If you are new to Ubuntu, or even if you have been using it for awhile and are just looking at your running processes for the first time, you've probably just noticed something called Whoopsie.

What is this Whoopsie thing, sitting there, eating system resources?


How-To: Create a Swap file on Ubuntu 12.04

I've been using DigitalOcean for a few weeks now and have been very happy so far.  In fact I've only run into one issue, with MySQL crashing.  At first it looked like an issue with the specific  blogging platform I'm using, but the mysql log file quickly cleared that up.
InnoDB: Fatal error: cannot allocate memory for the buffer pool

Client.InvalidSecurity: Request has expired

Ported from old site.
Here's a quick note for anyone using Amazon EC2.
I use a script to automatically create EC2 snapshots a la ec2-create-snapshot ... this then sends me an email notifying me that the snapshots have been started.  Today I got a email that looked like:
Client.InvalidSecurity: Request has expired
Client.InvalidSecurity: Request has expired

Convert Putty .ppk file to OpenSSH Keys

    This is one I constantly forget and have to look up over and over, probably due to not having to do it very often. To convert and install keys from your Putty PPK to linux ( Ubuntu ).
  • Install putty with: sudo apt-get install putty
  • Create the public key file:
  • puttygen /path/to/puttykey.ppk -L > ~/.ssh/id_rsa.pub
  • Create the private key file:
  • puttygen /path/to/puttykey.ppk -O private-openssh -o ~/.ssh/id_rsa