johnsimcall

#!/bin/bash
shopt -s nullglob
for g in $(find /sys/kernel/iommu_groups/* -maxdepth 0 -type d | sort -V); do
    echo "IOMMU Group ${g##*/}:"
    for d in $g/devices/*; do
        echo -e "\t$(lspci -nns ${d##*/})"
    done;
done;

johnsimcall

# Simple No-IP Dynamic DNS Updater
#
# 1) Install DUC (Dynamic Update Client) and create the configuration file
#    as described on noip website https://my.noip.com/#!/dynamic-dns/duc
# 2) Save this file as /etc/systemd/system/noip.service
# 3) Tell systemd to rescan unit files `sudo systemctl daemon-reload`
# 4) Execute `sudo systemctl enable --now noip`
#
# TODO: Secure this unit file via `systemd-analyze security noip.service`
#       More info here https://www.redhat.com/sysadmin/mastering-systemd

johnsimcall

#!/usr/bin/env python
"""
Use byzanz to create a GIF screencast of a specific window.

Required tools:
sudo apt-get install byzanz x11-utils xdotool

A tip: use an extra-long duration (-d 100), record your shot, and use
gimp to shorten the duration of the last frame. You need to rename the layer
from "Frame 123 (100000 ms) (combine)" to "Frame 123 (1000 ms) (combine)".