lichti

https://devjlanza.wordpress.com/2012/05/11/recover-data-after-running-dd-ifdevzero-for-a-few-seconds/

Friday morning working on installing OpenWrt pivot overlay on an USB pendrive. I need to format the USB and as I was doing it quite so many times I wasn’t paying too much attention. Don’t do that at home ;)

The USB was recognized as /dev/sdb1 on my laptop but on the router it was on /dev/sda1. As you have probably already guessed my main laptop hardrive was /dev/sda1.

I didn’t notice I wasn’t in the router console (f….. tabs) and after having successfully formatted the USB I decided to make it zero:

# dd if=/dev/zero of=/dev/sda1
I continue working on the laptop but when in typed ‘ls’ nothing is shown and even I got unknown command. Uppps… something is going wrong. I just realized I was formatting my hard drive in stead of the USB.

lichti

#!/bin/sh

# save dog.sh in /root/dog.sh. 
# You can use winscp with scp protocol to do this.
# Using ssh set executation permission and replace the crontab:
# chmod +x /root/dog.sh
# echo "* * * * * /root/dog.sh" | crontab -

# fix wpad / wpad-mini / hostapd stop working bug
logread -l 100 | grep -n "IEEE 802.11: did not acknowledge authentication response"

lichti

#!/bin/bash

# Author: Gustavo Lichti
# Email: gustavo.lichti@gmail.com

# Usage: ./scan_hosts.sh --hosts <hosts_file> --host xpto.xxx --host xpto2.xxx --threads <number_of_threads> --output <output_directory>

SCRIPT_STARTED=$(date +"%Y%m%d_%H%M")

# Function do add log Line

lichti

:global lastTimeLogingFailure;

:local varEmail "my@email.com";
:local varEmailSubj "failure login";
:local Hostname [/system identity get name];
:local filter "login failure";

:local varDate [/system clock get date];
:local varMonth [:pick $varDate 0 3];
:local varDay [:pick $varDate 4 6];

lichti

git clone https://github.com/certbot/certbot /opt/letsencrypt

ln -s /opt/letsencrypt/certbot-auto /usr/bin/certbot

certbot certonly --expand --agree-tos --text --non-interactive \
 --standalone \

lichti

# Using yubikey to unlock LUKS partitions

# My SDB3 is a partitions with luks, with lvm and ma root fs (/)
# My SDA1 ia my data partition with luks mounted at /data
# I will use yubikey as 2FA to unlock the SDB3 and the SDA1 will be unlocked by a key file

## On SDB3

# Configure the slot two of yubikey to challenge mode

lichti

###
# Explain
# RG Number -> AB.CDE.FGH-V
# X=(Hx9)+(Gx8)+(Fx7)+(Ex6)+(Dx5)+(Cx4)+(Bx3)+(Ax2)+(100xV)
# Y= X%11
# If Y (rest of division) is 0 the RG is Valid

###
# Function to validate Brazilian "RG"
def isValidRG(number,dv):

lichti

#!/bin/bash

BYellow='\033[1;33m'
BGreen='\033[1;32m'
Color_Off='\033[0m'

LOCALPATH=$PWD
OUTPUT=$LOCALPATH/OUTPUT

if [ ! -d $OUTPUT ]; then

lichti

Imagem Docker para rodar um firefox com o warsaw configurado para acesso a bancos brasileiros.
É uma boa opção para acessar bancos através de GNU/Linux.
Have a nice day.
More Info:
https://hub.docker.com/r/lichti/warsaw-browser/
https://github.com/lichti/containers4docker/tree/master/warsaw-browser

lichti

#!/bin/bash

MYSQL_LOGIN='-uroot --password=neOfByon'

while read line
do
  # SIZE | DATABASE | TABLE | FLAG
  SIZE=$( echo "$line" | cut -d\| -f 1)
  DATABASE=$( echo "$line" | cut -d\| -f 2)
  TABLE=$( echo "$line" | cut -d\| -f 3)