### Teknikal's_Domain

#<NTA:NnT:SSrgS:H6.6-198:W200-90.72:CBWg>

# Giving My Sitemap Some Style

Now I know I’ve talked about sitemap.xml before, but quick summary: that’s an XML file that has a list of every (public) URL on your site, to make it easier for crawlers to index your entire site since that list (or, map) lays it out. Well as an XML file, it can take XML style sheets, in a format called XSLT, short for XSL Transformations, short for eXtensible Stylesheet Language. Yes, it’s XML all the way down. But, if you’ve looked at my sitemap, you’ll see I’ve gone and done it. This is how.

# Graylog, and the Syslog Protocol, Explained

So if you’ve tried enterprise log management systems, you’ve likely heard of Syslog. If you haven’t, Syslog, is, well, a protocol designed to allow multiple hosts to send their system logs over the network to some other server where they can be analyzed and stored. It’s another one of those weird UDP protocols, and this one is actually stupid simple, even in both of the commonly used forms! Oh, we’ll also cover the one piece of software that I use that handles Syslog — Graylog, which by itself is also really cool.

# New Feature: Post Labels

Now you might not see this too much since I plan to use the feature sparingly, categories and tags are both capable of sorting everything to a satisfactory level, but I’m using this thing that I just made to add extra little labels, which have a few cool uses.

# Self Hosted Password Manager: vaultwarden

Updated May 1st, 2020

You familiar with Bitwarden? It’s another one of those password manager services that comes as a browser extension or standalone program, and allows for things like storing TOTP keys, generating new, secure passwords, and all that fun stuff. Except unlike others that I’ve seen, it has one difference: You can self-host an instance. Though, their self-hosted options look a little lacking unless you want to give them money. Well as it happens with an open sourced project, someone decided to create a Bitwarden API compatible server, thus creating vaultwarden. And this is why it’s cool.

# Email Filtering With Sieve

Sieve, defined in RFC 5228 , is a programming language constructed for the express purpose of filtering email messages. And, on a Sieve-enabled server, it can do a lot of work.

# Shortening My URLs With tekdmn.me

Has anyone noticed that I’ve been giving out URLs of the form tekdmn.me and not teknikaldomain.me? Well, not only did I buy another domain that’s just a shorter version of this one, but it’s also, at the moment, the singular domain I have that’s 100% serverless. How? Cloudflare, obviously.

# Delta Chat: Instant Messaging Using... Email?

So this is a fun one, and likely a long one. Come, let’s talk about the unlikely backing for a decentralized, privacy-focused communications platform, the very weird ways in which IMAP can be used, and a hopefully final wrap-up to my streak of rambling about PGP.

# Using Cloudflare's HTTP/2 Server Push

For those unaware, when using Cloudflare to proxy your site, HTTP/2 support is usually on by default, and highly recommended, and you can also enable HTTP/3 too. But, for a while I thought that Cloudflare’s HTTP/2 would rob you of one of the really cool and touted features of HTTP/2: the server push. Well, as it turns out, that’s completely possible. Let’s dive in.