New digs

Dave Farquhar Personal , ,

Tuesday was my first day on the new job. Who starts a new job the day before a holiday? Me. Hey, I tried to start one the day after Christmas one year. This is completely in character.

The new job uses the pieces of the CISSP I wasn’t using. It’s a stretch. Stretching is good. My new boss handed me a schedule for the next six weeks, with objectives for each week. It’s good to go in knowing what’s expected. He also said I’ll be doing a little Unix work. I was glad to hear that.

No matter what brand you buy, you’ll have carburetor trouble

Dave Farquhar Saving money ,

I bought a lawnmower this weekend for the other house. Of course they tried to get me to buy the $40 extended warranty to cover a $162 lawnmower. “You’ll have carburetor trouble no matter what brand you buy,” she said.

The bold print on the warranty paperwork said it excluded carburetor cleaning, so I don’t know what the point of that was. “I’ll pass,” I said. Read more

Ping sweep from Windows

Dave Farquhar Servers and Networking, Windows
Ping sweep from Windows

Here’s the best Windows command-line one-liner I’ve seen in a very long time: a ping sweep from Windows. Ping sweeps, also known as ping scans, are something every sysadmin and security analyst is likely to need at one point or another. You don’t need a special tool either. It can be as simple as a one-line batch file. Ping sweep scripts for Unix are common, but you won’t always have a Unix box available. You can almost always find a Windows box anywhere you go. That makes a Windows ping sweep useful.

If you’re not familiar with a ping sweep, read on. If you need to quickly scan your network to see if anyone’s added any new systems without telling you–something that only ever happens to me, right?–this tool will help you detect that, then head off those questions about why you haven’t patched and installed antivirus on that new server yet. Sometimes I run this on my home network too, to help me jog my memory.

Read more

How I bought a battery for my aged laptop

Dave Farquhar Hardware , , , ,

The aged battery in my aged Dell Inspiron E1505 held on better than I expected, but when I went to upgrade the machine–I upgraded it with two unsupported but perfectly functional 2 GB SODIMMs and then installed a Samsung 830 SSD–the battery went downhill fast.

I did the memory first, and the battery wasn’t happy with me. I literally went from about three hours of battery life to 20 minutes immediately after the change. Maybe it was a coincidence, and maybe not. Installing the SSD extended the battery life a little, but not enough to make it useful. It was time for a new battery.

There are pitfalls with buying batteries for aged hardware. Here’s how I negotiated them. Read more

Amiga on x86

Dave Farquhar Retro Computing, Software , ,

Re-implementing Amiga OS on cheap, commodity x86 hardware always made sense, so I’m not surprised that someone is doing it. Mostly I’m surprised that it took me this long to find it.

Am I interested? You bet. I’m sure I can find some PC hardware to run it on. I certainly don’t see myself using it as an everyday machine, but as something to tinker on, and something to have running next to my everyday machine, I can see it being fun and possibly even useful.