While debugging an issue with OpenStack and floating ips, I ran into a strange issue where running tcpdump on the bridge interface on the network controller would cause packets to be forwarded successfully to a compute node, but if I … Continue reading
Here’s a simple way to get the XPath of an element on an HTML page in page. Right-click on the element on the web page, choose “Inspect Element” from the context-menu Right-click on the highlighted HTML line that appears in … Continue reading
Today I learned… In Windows, if a process listens on a port, spawns a child, then dies, then no other process can listen on that port until all of the children have been terminated. So, if you were running, say, … Continue reading
Test, test Testing out the new Byword functionality of posting to WordPress.
Another networking issue with an instance. Occasionally, a precise instance would come up but the networking wasn’t working, it wouldn’t get an IP address. Interestingly, this only seemed to happen when it was running on the head node. (Yes, we … Continue reading