This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.
Let’s begin.
First of all, there are some concepts that one must unlearn from ipv4:
Concept 1
A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)
I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.
A functor is something that supports map.
| #!/bin/sh | |
| git rebase --interactive --autosquash \ | |
| $(git merge-base $(git symbolic-ref --short HEAD) master) |
| /** | |
| * Fancy ID generator that creates 20-character string identifiers with the following properties: | |
| * | |
| * 1. They're based on timestamp so that they sort *after* any existing ids. | |
| * 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs. | |
| * 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly). | |
| * 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the | |
| * latter ones will sort after the former ones. We do this by using the previous random bits | |
| * but "incrementing" them by 1 (only in the case of a timestamp collision). | |
| */ |
| Philosophical: | |
| * writing lines of code is one of the least valuable things I can do | |
| * cultivate your impatience | |
| * reject the status quo, unless we can re-derive it from first-principles | |
| * engineers imprint on the first languages (techniuqes, frameworks or technology) that we find success with (unconsciously seen as caregivers, which we defend w/o always knowing why) | |
| * we tend to overvalue the familiar/known; we tend to undervalue the unfamiliar/unknown, this interferes with our receptiveness to new ideas and personal growth | |
| * we're 90% composed of bad habits; many of our best habits become bad as time passes; this allows us to filter for the fundamental; the great | |
| * make doing the right thing easier than any other thing, or we will fail to achieve greatness, or break bad habits | |
| * be conscious, be intentional | |
| * "is this the highest we can aim?" (I prefer this over "is this the best we can do", the former is aspirational, the latter is judgemental) |
| // 1. Go to page https://www.linkedin.com/settings/email-frequency | |
| // 2. You may need to login | |
| // 3. Open JS console | |
| // ([How to?](http://webmasters.stackexchange.com/questions/8525/how-to-open-the-javascript-console-in-different-browsers)) | |
| // 4. Copy the following code in and execute | |
| // 5. No more emails | |
| // | |
| // Bookmarklet version: | |
| // http://chengyin.github.io/linkedin-unsubscribed/ |
Prerequisites:
Software components used:
| package main | |
| import ( | |
| "fmt" | |
| "io" | |
| "os" | |
| "time" | |
| "github.com/dustin/go-humanize" | |
| ) |
