The Silicon Underground

Home » Page 234

Lenovo and Best Buy team up for a $149 laptop for 2015

Dave Farquhar Hardware November 20, 2015March 30, 2024best buy, hp, intel, Intel Atom, keyboard shortcuts, lenovo, Lenovo Ideapad, Microsoft Office, usb port, Windows 10, windows 7, x86

Cheap laptops are nothing new this time of year–they’ve been practically a holiday tradition since 2002 when Sotec released a decent laptop for $900, which was jaw-droppingly low for the time–but this year, Best Buy is selling a Lenovo Ideapad 100s for $149.99, which, while not jaw-droppingly low given the number of $199 laptops that were available last year, is still the cheapest name-brand laptop I’ve seen. Note: Best Buy has since raised the price to $199, but Ebay has limited stock of the same item for $129.

I’ve seen some reviews, but there is one thing I haven’t seen anyone bring up yet: This is a netbook in every way, except I think we’re supposed to call them cloudbooks now. So keep that in mind. The machine is probably worth $149.99, but it made some compromises to reach that price point.

Available diameters of tubular O and O27 track

Dave Farquhar Toy trains November 19, 2015October 22, 20221980s, lionel, lionel train, marx, Marx O34, marx trains, o gauge, o27, RADIUS, sakai, tubular track

A frequent question, especially for those who are just discovering or rediscovering vintage Lionel and Marx trains is what sizes of track are (or were) available, and how many pieces come to a circle.

Unlike other scales, Lionel marketed its track by diameter, not radius. As you undoubtedly remember from geometry class, radius is the distance from the center of the circle to the edge, while diameter is the distance from edge to edge. So a circle of O27 track is approximately 27 inches wide. O27 track stands about 7/16 of an inch tall, while higher end O gauge (also sometimes called O31) track stands about a quarter inch taller, at about 11/16 of an inch tall.

How to cut corners on baseboards by not cutting corners

Dave Farquhar Landlording November 18, 2015December 6, 2015baseboard, baseboards, caulk, Stain

Cutting baseboards can be tricky. Rooms are rarely perfectly square, so just cutting baseboards at 45-degree angles on the ends doesn’t usually yield a perfect corner. So instead you usually have to fit the pieces into the corner, trace the outline of one onto the other, then trace the angle onto the top and bottom, then cut the outline with a coping saw–at the correct angle.

But what if I told you that you didn’t have to?

How to mark vinyl tile on the front

Dave Farquhar DIY, Landlording November 17, 2015April 3, 2021

Sometimes you need to mark vinyl tile on the front before you cut it.

Here’s the scenario. You’re cutting a vinyl tile to fit an intricate spot on the floor. And you need to measure it with the top showing. So you measure it and draw your pattern. Then you start to cut, and you find out the hard way that the pencil or pen marks wipe away. And they’ll probably disappear before you finish cutting.

Using Splunk to find bad guys in your network

Dave Farquhar security November 16, 2015April 23, 2017computer security, Log Logic, malware, splunk

I’ve covered event logging before, but the excellent site Malware Archaelogy has some cheat sheets that include Splunk queries you can use to find incidents or malware operating in your network, or even use to create dashboards so you can keep an eye on things. Malware Archaelogy’s list of events to log is a bit different from what I covered before, but there’s a considerable amount of overlap. You probably want what they recommend and what anyone else is recommending.

The key to corporate computer security is situational awareness, and I don’t think anyone sells a blinky box that provides enough of that. But you can build it with Splunk.

And, for what it’s worth, I do recommend Splunk. I’ve used Log Logic in the past, and its searches often take days to finish, which means Log Logic is so slow that by the time you find anything in it, it’s likely to be too late. Splunk isn’t quite real-time, but you can find stuff in a few minutes.

Replace Lionel O gauge track pins with nails

Dave Farquhar Toy trains November 13, 2015September 15, 2016conductivity, lionel, o gauge

Here’s a question that came in recently: Can you replace Lionel O gauge track pins with nails?

Yes, but with a caveat. Read more

Why were early computers beige?

Dave Farquhar Retro Computing November 12, 2015September 5, 20191980s, 1990s, apple, apple ii, atari, atari st, Benjamin Moore, Bennington Gray, commodore, commodore 64, IBM

It’s a common question: Why were early computers beige? In some ways it seems a curious color choice today.

What to do if vinyl won’t stick

Dave Farquhar DIY November 11, 2015April 1, 2023

As I write this, I’m installing self-stick vinyl tiles in an old basement as part of a project to modernize a ’70s man cave. It’s possible to run into a few problems when installing vinyl, so I thought I’d run through them, along with the solutions. Here’s what to do if vinyl won’t stick.

Getting vinyl tiles to stick to the floor is mostly a matter of having a clean, dry floor, using the right primer, and using enough heat and pressure. Good prep work and the right tools and technique makes a bigger difference than the cost of the tile.

Using a computer power cord on a garbage disposal

Dave Farquhar DIY, Landlording November 10, 2015November 1, 2017amperage, amps, home improvement, hp, InSinkErator, power cord, red wire

When I replace garbage disposals, I prefer to use a power cord rather than hardwire them straight into the wall. The thing is, I don’t like paying $12 for the official power cord, which is chintzy looking and, frankly, looks under spec’ed. Instead, I prefer to use a computer power cord on a garbage disposal.

The label on a 1/3 HP Insinkerator Badger says it’s rated for 5.8 amps at 125 volts. I found a computer power cord in my stash that was rated for 10 amps at 125 volts. It’s overkill, but when it comes to electricity, overkill is good. Best of all, it let me repurpose something I’d already paid for and was probably never going to use.

I got hacked. I did it to teach you a lesson, and I’m sure you believe it.

Dave Farquhar security November 9, 2015November 8, 2015apache, PHP, vulnerability

The other day, this showed up in my e-mail:

A file change was detected on your system for site URL https://dfarq.homeip.net. Scan was generated on Tuesday, November 3rd, 2015 at 5:25 am

A summary of the scan results is shown below:

The following files were removed from your host:

/var/www/wp-content/cache/supercache/dfarq.homeip.net/wordpress/index.html (modified on: 2015-11-03 03:23:52)
======================================

The following files were changed on your host:

/var/www/wp-content/themes/twentyfourteen/functions.php (modified on: 2015-08-19 22:24:04)
/var/www/wp-content/themes/twentyfourteen/header.php (modified on: 2015-08-19 22:24:04)
======================================

Login to your site to view the scan details.

I didn’t make those changes. Fortunately fixing it when changes appear in functions.php and header.php that you didn’t make is pretty easy.