Gaston Morixe gastonmorixe

About

I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

On WG server, I started an iperf3 server
On WG peer, I wrote a script that does the following:
- wg-quick down wg0
Edit MTU in the /etc/wireguard/wg0.conf file

Mac Network Commands Cheat Sheet

After writing up the presentation for MacSysAdmin in Sweden, I decided to go ahead and throw these into a quick cheat sheet for anyone who’d like to have them all in one place. Good luck out there, and stay salty.

Get an ip address for en0:

ipconfig getifaddr en0

Same thing, but setting and echoing a variable:

Disable Device Enrollment Notification on Mac.md

Restart the Mac in Recovery Mode by holding `Comment-R` during restart

Open Terminal in the recovery screen and type

csrutil disable

	#!/bin/zsh
	# WARNING! The script is meant to show how and what can be disabled. Don’t use it as it is, adapt it to your needs.
	# Credit: Original idea and script disable.sh by pwnsdx https://gist.github.com/pwnsdx/d87b034c4c0210b988040ad2f85a68d3
	# Disabling unwanted services on macOS Big Sur (11), macOS Monterey (12), macOS Ventura (13), macOS Sonoma (14) and macOS Sequoia (15)
	# Disabling SIP is required ("csrutil disable" from Terminal in Recovery)
	# Modifications are written in /private/var/db/com.apple.xpc.launchd/ disabled.plist, disabled.501.plist
	# To revert, delete /private/var/db/com.apple.xpc.launchd/ disabled.plist and disabled.501.plist and reboot; sudo rm -r /private/var/db/com.apple.xpc.launchd/*


	# user

	//
	// CGWindowDictionary.swift
	//
	// Created by Stephan Casas on 11/2/23.
	//

	import Foundation
	import CoreGraphics
	import AppKit

	import http.client
	import http.cookies
	import json
	import base64
	import hashlib
	from cryptography.hazmat.primitives import serialization
	from cryptography.hazmat.primitives.asymmetric import x25519
	from cryptography.hazmat.primitives.asymmetric import ec
	from cryptography.hazmat.primitives import hashes

	#!/bin/bash

	# I have managed to map out some undesirable daemons and agents. Most of these
	# can be disabled without too much consequence.

	## Daemons
	# com.apple.analyticsd - Anonymized application analytics daemon
	# com.apple.appleseed.fbahelperd - Feedback Assistant Helper Daemon
	# com.apple.awacsd - Apple Wide Area Connectivity Service Daemon
	# com.apple.backupd - Apple TimeMachine service

	// TODO: setting window transforms (or mission control) flattens layers...
	// TODO: Mask image vs path (layer)?

	/// `NSVisualEffectView`:
	///
	/// A view that adds translucency and vibrancy effects to the views in your interface.
	/// When you want views to be more prominent in your interface, place them in a
	/// backdrop view. The backdrop view is partially transparent, allowing some of
	/// the underlying content to show through. Typically, you use a backdrop view
	/// to blur background content, instead of obscuring it completely. It can also


	- (NSImage *)_cornerMask
	{
	CGFloat radius = 4.0;
	CGFloat dimension = 2 * radius + 1;
	NSSize size = NSMakeSize(dimension, dimension);
	NSImage *image = [NSImage imageWithSize:size flipped:NO drawingHandler:^BOOL(NSRect dstRect) {
	NSBezierPath *bezierPath = [NSBezierPath bezierPathWithRoundedRect:dstRect xRadius:radius yRadius:radius];
	[[NSColor blackColor] set];
	[bezierPath fill];