In this question, August Vrubel has some C code that sets up a tun interface and then injects a packet, but the packet seemed to disappear into the ether. In this post, I’d like to take a slightly extended look at my answer because I think it’s a great opportunity for learning a bit more about performing network diagnostics.
The original code looked like this:
c original sendpacket.c #include <arpa/inet.h> #include <fcntl.
My internet service provider (FIOS) doesn’t yet (sad face) offer IPv6 capable service, so I’ve set up an IPv6 tunnel using the Hurricane Electric tunnel broker. I want to provide IPv6 connectivity to multiple systems in my house, but not to all systems in my house 1. In order to meet those requirements, I’m going to set up the tunnel on the router, and then expose connectivity over an IPv6-only VLAN.
In today’s post, we look at KeyOxide, a service that allows you to cryptographically assert ownership of online resources using your GPG key. Some aspects of the service are less than obvious; in response to some questions I saw on Mastodon I though I would put together a short guide to making use of the service.
We’re going to look at the following high-level tasks:
Create a GPG key
Publish the GPG key
Hello, future me. This is for you next time you want to do this.
When setting up the CI for a project I will sometimes end up with a tremendous clutter of workflow runs. Sometimes they have embarrassing mistakes. Who wants to show that to people? I was trying to figure out how to bulk delete workflow runs from the CLI, and I came up with something that works:
gh run list –json databaseId -q '.
We are working with an application that produces resource utilization reports for clients of our OpenShift-based cloud environments. The developers working with the application have been reporting mysterious issues concerning connection timeouts between the application and the database (a MariaDB instance). For a long time we had only high-level verbal descriptions of the problem (“I’m seeing a lot of connection timeouts!”) and a variety of unsubstantiated theories (from multiple sources) about the cause.
