Can’t Ping Server after Changing Router
After installing a new router, I was no longer able to ping my Hyper-V server. Why not? The router sits at the edge of the network—how could it affect pinging …
Get Asterisk to Use the G.729a Codec
I’m using Asterisk 1.8.5 under FreePBX 2.8.1.4. My endpoints (Polycom IP430 phone, SPA3102 ATA) and my ITSP all support the G.729a codec. I wanted to test audio quality using this …
Set Up Guest Wireless with Tomato
I’ve been learning Tomato router firmware. This open-source firmware can enhance a low-end wireless router with some pretty advanced features. One of my goals was to set up my wireless …
New Airline Ticket Virus Email
Today I received an email supposedly from American Airlines with an Zip file attachment: If you open the zip file, you’ll see what looks like a Word document: However if …
Set Up PostgreSQL for Rails 3.1
Heroku requires PostgreSQL for production and recommends it for development. Here is the process I worked out for installing PostgreSQL 8.4 and setting up a Rails 3.1 project. I’m working …
Install Rails 3.1 for the Rails Tutorial
I’ve been working through Michael Hartl’s Ruby on Rails Tutorial. I had some trouble in chapter 13 installing the released version of Rails 3.1.0, so I thought I would post …
APC “Battery Disconnected” May Mean Overheating
I got an email from APC PowerChute Business Edition that said simply “Battery Disconnected.” The connected UPS is an APC SmartUPS 1500 model DLA1500 (the Dell equivalent of an SUA1500). …
“We Are Going to Sue You” Virus Spam
A new spam email warns that you will be sued—for sending spam! Don’t worry about being sued, but do worry about opening the attachment that purports to be a scanned …
“We Are Going to Sue You” Virus Spam
A new spam email warns that you will be sued—for sending spam! Don’t worry about being sued, but do worry about opening the attachment that purports to be a scanned …
Office 365, Safe Senders List and You
Since moving to Office 365, I’ve been having trouble getting Outlook to treat mail from my own address as safe. Mail sent from my own address (e.g. from server monitoring …