I’ve been building a home cluster for investigative work.  Here’s what I have so far.
Physical Home Cluster Setup
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Category Archives: Networking
Command line VPN connection
I need to connect to my office via VPN. Fedora has a point and click interface, but I am trying to minimize mouse usage. So, instead I have a small bash function that does it for me.
I has an OTP that I need to enter in, so I have nmcli prompt me.
$ cat `which vpn_up ` nmcli --ask c up "Raleigh (RDU2)" |
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
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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Bonding two Ethernet devices
In my continued investigations of networking stuff, I came across the question “How do you bond two ethernet devices together?”  While I did this years ago on RHEL3, I have pretty much forgotten how, so I decided to research and relearn this.
Enabling an Ethernet connection on Centos7
I recently created a new Centos VM. When it booted, I noticed it did not have a working ethernet connection. So, I started playing with things, and got it working. Here are my notes:
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?
Continue readingA TFTP Server in Rust
Rust is Pedantic. I’m Pedantic. We get along wonderfully. Since HTTP is way too overdone, I wanted to try something at the Byte twiddling level. I got a very, very basic TFTP server to run and fetch a larger binary file without corrupting it. Time to celebrate with a bragpost.
Continue readingUsing Ansible to add a NetworkManager connection
The Virtual Machine has two interfaces, but only one is connected to a network. How can I connect the second one?
Creating a new Network for a dual NIC VM
I need a second network for testing a packstack deployment. Here is what I did to create it, and then to boot a new VM connected to both networks.
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