### Tek's Domain

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

# 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.

# 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.

# 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.

# AbuseIPDB Checking With Postfix

So if you’ve not heard, there’s this website called AbuseIPDB, which, no affiliation, is a website where webmasters can submit reports of abusive IP addresses, and then query those reports, either manually, or using their REST API. And this is how I did exactly that, to help cut down some of the spam on my email server. Let’s get started.

# How Git Efficiently Transmits Your Changes

So here’s a fun one. Have you ever noticed that even for huge changes to a repository, a git push only sends over a few kilobytes, maybe a few megabytes at most? If you’re familiar with the internals of git, you know that git stores an entire copy of the new file on commit. So how are these changes so small?

# BorgBackup: (TODO: Insert Borg Joke Here)

I was really fighting with my inner self to have a straightforward title for this one, but alas, resistance is futile.

BorgBackup, or, for short, just “Borg”, is a relatively fast (more on that later), efficient, secure, and authenticated way of backing up multiple devices either on a single network, or even across networks (you’ll see, again, later). This is currently what I use for backing up my stuff, and, well, it’s just cool, and definitely something you should take a look at.

# How Time Machine Works

For those unaware, Time Machine is the built-in backup application within macOS that will take incremental backups of your system to an Apple Time Capsule, or another local disk. Simple premise, almost as simple in execution. Let’s take it apart, shall we?

# CVS Is Dumb

So I was going back through my list of version control systems, and something hit me. CVS isn’t just kinda old and worn out, it’s downright backwards and dumb. Heck, CVS over the network is something that, in all seriousness, should not exist.

# Syncthing: Cluster Based, P2P File Synchronization

So I know I just got finished talking about Nextcloud, but just stick with me here, there’s only one more piece of software that I’m going to talk about: Syncthing.