David Sterry's Blog


Tuesday, August 29, 2006

Keyboard Magic

I enjoy educating people about computers and the internet and I thought I'd use this issue to teach you how to use the keyboard to be faster, more effective, and more comfortable in your computing. If you've seen the back of my business card, you know what I'm talking about. Which can you do faster? Type 100 characters or click 100 different spots on the screen?

For most it's the latter. That's why I'm going to go over 7 basic keyboard shortcuts in this issue. They'll speed up your computer use and even if you know them, I'd encourage you to read on. I'm sure you'll learn something. To qualify, these had to work in both Windows and Mac. They should work in every program you'll ever use. In the Mac world, substitute Command (the 4 leaf clover looking icon) for the Control key.

What's a fast way to copy some text or a file from one place to another? Click on the text or file, hold down the Ctrl key and hit c. That will copy it into the clipboard, hidden short-term memory that Windows and Mac have just for this purpose. The clipboard exists in RAM so its contents are lost when you reboot.

Then when you want to put that information in a new location you can paste it. The keyboard shortcut for paste is Ctrl-v. You can think of it as what comes logically after copying something, you paste it, so it's v, the key right next to c.

In some cases, you want to move some selected text or files from one place to another. That's the same as copying, pasting, then deleting the original items. Cut takes care of the first and last parts of that operation. Use Ctrl-x to cut what you want and put it right into the clipboard. Again, you can use Control and the v button together to paste to it's new location.

What if you want to quickly save or print a document? To save, use Ctrl-s. Voila, no need to find that little disk icon or pull down the File menu just to be sure your work is safe. Likewise, you use Ctrl-p to print. Once you press those keys that familiar print dialog box should show up asking how many copies to print and what printer to use.

Multitasking is a great feature of modern operating systems. It means you can have lots of documents and programs open at the same time. The problem that arises in multitasking is that you often need to change quickly between two programs (QuickBooks and your online bank window, for example). For this, hold down the Alt key and hit Tab. As long as you hold down Alt, the tab key will let you cycle through your open proggies. When you release, Alt, the switch will happen.

My final shortcut for this issue is Print Screen which can be seen on your keyboard as either PrtSc or Prnt Scrn on towards the right side of the top keyboard row. Most people don't know that this key does anything! It does. It takes a picture of the screen and places that picture into the clipboard. You can then open up Word or a photo editor and paste (Ctrl-V) the screen right in there. This is great when you see an error or something on the screen that just won't print properly.

Wednesday, August 23, 2006

What did I try, but GoogleWifi

Today, I connected to the newly-opened Google Wifi network. A few weeks before, after eating at the In-N Out at Rengstorff in Mountain View I spotted what I thought was a node on their mesh network. At that time, the access point was not broadcasting it's ssid and I couldn't get on even with a couple of good guesses. This time was different.

Connecting was super-simple. I turned on my laptop and associated with the only network around - 'GoogleWifi'. In seconds I had an IP address and started up my browser.

I was immediately taken to the Google Wifi login page where I was able to login with the same username I use with Google's other services Gmail and GoogleGroups. The password even filled itself in just like I was logging into Gmail.

Once connected, I was able to surf around easily enough. No big warning came up about the fact that my connection was unencrypted but let's face it, if you care about security and are using wireless, you'll be using a VPN. Google says they'll be offering something soon but for now I've read you can use iPig.

The other thing I did was Speakeasy's online speedtest. My download speed was 1.2 Megabit and the upload was 401 kilobit with ping times under 100 ms. What these specs mean is that watching online video, uploading files to your favorite website, or playing 3d multiplayer shoot-em-ups should all work well.

So my conclusion on this service is it's great. It's fast, free, and easy to use. It should be enough for most people for the next couple of years.

It'll be interesting to see how the network matures, if it gets faster, and of course more widespread. I won't be giving my cable connection up either way, but it's nice to know I can pull over and do a quick Google Maps check when I'm on my way to my next appointment in or near Mountain View.


