK. This is not a tool, but the lack of a physical keyboard is a common jab made at the iPad when it comes to considering it as a productivity tool for business. Let me just say that the vast majority of you use the two-finger hunt and peck typing method anyway, and are not 100 word-per-minute typing speed demons. The iPad display sensitivity is the best I have seen on tablets and smartphones, and you should be able to hunt and peck your way around just as fast as you do at your desktop keyboard.

E-mail: E-mail is arguably the most important function of a mobile computing device. You can set your e-mail accounts up on the iPad, but if you want to make sure you get your messages on your desktop PC, as well as your iPad you need to make sure the account is set up properly. The iPad e-mail settings can be configured to delete the message from the server when it removed from the Inbox, after seven days, or never. You need to also make sure that your PC e-mail software is configured to leave the message on the server for a period of time as well so that both devices can get the message rather than one stealing it before the other.

A better option is to either use an Exchange e-mail account, or a webmail like Google's Gmail. With Exchange, the Inbox and folders on the iPad are kept in sync with the information on the Exchange Server and the PC, so there is no worry about the one device getting the message before another. With webmail, both the PC and the iPad would be accessing the same information on the Web so there is no reason for conflict.

Productivity: You need to be able to work with documents while on the go. You might not write the next great American novel on your iPad, but you at least need to be able to open and edit Microsoft Office files. Get the DocumentsToGo app to be able to view, edit, and create Microsoft Word, Excel, and PowerPoint files. DocumentsToGo also lets you view Adobe PDF and Apple iWork files, and it can view, edit, and sync with online file storage such as Box.net--which we will cover next.

Files: One of the hardest parts about having both a desktop PC and a tablet as a mobile device is syncing and managing files. For one thing, Apple's iOS doesn't provide any direct file and folder structure like a desktop OS, and even if it did, it would be a pain to remember to sync the files you might need while on the go. The better solution is to adopt an online file storage solution like Box.net or SugarSync. If you use online file storage by default from both your PC and your iPad, the files will always be available online to both platforms and you won't get stuck without access to a critical file.

Access the Network: Sometimes you might need to connect to applications or data hosted on company servers. Of course, you don't want to be connecting to company resources using the insecure connection at your local neighborhood Starbucks. A VPN client like Cisco AnyConnect can let you connect securely to the applications and data you need. To use the Cisco AnyConnect app, your company has to be have the right Cisco VPN tools and licensing in place. There are other VPN options, though, including the VPN tool built in to iOS.

Access Your PC: After all is said and done, there may still be some software that runs on your PC that you simply can't replace on your iPad. That is where remote desktop solutions come in. Apps like Citrix GoToMyPC and LogMeIn Ignition enable you to establish a remote connection back to the PC sitting at your desk, and work with the software and data on it as if you were sitting in front of it.

By installing the right apps and adopting a few simple practices, the iPad can be everything you need in a mobile computing platform. Even better, it can deliver in a tablet that is thin, and light, and has the battery endurance to last all day.

Source: http://www.pcworld.com/businesscenter/article/221486/secrets_to_making_the_ipad_your_only_mobile_pc.html#tk.hp_new