Jude Pereira judepereira

fw1 — Debian 13 DNS-aware firewall/router

Status: Running · OS: Debian 13 (Trixie) · Network manager: systemd-networkd

Purpose: IPv4 NAT, native IPv6 routing, DHCP, NextDNS, and DNS-populated nftables allowlists.
Current policy: DNS authorizes new connections for one hour; established connections continue through conntrack.
Removed: The Python DNS-log timeout-refresh service. There is no per-lookup timer renewal daemon.
Not yet configured: Dedicated logging for denied forwarding packets.

	private static final ObjectMapper OM = new ObjectMapper();

	@Benchmark
	public void jsonStringSerialization(final Blackhole blackhole) throws Exception {
	byte[] obj = OM.writeValueAsBytes(randomString());
	blackhole.consume(new String(obj, 1, obj.length - 2, StandardCharsets.UTF_8));
	}

	@Benchmark
	public void jsonStringManual(final Blackhole blackhole) {

	private static final ObjectMapper OM = new ObjectMapper();
	private static final String STR = "hello world - the quick brown fox jumps over "
	+ "the lazy dog\r\n\r\nand here's "
	+ "a random slash\\, and some \"s";

	@Benchmark
	public void jsonStringSerialization(final Blackhole blackhole) throws Exception {
	byte[] obj = OM.writeValueAsBytes(STR);
	blackhole.consume(new String(obj, 1, obj.length - 2, StandardCharsets.UTF_8));
	}

	private static final ObjectMapper OM = new ObjectMapper();

	public static String escapeString(Object o) {
	if (o == null) {
	return null;
	}
	try {
	// The string is automatically quoted. Therefore, return a new string that
	// doesn't contain those quotes (since the caller appends quotes themselves).
	val bytes = OM.writeValueAsBytes(o.toString());

	public static String escapeString(Object o) {
	if (o == null) {
	return null;
	}
	String str = o.toString();
	if (str.contains("\\")) {
	str = str.replace("\\", "\\\\");
	}
	if (str.contains("\"")) {
	str = str.replace("\"", "\\\"");

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>Label</key>
	<string>com.judepereira.keyremapping</string>
	<key>ProgramArguments</key>
	<array>
	<string>/usr/bin/hidutil</string>
	<string>property</string>

	class State {
	public static boolean someState;
	}

	class GoodTest {

	@Test
	public void checkState() {
	assertFalse(State.someState);
	}

	MyStubbornAPIInterface actualInstance = ... // Create it however you'd create your original instance.
	MyStubbornAPIInterface proxiedInstance = (MyStubbornAPIInterface) Proxy.newProxyInstance(actualInstance.getClass().getClassLoader(),
	new Class[]{MyStubbornAPIInterface.class}, (proxy, method, args) -> {
	while (true) {
	try {
	return method.invoke(actualInstance, args);
	} catch (MyThrottlingException e) {
	try {
	Thread.sleep(ThreadLocalRandom.current().nextInt(1, 5) * 1000L);
	} catch (InterruptedException e) {

	#!/bin/bash

	# Wrapper script for sending OTA updates to your ESP8266 running NodeMCU.
	# See https://judepereira.com/blog/sending-ota-updates-over-wifi-to-your-esp8266/

	HOST=192.168.178.25
	PORT=8080

	for i in "$@"; do
	FILE=$i

	-- Send OTA updates to remotely update lua scripts on your ESP8266.
	--
	-- LICENCE: http://opensource.org/licenses/MIT
	-- Created by Jude Pereira <contact@judepereira.com>
	-- See https://judepereira.com/blog/sending-ota-updates-over-wifi-to-your-esp8266/

	srv = net.createServer(net.TCP)

	current_file_name = nil