ssrlive

# 为虚拟网络接口 utun0 配置 IP 地址 10.0.0.33 和子网掩码 255.255.255.0 网关地址 10.0.0.1
sudo ifconfig utun0 10.0.0.33 10.0.0.1 netmask 255.255.255.0

# 配置目标地址是网段 192.168.1.0/24 的流量走 10.0.0.1 网关
sudo route add 192.168.1.0/24 10.0.0.1

# 将 6.11.20.10 这个单一地址(因为掩码是 32)路由到 192.168.4.1 这个网关
sudo route add 6.11.20.10/32 192.168.4.1

xird

I use PostgreSQL via the psql client. If you use a different client (eg. pgAdmin, etc.), I don't know how much will translate over.

One nice difference between psql and mysql (cli) is that if you press CTRL+C, it won't exit the client.

User administration

Login as superuser (via shell)

psql -U postgres

cant89

const useFetch = (service) => {
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState();
  const [data, setData] = useState();

  const fetchAPI = useCallback(async () => {
    try {
      const res = await fetch(service);
      const json = await res.json();
      setData(json);

TransparentLC

#!/usr/bin/env pwsh

# https://stackoverflow.com/questions/8761888/capturing-standard-out-and-error-with-start-process
function Start-Command ([String]$Path, [String]$Arguments) {
    $pinfo = New-Object System.Diagnostics.ProcessStartInfo
    $pinfo.FileName = $Path
    $pinfo.RedirectStandardError = $true
    $pinfo.RedirectStandardOutput = $true
    $pinfo.UseShellExecute = $false
    $pinfo.Arguments = $Arguments

JosePedroDias

JSON number limits

So we we're using an API which returns a JSON response. One of its attributes is a numeric key. Due to historical reasons we're now being served longer number (longs) so the server, which is not based on JavaScript, started returning long integers.

I had heard about issues like this but hadn't cross against a real use case before.

So what started happening on our JavaScript clients (browser and React Native alike) is that the primitive value we get back once we get the fetch json promise resolved is an overflown number.

JavaScript engines commonly have the symbol Number.MAX_SAFE_INTEGER so one can retrieve the number above which problems start to appear (it is 9007199254740991).

karanlyons

private rule Macho
{
    meta:
        description = "private rule to match Mach-O binaries (copied from Apple's XProtect)"
    condition:
        uint32(0) == 0xfeedface or uint32(0) == 0xcefaedfe or uint32(0) == 0xfeedfacf or uint32(0) == 0xcffaedfe or uint32(0) == 0xcafebabe or uint32(0) == 0xbebafeca
}

rule ZoomDaemon
{

aslushnikov

// This injects a box into the page that moves with the mouse;
// Useful for debugging
async function installMouseHelper(page) {
  await page.evaluateOnNewDocument(() => {
    // Install mouse helper only for top-level frame.
    if (window !== window.parent)
      return;
    window.addEventListener('DOMContentLoaded', () => {
      const box = document.createElement('puppeteer-mouse-pointer');
      const styleElement = document.createElement('style');

PARC6502

Backend as a Service

Supabase - ~52K stars

• Designed explicitly as an open source firebase alternative
• Typescript based
• Docker support

Appwrite - ~32K stars

• Written in JavaScript and PHP
• Docker based
• Realtime support across all services

ansulev

#
# Install and configure 3proxy for Ubuntu 16.04 or Debian 9
#

# Update the system and install build tools + fail2ban
apt update -y && apt upgrade -y && apt dist-upgrade -y
apt autoremove -y && apt autoclean -y && apt clean -y
apt -y install fail2ban software-properties-common
apt install -y build-essential libevent-dev libssl-dev

vinkla

Upload images to GitHub

1. Create a new issue on GitHub.

2. Drag an image into the comment field.

3. Wait for the upload process to finish.

4. Copy the URL and use it in your Markdown files on GitHub.