WizGidget

May 25, 2011

Craigslist: the Modern Community Billboard

Filed under: Belton Journal, Info Bytes, Tips & Tricks — pmckinley @ 8:00 AM

I had three vintage motorcycles that I’ve always intended to fix up and ride again. All Yamaha’s, I had a ‘73 RD250 street bike, a ‘73 AT3 (a 125cc street/dirt bike) and a ‘77 DT100, also a street/dirt bike. The problem is they’ve been just sitting around for 20 years now because I haven’t had time to work on them. The older they get, the harder it is to find parts for them. There’s already some plastic parts that have degraded with time and need to be replaced. So, even though I’m sad to let them go, it’s time to find new homes for them.

I could have put them on E-bay, and I might have gotten a better price for them due to the auction nature, and then again maybe not. Good prices on ebay depend on having two or more people who want the item and bid against each other. That way the price floats up to what one or the other is willing to pay. If you only have one bidder, the price stays at whatever you set as the minimum bid. The problem with E-bay is that it’s more of a nationwide forum. So, if someone in New York decided they wanted one of the bikes, they’d have to figure in the transportation costs to get the motorcycle to them. I needed something more local.

In times past there might be community bulletin boards or billboards where citizens could post bills for public viewing. Even today there are often bulletin boards in some public places like grocery stores or coffee shops where people can post notices. There’s even such a place on the internet, it’s called “Craigslist”, and that’s where I decided to advertise my motorcycles.

Craigslist is a website where notices can be posted for free. There are various sub-sites that are location specific, for instance http://killeen.craigslist.org covers the Bell County area including Temple and Killeen. It has various category areas, such as Community, Personals, Housing, For Sale, Services, Jobs, and “Gigs” (short-term contract jobs). There’s even a “For Sale” subcategory for motorcycles.

The catch to Craiglist is that the ad isn’t going to be seen by people who don’t use the internet. Even among internet users, and despite Craigslist popularity, many people have not heard of or used Craigslist. Even with that caveat however there are enough people checking Craigslist that it’s fairly effective. I generally advertise my rental property on Craigslist, to good effect.

I posted the original ad May 11. As of today, May 24 (2 weeks later) I have two of the bikes sold, and the third is spoken for. One of the buyers is from Austin — outside Bell County but not too far away.

One last anecdote: last week I got a new iPhone 4 (paid for with motorcycle proceeds of course). It turns out that, you guessed it, “there’s an app for that”. There’s actually a Craigslist “app” for iPhone, which I’ve downloaded and tried out — it’s a good way to browse Craigslist postings while you’re sitting idle in your doctor’s waiting area. There is apparently an equivalent app for Android-based and probably other smartphones as well.

May 18, 2011

Wireless Security Revisited

Filed under: Belton Journal, Danger! Danger!, Tips & Tricks, Warnings — pmckinley @ 8:00 AM

Recently I worked with a local client who had a relatively new wireless router that had a “guest” network feature. It’s a bit like having two wireless routers in one, because it could offer two independent SSID’s (Service Set ID, the “name” of a particular wireless network). Why would you want to do this? Imagine having two rooms, an “inside” room with all your valuables in it, and an “outside” room that only has the bare minimums. You would probably only let trusted individuals like family and maybe close friends into the room with the valuables. Someone you don’t know well would be ushered into the “guest” room with only the bare essentials. That’s how the guest network works: it allows internet access, but keeps the guest separate from your important stuff.

It would be possible with this particular router to set the “inside” wireless network to use the normal WPA (Wireless Protected Access) security measures, while setting the “guest” network to be unsecured. This would certainly make it easy for guests in your home or business to access the internet — they could just connect without bothering to put in the WPA password.

Even though they’re kept separate from your “inside” network, it’s still not a good idea to run the “guest” network without security being set. The challenge, as I’ve written about in the past, is that you can have neighbors or drive-by hackers using your network to do nasty things on the internet using your resources, and looking to the authorities as if you’re the one doing it. There was an article recently (http://wifinetnews.com/archives/2011/04/false_kid_porno_raid_gets_media_play.html – click the link in the first paragraph which is a link to the original AP article) describing an arrest made by ICE (Immigration and Customs Enforcement) where the person they arrested was guilty only of leaving their wireless network unsecured. It isn’t a crime to leave your wireless unsecured, but it sure leaves you open to abuse by ICE, FBI, or other don’t-let-civil-rights-get-in-the-way-of-crime-fighting organizations. The person in question had gotten frustrated with setting the security on his new wireless router, and almost instantly became victim to his 20-something neighbor’s taste for child pornography.

My point of view isn’t so much that I want to avoid false arrest; I just don’t want to enable spammers, pornographers and other morally disabled people by giving them free access to the internet.

There was a time when wireless routers were unsecured out-of-the-box. It seems that the manufacturers have wised up to this being a problem, and many are now shipping wireless routers with security enabled, and in many cases with tools to make it easy to add new computers and other wireless devices.

Interestingly, when I was working with the aforementioned client with the “guest” network router, I had the toughest time understanding why his laptop couldn’t “see” his other computer on the network. I finally realized that he’d set his laptop to connect to the “guest” network instead of the “inside” network, effectively blocking network traffic between the two.

