Hi All. Today my goal was to build on a previous post I wrote on Default Routing, RIP v2, and VMware Workstation NICs. The problem? I am running on AWS EC2 so nested virtualization options are lacking (Ravello Systems has …

Docker and Linux Networking: Custom Interfaces! Read more »

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Hi All. Today’s adventure touches on a common OpenStack Neutron theme: “I just created a VM. It’s running. It says it has an IP address. And I can’t ping it!!” Read on for tips on debugging Neutron DHCP Failures on …

Debugging Neutron DHCP Failures on OpenStack Read more »

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While researching distributed cloud storage we came up with these interesting points on storage throughput along with some great links for additional reading. Input/Output Per Second (IOPs). This is the most-commonly quoted measurement. For Amazon’s Relation Database Service (RDS) public …

What Makes Up Networked Storage Throughput? Read more »

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This is a quick entry on a particularly irritating CentOS peculiarity – after you clone a virtual machine, your /etc/sysconfig/network-scripts/ifcfg-eth0 no longer gets invoked. This is because CentOS can arbitrarily assign the physical network card to a different logic interface …

CentOS/RHEL and wrong Network Interface Read more »

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Anytime a non-routable network connection (any IPv4 network adapter that does *not* have a default gateway specified) is configured for a Windows Server 2008 server, the operating system will mark that network connection as an “Unidentified Network”. The downside? Windows …

Solve “Unidentified Network Error” for Windows Server 2008 Read more »

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