### Teknikal's_Domain

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

# 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 straight-forward 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.

# MacOS Bundles (and Packages) Explained

When is a file more than just a file? When it’s actually a folder that Finder is lying to you about. Every program, every kernel extension, and everything Time Machine creates on a network share is.. a bundle. Even the Photos Library file in ~/Photos… well you get the point. Let’s unpack these things, shall we?

# 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?

# Ah Yes, the SIMPLE Network Management Protocol

If that title isn’t a dead giveaway, I’m not happy. But yet I will somehow manage to vent my frustrations and explain something at the same time. Today: SNMP, or, “How to gather lots of stats on remote machines,” or, “Because you thought CVS was hard to wrap your head around”

# 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.

# You Don't Need a VPN

Really, you don’t. Actually, the entire concept of a “VPN” that most people know of isn’t even close to the actual definition. I refuse to call this one a rant, but know that this is me adding some facts.

# The Mirrorless Mode on DSLR Cameras

Note: I’m a Nikon person. Say what you wish, but my experience is with Nikon. Other manufacturers may vary.

Just about every modern DSLR has a few shooting modes. Single, continuous, quiet, and so on. Well, one of those modes turns the camera into, for usability purposes, a little mirrorless, without, well.. most of the benefits of a mirrorless. What am I talking about? Well, live view, what else?

So everyone knows a JPEG file by it’s extension, .jpg. But look at it with the file tool, and you get something like this:
findcover.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, baseline, precision 8, 1600x900, frames 3