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>>> l = [10, 15, 18, 20, 21, 21, 21, 24, 24]
>>> binary_search(l, 18)
2
>>> binary_search(l, 21)
4
>>> binary_search(l, 24)
7
>>> binary_search(l, 100)
-1

pythonhacker

import bisect

def binary_search(a, x, lo=0, hi=None):
    """ Search for item x in a using bisect binary search """
    
    if hi is None:
        hi = len(a)
    pos = bisect.bisect_left(a, x, lo, hi)
    if pos != hi and a[pos] == x:
        return pos

pythonhacker

Strength Level	Entropy (bits)	Description / Example
🟥 Very Weak	< 28	Simple words or predictable patterns — e.g. password123, qwerty
🟧 Weak	28–35	Slightly varied words or short phrases — e.g. MyDog2025
🟨 Moderate	36–59	Adequate for low-value logins or throwaway accounts
🟩 Strong	60–79	Meets modern security standards (NIST/OWASP)
🟦 Very Strong	80–99	Excellent protection for most use-cases
🟪 Excellent	100+	Practically unbreakable by brute-force today

pythonhacker

Comprehensive Guide: Adding SSL Certification to Your k3s Cluster

Hello there! Today, we're diving deep into the process of adding SSL certification to services deployed on a k3s cluster. By the end of this guide, you'll be able to securely serve your services over HTTPS, enhancing the security of your applications.

Table of Contents

1. Introduction
2. Prerequisites
3. Installing cert-manager
4. Creating an Issuer or ClusterIssuer

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// Storing cryptographic password hashes in database or memory
// and comparing with password.
package main

import (
	"log"
	"errors"
	"strings"
	"crypto/subtle"
	"encoding/base64"

pythonhacker

function uuidgen() {
	
	chunks=(4 2 2 2 6)
	elems=()
	
	for c in ${chunks[@]}; do
		hex_chunk=$(xxd -l $c -p /dev/urandom)
		elems+=( $hex_chunk )
	done

pythonhacker

#!/bin/bash
# Use this script if you have an external monitor (HDMI) and want that as primary display
# but switch to the laptop monitor (eDP) when the external monitor is off (power off or otherwise)
# Guess if you have the external monitor attached to a UPS device, you don't need this script...!

# Detect when monitor is powered off and switch the laptop display back on
# and vice-versa, keeping the external monitor as primary display whenever
# possible.

function get_laptop_display() {

pythonhacker

About

This is a write up on how to use thinkfan on Lenovo ThinkPads running antiX Linux. I am writing from my (bad) experience after installing antiX Grup Yorum 21 on a Lenovo ThinkPad P15s with the fan running constantly at max speed.

This is based on the guide provided at https://gist.github.com/Yatoom/1c80b8afe7fa47a938d3b667ce234559 however since the thinkfan utility does not seem to be available in the default repos of antiX Linux, it also includes steps to build the utility from source code - plus other tweaks for Thinkpad.

Try installing from repo

 $ sudo apt install thinkfan

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function toggle_xcomp() {
# toggle X compositor
ret=`xfconf-query -c xfwm4 -p /general/use_compositing`
case "$ret" in
"false") echo "turning compositor on";xfconf-query -c xfwm4 -p /general/use_compositing -t bool -s true;;
 *) echo "turning compositor off";xfconf-query -c xfwm4 -p /general/use_compositing -t bool -s false;;
esac
}

pythonhacker

// Courtesy: @Fermatslibrary
// Reference: https://twitter.com/fermatslibrary/status/1275066521450975234
// Copyright: Anand B Pillai @skeptichacker
// LICENSE: MIT

use std::env;
use std::collections::HashMap;

pub fn is_prime(n: u64)  -> bool {