Do you use Pingdom to monitor your server's uptime? Do you also use a firewall management tool to make it easier to manage iptables or another firewall, but don't allow your server to respond to ping for whatever reason? Pingdom makes a list of their current IP's available via an RSS feed on their site. But that list is separated by new lines, and some tools would rather you give them a comma-separated list. The wget and perl parts were found here.
We've all done it. When we needed to find something in a log, we just did a cat or a tail and piped it to grep. Maybe we told grep to also show us X lines before and after what it found. That works fine and dandy when you've got just one or two servers. But what about 30, or 300, or 3000?
This is really more of a note to myself. Unfortunately over time, I've been spoiled by Puppet and sometimes forget how to do things the manual way.
Once again this year, I'm instructing a few classes through Western Technology Center aimed at helping your succeed online. You're not expected to having any technical knowledge - just an ability to take notes and ask questions! You can leave your technical implementations of what you learn to whomever you have working for you for that sort of thing.
Each class is $35 and MUST be booked directly through the Western Technology Center - Weatherford Campus. For quick reference - here's the number:
One big complaint I hear from people used to Amazon AWS, HP Cloud, and other providers that let you store keypairs in their dashboard is that Rackspace lacks such a feature. While that feature is missing from the dashboard, its not impossible to deploy a server with your SSH keys pre-installed. In fact, it's easy if you're using their API.