May 11, 2011

iPhone Road Trip

Filed under: Belton Journal, Info Bytes, News, Tips & Tricks — pmckinley @ 8:00 AM

Several weeks ago we upgraded spouse Ann’s cell phone to an iPhone 3GS. ATT had a pretty good deal on them at $50. Ann’s old phone was a smartphone running Windows Mobile, but she didn’t have the internet service on it, and frankly it was a bit difficult to use. Ann went through quite a bit of moaning and groaning (I hear “Errghh!” a lot) adjusting to the new phone, but after a couple weeks she agreed that it was easier to use and much more intuitive than her old phone. Alas, despite being a mechanical engineer, Ann is not the Techno-Geek that I am.

Then couple weeks ago, I needed to drive to Albuquerque to pick up some tooling (700 lbs worth!) for my backpack child carrier product. Spouse Ann volunteered to go with me, to share the driving load and keep me from getting too fatigued with all the long hours driving. It was my first opportunity to play with her new phone, which I did while she was driving. Her new phone has a 200Mb per month data plan; I’m afraid I burned 65% of her monthly allotment in the two days of the trip.

iPhones have an “app store” button you can use to find new programs to install on your iPhone. “Apps” they call them, short for “application”, hence the catchy contemporary cliché: “There’s an App for that.” Supposedly Apple vets the programs so that you don’t download anything nasty. When accessing the app store, you can browse programs by categories such as game, business, personal finance, etc. You can also search for keywords, or go through the list of the “top 25.” Some of the apps are free, many cost 99¢ or more. I’m a cheapskate so I went for the free apps.

One of the first apps I found probably saved us close to $15 just for this trip. The app is called “GasBuddy.” It allows you to find gas prices at stations nearby based on your current location, which the iPhone knows down to the inch it seems. One of the things it allowed me to do is to look ahead on our trip and find stations that had cheap gas, usually 15¢ a gallon cheaper than the more common stations. So, we could plan our stops based on where we could save money on gas, and know when there was a cheaper station that was a block or two off the highway, where we wouldn’t have known to go otherwise. Ann almost got a ticket when she missed the driveway to one out-of-the-way station and accidentally went the wrong way down a right-turn lane, but fortunately the Taylor county sheriff had a good sense of humor. Gas Buddy gives you “points” for reporting gas prices, not to mention you’re helping other people save money on gas, so after loading that app I was busy reporting prices for every station we passed.

Another free app I found helped us track the gas mileage we were getting in our little Ranger pickup truck. It would seem the Ranger was quite thirsty climbing the Sandia mountains with 700+ lbs in the back, but we gained some of that back on the long slope back down to Belton.

May 4, 2011

Backup Solutions, Part III

Filed under: Belton Journal, Info Bytes, Tips & Tricks — pmckinley @ 8:00 AM

When you set up your backups to run on a schedule, it can be pretty much of a set-and-forget thing. Just forgetting about it probably isn’t a good idea however, because things can go wrong with the backups, and it’d be really sad if you needed to restore a file and discovered that your backups weren’t running after all. Most of the backup solutions that come with external hard drives we’ve discussed don’t really do much in terms of notification either that the backup took place or whether there were errors. Even checking the status just gives a “successful” or “failed,” where “failed” may mean the backup didn’t work at all, or it may must mean that one or two files didn’t get backed up.

My recommendation would be to check on the backups occasionally to see whether they’re working properly. This can be a bit of a challenge, because as mentioned the backup software doesn’t report much. You have to look at the logs to find out whether there were errors and also look at the external drive to see whether backup files were actually created. Sometimes it’s a good idea to manually start off the backup just to make sure it runs.

One issue with backups that I often run across is Windows file locking. For instance, I tend to have Outlook running all the time. Unfortunately Outlook locks all it’s data files when it is running, which prevents the backup application from reading the files. There may be other applications you run that also lock their data files. The solution for that is to close Outlook or whatever application has locked files before the backups run.

Another issue is file permissions. I occasionally run across this when I’ve restored files back to my computer after having re-installed Windows — the ownership of the files may not have been set correctly when the files were restored. Generally I solve this problem by browsing to the folder containing the file with permissions errors, and “take ownership” of the folder, replacing owner on “subcontainers and objects”. You can do this (be careful!) by right-clicking on the folder, pick “Properties”. In the Properties dialog window, pick the Security tab, then click the Advanced button. In the Advanced Security dialog window, pick the Owner tab, and in the “Change owner to” pane, click on the name you log in as, check the “Replace owner” checkbox, then click OK. It may ask if you’re sure — be sure before you do something like this.

There are other backup software solutions online, which I haven’t tried. Lately you’ve probably seen ads for Mozy or Carbonite, which are online backup solutions. The online solutions generally have a monthly fee (a big minus for me), but they also depend on a broadband connection. Sorry Jack, your dialup connection won’t be practical. There’s also a number of software solutions available ranging from free to fairly inexpensive, just google “windows backup software” As always, be careful about downloading and installing software. You might want to do a google search on the name of the software to see if anything scary shows up.

Next week: more about online auctions as a follow-on to the Quibids article several weeks ago.

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