Minicom to a Juniper SRX-220

Cluster computing requires a cluster of computers. For the past several years, I have been attempting to get work down without having a home cluster. This is no longer tenable, and I need to build my own.

One of the requirements for a home cluster is a progammable network device. I’ve purchased a second hand Junper SRC22.

Juniper SRX 220

Juniper SRX 220

Here are my configuration notes.
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Virtualization Setup for RH CSA study

While my company has wonderful resources to allow employees to study for our certifications, they are time limited to prevent waste. I find I’ve often kicked off the lab, only to get distracted with a reql-world-interrupt, and come back to find the lab has timed out. I like working on my own systems, and having my own servers to work on. As such, I’m setting up a complementary system to the corporate one for my own study.
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Reproducing an Open vSwitch Bridge Configuration

In the previous post, I described the setup for installing FreeIPA on a VM parallel to the undercloud VM setup by Tripleo Quickstart. The network on the undercloud VM has been setup up by Ironic and Neutron to listen on a network defined for the overcloud. I want to reproduce this on a second machine that is not enrolled in the undercloud. How can I reproduce the steps?

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Firewalld rule for Minecraft Server

My sons play Minecraft.  I recently decided to let them play head to head on the same server.  Aside from the financial aspect (I had to buy a second account) it was fairly straightforward running the server.  The one thing that tripped me up was a firewall rule that prevented a remote client machine from connecting to the server.  Fix was pretty simple.

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