References:

Output of IPCONFIG *****************************
Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : googlewifi.com
Description . . . . . . . . . . . : Wireless Adapter
Physical Address. . . . . . . . . : xx-xx-xx-xx-xx-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 64.9.237.xxx
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Default Gateway . . . . . . . . . : 64.9.232.1
DHCP Server . . . . . . . . . . . : 8.6.48.39
DNS Servers . . . . . . . . . . . : 64.9.224.36
64.9.224.37
Lease Obtained. . . . . . . . . . : Wednesday, August 23, 2006 12:49:52 PM
Lease Expires . . . . . . . . . . : Wednesday, August 23, 2006 1:19:52 PM

Tracert to Yahoo.com ***************************

Tracing route to yahoo.com [66.94.234.13]
over a maximum of 30 hops:

1 8 ms 9 ms 10 ms 64.9.229.166
2 7 ms 13 ms 5 ms 64.9.228.112
3 7 ms 7 ms 7 ms 8.6.48.5
4 9 ms 12 ms 10 ms 64.9.224.137
5 13 ms 12 ms 12 ms pax-edge-01.inet.qwest.net [72.165.114.253]
6 20 ms 9 ms 9 ms svl-core-02.inet.qwest.net [205.171.214.33]
7 9 ms 7 ms 12 ms pax-brdr-02.inet.qwest.net [205.171.205.30]
8 8 ms 8 ms 18 ms if-9-3.core3.PDI-PaloAlto.Teleglobe.net [207.45.196.85]
9 9 ms 9 ms 17 ms ix-6-2.core3.PDI-PaloAlto.Teleglobe.net [207.45.213.130]
10 11 ms 12 ms 16 ms ge-4-0-0-p440.msr1.scd.yahoo.com [216.115.106.201]
11 82 ms 16 ms 9 ms ten-1-3-bas1.scd.yahoo.com [66.218.82.217]
12 11 ms 84 ms 10 ms fifaworldcup.yahoo.net [66.94.234.13]

Trace complete.

Wednesday, August 09, 2006

Great Security for Free

With new threats appearing on a daily basis, how do you know you're protected enough? For that matter, maybe you're over protected with too much security software slowing your system down. A few years ago, most people got along fine without antivirus. Now many people have antivirus software, antispy software, anti-spam, popup blockers, and a firewall too. It's too much software and it's quite costly. That's why I wanted to highlight what's actually necessary and how you can get it for free.

The must-haves of the security world are antivirus, antispyware, and a firewall. Everything else is only recommended if you're having the specific problem they're designed to solve.

McAfee provides antivirus and antispyware both under the VirusScan tool while Norton has separate tools called Antivirus and Antispyware that are included in their Internet Security Suite. Finally AT&T's online protection provides both as separate tools called Antivirus and Antispy.

An updated copy of Windows XP at Service Pack 2 has a pretty good firewall so as long as you have your Automatic Updates running, you really don't need to buy a firewall. This is also true if you have a wireless router since that is a great firewall in itself. If you're running Windows 2000 or something earlier you need a firewall like McAfee or Norton's Personal Firewall. Kerio also provides a good free personal firewall.

And now the part you've all been waiting for... If you subscribe to Comcast Cable or AT&T DSL for high-speed access, you don't have to purchase or renew anything at all! These providers have partnered with McAfee and Computer Associates respectively to protect their customers. People are always surprised when I tell them this since it seems as if they are getting something for nothing but you have to understand that it helps them as much as it helps you.

AT&T and Comcast are concerned with providing high-speed access to millions of customers. Some users download movies and music all day and all night while most enjoy the high speed for downloading email and visiting the occasional webpage. When a computer is infected, it spends its time scanning for more machines to infect which uses the very same bandwidth that Comcast and AT&T are providing for a good user experience. So the thinking goes that if they can help their customers stay clean, customers are happy because they pay less out-of-pocket to protect their computers, they stay virus free, and Comcast and AT&T don't have to overbuild their networks.

If you have a high-speed connection, remember to get the software from your high speed internet provider. You'll save yourself a few bucks and the hassle of renewing a year or two from now. This also means you can skip security software when you're buying a new computer since both Comcast and AT&T will let you install their security software on as many computers as you own.

Excepting the aforementioned companies, I don't recommend buying any security software via download from the Internet. There are just far too many shenanigans involved with buying security software online. It may not work, it might be fly-by-night or it may be an escalating racket.

One other note is that some McAfee customers are receiving emails recommending they upgrade to a major new version of their software. For now, I do not recommend you do this. Simply ignore such emails until the smoke clears and their new software has had its bugs worked out.