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package main
import (
"fmt"
"reflect"
"syscall"
"unsafe"
)
func a() int {
@mtds
mtds / lvn.md
Last active June 26, 2024 17:07
Linux Virtual Networking

Virtual Networking on Linux

In the Linux Kernel, support for networking hardware and the methods to interact with these devices is standardized by the socket API:

                +----------------+
                |   Socket API   |
                +-------+--------+
                        |
User space              |
@fnky
fnky / ANSI.md
Last active July 17, 2024 02:05
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
@blackcater
blackcater / diagrams.md
Created July 6, 2018 16:45
Markdown Diagrams

Diagrams

Markdown Preview Enhanced supports rendering flow charts, sequence diagrams, mermaid, PlantUML, WaveDrom, GraphViz, Vega & Vega-lite, Ditaa diagrams. You can also render TikZ, Python Matplotlib, Plotly and all sorts of other graphs and diagrams by using Code Chunk.

Please note that some diagrams don't work well with file exports such as PDF, pandoc, etc.

Flow Charts

This feature is powered by flowchart.js.

@yudai
yudai / README.md
Created November 29, 2017 01:04
tmux + mosh OSC 52 clipboard paste hack

Problem

Now tmux, mosh and iTerm2 support the OSC 52 sequence that enables clipboard sharing. However, there is a trap that prevents them from working together.

Mosh accepts OSC 52 sequences with the c; option. However, tmux doesn't send that option when it emits OSC 52 sequences, which means you cannot use tmux and mosh together with the default configuration.

Workaround

You can override the OSC 52 sequence generated by tmux by adding the following line to your tmux.conf.

@ninedraft
ninedraft / README.md
Last active July 6, 2024 05:58
Python udp broadcast client server example.

Python udp broadcast client-server example

⚠️ ❗ ATTENTION ❗ ⚠️

This gist is deprecated and will not be edited in the future. Consider visit ninedraft/python-udp repo. It will not be deleted, however.

⚠️ ❗ ATTENTION ❗ ⚠️

@dd-han
dd-han / README.md
Last active January 15, 2022 19:12
using Cloudflare as DDNS in ASUSWRT-Merlin firmware

ASUSWRT-MERLIN custom DDNS Script for Cloudflare

for Cloudflare as DDNS

using Cloudflare API v4

Using

put ddns-start at /jffs/scripts/, setting values and set DDNS type to Custom at web Admin panel.

@fntlnz
fntlnz / self-signed-certificate-with-custom-ca.md
Last active July 15, 2024 09:31
Self Signed Certificate with Custom Root CA

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096
@avafloww
avafloww / PhpJava.java
Last active June 13, 2024 07:36
This snippet of code is syntactically valid in both PHP and Java, and produces the same output in both.
/*<?php
//*/public class PhpJava { public static void main(String[] args) { System.out.printf("/*%s",
//\u000A\u002F\u002A
class PhpJava {
static function main() {
echo(//\u000A\u002A\u002F
"Hello World!");
}}
//\u000A\u002F\u002A
PhpJava::main();