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@joeywas
joeywas / BufferBloatBegone.md
Last active April 15, 2026 13:12
Buffer Bloat Begone by implementing CAKE queue on RouterOS 7.3.1 on Mikrotik RB750Gr3

Buffer Bloat

Come aboard the Buffer Bloat Begone Boat and let us set sail for seas of lower latency under load!

The journey begins

I became interested in buffer bloat after watching a podcast interview with David Taht. At a friend's suggestion, I purchased an inexpensive Mikrotik RB750Gr3 device, in order to implement a more robust and fully featured network router for our home network

Equipment

We obtain internet via a Wireless ISP over a 5Ghz link to a tower 18 miles away, with a plan for 20Mbps/5Mbps. In reality, it's more like 13Mbps/4Mbps. The WISP modem is connected to an RB750Gr3 aka HEx, running RouterOS 7.3.1. Internal DNS and DHCP for the home network is provided by a pihole connected directly to the router.

@the-spyke
the-spyke / pipewire.md
Last active March 11, 2026 18:34
Enable PipeWire on Ubuntu 22.04

Enable PipeWire on Ubuntu 22.04

This guide is only for original Ubuntu out-of-the-box packages. If you have added a custom PPA like pipewire-debian, you might get into conflicts.

Ubuntu 22.04 has PipeWire partially installed and enabled as it's used by browsers (WebRTC) for recoding the screeen under Wayland. We can enable remaining parts and use PipeWire for audio and Bluetooth instead of PulseAudio.

Starting from WirePlumber version 0.4.8 automatic Bluetooth profile switching (e.g. switching from A2DP to HSP/HFP when an application needs microphone access) is supported. Jammy (22.04) repos provide exactly version 0.4.8. So, we're good.

Based on Debian Wiki, but simplified for Ubuntu 22.04.

@nitred
nitred / optimal_mtu.md
Last active April 21, 2026 20:14
Wireguard Optimal MTU

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
@pojntfx
pojntfx / main.sh
Last active February 21, 2025 17:11
Flags for GPU-Accelerated Chrome on PopOS and Intel
sudo apt install -y intel-media-va-driver-non-free libva-drm2 libva-x11-2
# Now start Chrome with the following flags:
--ignore-gpu-blocklist
--enable-gpu-rasterization
--enable-zero-copy
--enable-features=VaapiVideoDecoder
--use-gl=desktop
--disable-gpu-driver-bug-workarounds
--disable-features=Vulkan
@primaryobjects
primaryobjects / tplink-archer-t4u.md
Last active February 14, 2026 06:42
Steps to Install the TP-Link Archer T4U Plus AC1300 USB WiFi Adapter on Linux Mint
@esummers
esummers / Samba Domain Controller.md
Last active November 14, 2024 07:53
Samba Domain Controller on a Raspberry Pi

Running a Samba 4.x Domain Controller on a Raspberry Pi

If you don't have a Windows server available for testing, a Raspberry Pi makes a great test environment. It works with Mac AD Binding, Apple Enterprise Connect, and the Mac Kerberos SSO Extension.

Configuring a Domain Controller on Rasbian or other Debian-based Linux distribution:

  1. Install Rasbian. Use NOOBS if you are new to Raspberry Pi at https://www.raspberrypi.org/downloads/. Optionally enable SSH or VNC support in Raspbian settings menu to remote in to the machine.

  2. Install Samba and related packages. Some packages may launch setup tools. Skip through the Kerberos configuration with defaults. We will be deleting the Kerberos configuration in a later step.

@syldrathecat
syldrathecat / amd_cpufreq_patch.diff
Created August 7, 2020 11:24
zen linux shcheduler hacks
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 883da0abf779..c845d3f7dc95 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1012,8 +1012,7 @@ config SCHED_MC
config SCHED_MC_PRIO
bool "CPU core priorities scheduler support"
- depends on SCHED_MC && CPU_SUP_INTEL
- select X86_INTEL_PSTATE
@debovema
debovema / .gitignore
Last active February 19, 2024 20:05
OpenWrt custom firmware for Xiaomi Mi Router 3g (with FPU emulator enabled, custom packages preinstalled, AzireVPN preconfigured)
openwrt/
@rfaita
rfaita / wsl2.md
Last active October 1, 2023 04:03
Installing WSL2 on Windows 10

Install and configure WSL2 on windows 10

Install WSL2

Using the following link here install the WSL 2 on your windows 10.

Install X-Server

VcXsrv seems to the best choice for X-Server in Windows

@tuan
tuan / openvpn-azure-steps.md
Last active December 27, 2021 16:25
OpenVPN + Pihole on Azure

Create VM

  1. Azure > Marketplace > Ubuntu

Configure VM

  1. Autoshutdown Disabled
  2. Networking: Add inbound rule for port 1194 (TCP and UDP)

Install OpenVPN

wget https://git.io/vpn -O openvpn-install.sh