| # /etc/udev/rules.d/99-usb-serial.rules | |
| # udevadm info --attribute-walk -n /dev/ttyUSB0 |grep serial (can be used to get serial number) | |
| # udevadm control --reload-rules (reload rules) | |
| # udevadm trigger (re-add all devices) | |
| # see https://wiki.archlinux.org/index.php/Bus_pirate | |
| # for some reason, ATTRS{bInterfaceNumber}=="00" is not working, hence the use of ENV{} | |
| # single USB/serial adapters | |
| SUBSYSTEM=="tty", ATTRS{serial}=="A900TUKZ", SYMLINK+="ttyUSB_bub_1" | |
| SUBSYSTEM=="tty", ATTRS{serial}=="A700fdWb", SYMLINK+="ttyUSB_bub_2" |
| brew tap homebrew/cask-fonts | |
| brew install --cask font-cascadia-code | |
| brew install --cask font-cascadia-code-pl | |
| brew install --cask font-cascadia-mono | |
| brew install --cask font-cascadia-mono-pl |
| { | |
| description = "A nixos cloudinit base image without nixos-infect"; | |
| inputs = { | |
| nixpkgs.url = "github:nixos/nixpkgs"; | |
| }; | |
| outputs = { self, nixpkgs }: | |
| let | |
| system = "x86_64-linux"; |
| f(). | |
| Str = fun(X) -> io_lib:format("~p", [X]) end. | |
| Percent = fun | |
| (A, 0) -> "100%"; | |
| (A, B) -> [Str(round(100*A/B)), "%"] | |
| end. | |
| Get = fun |
This note describes how to connect two networks/devices/VMs over public network using Wireguard with Layer 2 support (ARP, IPv6 link-local, etc).
This can also be achieved using SSH and its "tap" tunnel, however, it does not provide the same level of latency and bandwidth as full-blown VPN such as Wireguard.
In addition, this note describes how to tunnel Wireguard over TCP connection. This may be of use if you encounter firewall in-between so, for instance, you can use TCP port 443 only.
| #!/usr/bin/env bash | |
| #Install brew and qemu + cloud init metadata dependencies | |
| /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)" | |
| brew install qemu | |
| brew install cdrtools | |
| rm -rf /tmp/ubuntuqemuboot | |
| #download Ubuntu 20.04 Cloud Image and resize to 30 Gigs | |
| mkdir -p /tmp/ubuntuqemuboot/images |
Improvements, suggestions & fixes are welcome!
Captive portals can be a pain. Here's an opinionated and no-doubt entirely imperfect guide to setting one up for a WiFi access point on Ubuntu (tested on 20+), utilising Network Manager, DNSMasq, HA Proxy and (optionally) Let's Encrypt for a secure, locally hosted landing page.
_Note: This setup was originally designed for an offline WLAN, providing access to a small number of locally hosted domains ... think the WiFi media portal on a flight or boat. If you are looking to provide internet access behind a captive portal then this guide won't get you all the way there. That said, many routers have this capability built in, as do any number of open source router firmware solutions. So you probably don't need to roll your own. If you'd like to try anyway, Ha Proxy Stick Tables would probably come in handy. Very happy to update the guide with any p
| # | |
| # Usage: | |
| # elixir <this_script_name.exs> 1.7.2 | |
| # | |
| # The script grabs a Phoenix version and places it | |
| # under `phoenix/<version>` subfolder. It attempts to call | |
| # a diff GUI, if there's another version found in `phoenix`. | |
| # It picks the closest older version, if more than one found. | |
| # | |
| # Feel free to modify PhoenixCompareConfig |
| #!/bin/bash | |
| # Script designed to upgrade PNETLab from almost any version to NEW_PNETLAB_VERSION version | |
| # Requirement: Not having PNETLab 6.x installed for being able to upgrade to NEW_PNETLAB_VERSION | |
| # This script avoids to make this upgrade process twice | |
| # CONSTANTS | |
| NEW_PNETLAB_VERSION=5.3.11 | |
| GREEN='\033[32m' | |
| NO_COLOR='\033[0m' |
asdf lives in https://github.com/asdf-vm/asdf
Follow its installation instructions, which at the moment of writing were:
cd