zoonderkins

Script

    #!/bin/bash
    # Name  : Anti IP Leakage
    # Author: Zhys
    # Date  : 2019

    # 禁止来自IPv4的所有HTTP/S访问请求

zoonderkins

Convert PNG to JPG via Imagick cli

mogrify -format jpg *.png

List too long issue

zoonderkins

Error zsh: argument list too long solution

Scenerio: I've more than 50000 png file under current directory

ulimit -S -s unlimited

find ./ -name '*.png' -maxdepth 1 -exec mv {} final-qrcode \;

zoonderkins

Test is number solution then do SQL

function isNumber(n) { return /^-?[\d.]+(?:e-?\d+)?$/.test(n); } 

app.get('/status', (req, res) => {
    let  { uid }  = req.query

    if (!isNumber(uid)) {
 res.send({"msg": "uid is not a number"})

zoonderkins

### GENERAL SYSTEM SECURITY OPTIONS ###
###
# https://github.com/klaver/sysctl/blob/master/sysctl.conf
# https://github.com/sathrak/linux-sysctl.conf
# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.

zoonderkins

How to fix apt's "the following packages have been kept back" issue

apt-get install aptitude -y
aptitude safe-upgrade

https://www.techrepublic.com/article/how-to-fix-apts-the-following-packages-have-been-kept-back-issue/

zoonderkins

Fix debian invalid locales

 The unknown environment variables are:
   LC_CTYPE=UTF-8 LC_ALL=
 This can affect your user experience significantly, including the
 ability to manage packages. You may install the locales by running:

 sudo dpkg-reconfigure locales

zoonderkins

Preventing Data Recovery [HDD/SSD]

Any Linux live cd would work. Then as others have said, the shred tool,

dd if=/dev/urandom of=/dev/disk”

This will fill it with totally random data.

zoonderkins

Linux control systemd

nano  /etc/systemd/journald.conf

# Set Max Use to 50M

[Journal]

SystemMaxUse=50M

zoonderkins

Github Action

name: Update Fork

on:
  schedule:
    - cron: "0 0 * * *"