44670’s gists

44670 / netcat_udp.py

Created April 15, 2023 11:33

Netcat-like UDP Tool in Python

	#!/usr/bin/env python3
	"""
	Netcat-like UDP Tool in Python

	This Python script provides a simple and lightweight netcat-like UDP tool that allows users to
	send and receive data over UDP using IPv4 and IPv6 addresses. It is designed to be easy to use
	and versatile, making it suitable for various networking tasks, including testing, debugging,
	and learning purposes.

	By following the netcat command-line style, this script offers users a familiar interface for

44670 / gist:d8a6ef19e0aa6ab39bdba61156937d88

Created April 5, 2022 04:34

How to setup postgresql in debian 11

	How to setup postgresql in debian 11:

	1. Install postgresql:
	apt install postgresql postgresql-contrib

	2. su to postgres account, in order to manipulate the database:
	su - postgres

	3. Create a user and database named with mydb, set password:
	createuser -P mydb

44670 / gist:42a1baa1fe770c2a37170ca0ad6f7737

Last active May 6, 2025 05:21

Allwinner D1 Set HDMI Resolution


	HDMI_RESOLUTION=5 #720p

	cd /sys/kernel/debug/dispdbg
	echo disp0 > name; echo switch1 > command; echo 4 $HDMI_RESOLUTION 0 0 0x4 0x101 0 0 0 8 > param; echo 1 > start;

44670 / genpass.py

Created February 18, 2021 02:14

genpass.py

	import getpass
	import base64
	from hashlib import pbkdf2_hmac

	pwd = getpass.getpass()
	salt = input('Website Name:')

	iters = 10000
	hmac = pbkdf2_hmac(hash_name='sha256',password=pwd.encode('utf8'),salt=salt.encode('utf8'),iterations=iters)
	pwd = base64.b64encode(hmac).decode('utf8')

44670 / election-rebuild behind a proxy.md

Created September 20, 2020 14:10

election-rebuild behind a proxy

edit node_modules\electron-rebuild\src\rebuild.ts:

add following code when initializing rebuildArgs:

rebuildArgs.push('--proxy=http://YOUR_PROXY_SERVER')

44670 / index.html

Created August 13, 2020 08:17 — forked from corburn/index.html

Minimal HTML5

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width,initial-scale=1">
	<title>title</title>
	<link rel="stylesheet" href="style.css">
	<script src="script.js"></script>
	</head>
	<body>

44670 / gist:30a742f317b52780c41f3d6e256f218c

Last active August 30, 2023 11:41

Building upstream RISC-V GCC+binutils+newlib: the quick and dirty way

	Building upstream RISC-V GCC+binutils+newlib: the quick and dirty way
	September 5, 2017

	There are a number of available options for building a RISC-V GCC toolchain. You might use the build system from the riscv/riscv-tools repository, or investigate toolchain generators such as crosstool-ng. However in the case of riscv-tools, it’s not always clear how this corresponds to the code in the relevant upstream projects. When investigating a potential bug, you often just want to build the latest upstream code with as little fuss as possible. For distribution purposes you’d probably want to perform a proper multi-stage build, but for a quick test you might find the following recipe useful:

	git clone --depth=1 git://gcc.gnu.org/git/gcc.git gcc
	git clone --depth=1 git://sourceware.org/git/binutils-gdb.git
	git clone --depth=1 git://sourceware.org/git/newlib-cygwin.git
	mkdir combined
	cd combined

44670 / debian-buster-arm64-rpi4

Last active May 22, 2021 10:42

debian buster arm64 on raspberry pi 4

	# build rootfs on host
	debootstrap --arch=arm64 buster rootfs https://mirrors.163.com/debian/
	chroot rootfs
	apt install apt-transport-https network-manager nano sudo
	useradd -m -G video,render,sudo,dialout -s /bin/bash pi
	passwd pi

	# edit /etc/fstab
	/dev/mmcblk0p1 /boot vfat defaults 0 0
	/dev/mmcblk0p2 / ext4 defaults,noatime,nodiratime 0 1

44670 / genpass.py

Last active November 2, 2019 08:06

	import getpass
	import base64
	from hashlib import pbkdf2_hmac

	pwd = getpass.getpass()
	salt = raw_input('Salt:')

	iters = 10000
	hmac = pbkdf2_hmac(hash_name='sha256',password=pwd,salt=salt,iterations=iters)

44670 / lcd.py

Created April 17, 2017 06:44

lcd