i'm in your internets. lol.

Just a normal geek

[zantekk-blog]

PythonChallenge: Level 8

#!/usr/bin/env python3 import bz2 un = b'BZh91AY&SYA\xaf\x82\r\x00\x00\x01\x01\x80\x02\xc0\x02\x00 \x00!\x9ah3M\x07<]\xc9\x14\xe1BA\x06\xbe\x084' pw = b'BZh91AY&SY\x94$|\x0e\x00\x00\x00\x81\x00\x03$ \x00!\x9ah3M\x13<]\xc9\x14\xe1BBP\x91\xf08' print('user:', bz2.decompress(un)) print('pass:', bz2.decompress(pw))

[zantekk-blog]

PythonChallenge: Level 7

#!/usr/bin/env python3 from PIL import Image i = Image.open('level7.png') y = i.size[1]/2 print(''.join([chr(i.getpixel((x,y))[0]) for x in range(0,i.size[0],7)])) sol = [105, 110, 116, 101, 103, 114, 105, 116, 121] print(''.join([chr(sol[x]) for x in range(len(sol))]))

[zantekk-blog]

PythonChallenge: Level 6

#!/usr/bin/env python3 import re import zipfile url = "http://www.pythonchallenge.com/pc/def/" ## p = re.compile('^Next nothing is (.*)$') next_f = '90052' data = zipfile.ZipFile('channel.zip') comments = [] while True: try: fn = next_f + '.txt' comments.append(data.getinfo(fn).comment.decode('utf-8')) next_f = p.findall(data.open(fn).read().decode('utf-8'))[0] except: print(''.join(comments)) break

Which gives you:

**************************************************************** **************************************************************** ** ** ** OO OO XX YYYY GG GG EEEEEE NN NN ** ** OO OO XXXXXX YYYYYY GG GG EEEEEE NN NN ** ** OO OO XXX XXX YYY YY GG GG EE NN NN ** ** OOOOOOOO XX XX YY GGG EEEEE NNNN ** ** OOOOOOOO XX XX YY GGG EEEEE NN ** ** OO OO XXX XXX YYY YY GG GG EE NN ** ** OO OO XXXXXX YYYYYY GG GG EEEEEE NN ** ** OO OO XX YYYY GG GG EEEEEE NN ** ** ** **************************************************************** **************************************************************

[zantekk-blog]

PythonChallenge: Level 5

#!/usr/bin/env python3 import pickle url = "http://www.pythonchallenge.com/pc/def/" ## def print_list(l): for i in l: char, count = i for j in range(count): print(char, end='') print('') with open('level5.txt', 'rb') as data_file: data = pickle.load(data_file) for d in data: print_list(d)

Gives:

##### ##### #### #### #### #### #### #### #### #### #### #### #### #### #### #### ### #### ### ### ##### ### ##### ### ### #### ### ## #### ####### ## ### #### ####### #### ####### ### ### #### ### ### ##### #### ### #### ##### #### ##### #### ### ### #### ### #### #### ### ### #### #### #### #### ### #### #### ### #### #### ### #### #### #### #### ### ### #### #### #### #### ## ### #### #### #### #### #### ### #### #### #### #### ########## #### #### #### #### ############## #### #### #### #### ### #### #### #### #### #### #### #### #### #### #### #### ### #### #### #### #### #### #### ### #### #### #### ### #### #### #### #### ### #### ### ## #### #### ### #### #### #### #### #### ### ## #### ### ## #### #### ########### #### #### #### #### ### ## #### ### ###### ##### ## #### ###### ########### ##### ### ######

[zantekk-blog]

PythonChallenge: Level 4

#!/usr/bin/env python3 import re import urllib.request url = "http://www.pythonchallenge.com/pc/def/" ## p = re.compile('and the next nothing is (.*)$') base_url = 'http://www.pythonchallenge.com/pc/def/linkedlist.php?nothing=' next_step = '12345' while True: r = urllib.request.urlopen(base_url + next_step) b = r.read() try: next_step = p.findall(b.decode('utf-8'))[0] print('next:', next_step) except IndexError: if b == b'Yes. Divide by two and keep going.': next_step = str(int(next_step) / 2) continue print("We're done here, go:", url + b.decode('utf-8')) break

[zantekk-blog]

PythonChallenge: Level 3

#!/usr/bin/env python3 import re base_url = "http://www.pythonchallenge.com/pc/def/" ## p = re.compile('[a-z]{1}[A-Z]{3}[a-z]{1}[A-Z]{3}[a-z]{1}') answer = "" with open('level3.txt', 'r') as data_file: data = data_file.read() for hit in p.findall(data): answer += hit[4:5] print(answer) print(base_url + answer + '.html')

[zantekk-blog]

PythonChallenge: Level 2

#!/usr/bin/env python3 base_url = "http://www.pythonchallenge.com/pc/def/" ## unrare_chars = "!+_^#@[]{}()*$&%\n" answer = "" with open("level2.txt", "r") as data_file: for line in data_file: for c in line: if c not in unrare_chars: answer += c print(answer) print(base_url + answer + ".html")

[zantekk-blog]

PythonChallenge: Level 1

#!/usr/bin/env python3 base_url = "http://www.pythonchallenge.com/pc/def/" ## input = """g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle. sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj""" intab = "abcdefghijklmnopqrstuvwxyz" outtab = "cdefghijklmnopqrstuvwxyzab" print(input.translate(str.maketrans(intab, outtab))) print(base_url + "map".translate(str.maketrans(intab, outtab)) + '.html')

[zantekk-blog]

PythonChallenge: Level 0

Ok, so I decided to improve my Python skills and just found http://www.pythonchallenge.com/. It's a kind of a quiz/puzzle game which should be solved by writing little code-snippets to get from one level to the next. I'll post my code-snippets here - one post for one problem.

Let's start with level 0:

http://www.pythonchallenge.com/pc/def/0.html

So you see that pic of a screen with the numbers 238. I noticed that 38 is placed a litte higher than 2 and my first attempt was to just solve that term:

answer = 2 ** 8

That gave me:

answer = 274877906944

So I just replaced the 0 in the URL with that answer and voilá, reached level1.

=> http://www.pythonchallenge.com/pc/def/274877906944.html

[zantekk-blog]

Restored Clonezilla partition won't boot?

Came through this today, very annoying! It's because CZ sometimes failes at writing the MBR correctly. So here is what I did to get this fixed:

Boot any Linux-Live-CD

Open a terminal

Chroot into your restored system (wrote a how-to in another post)

update-grub

grub-install /dev/sda

reboot

[zantekk-blog]

Remove a PPA and revert package-versions

If you want to remove a PPA safely including reverting of all package-version which came with the PPA, just install ppa-purge and use it like this:

sudo ppa-purge ppa:xorg-edgers/ppa

You can, of course, insert every PPA you want :)

[zantekk-blog]

Get external IP via curl

If you're a terminal-lover like me you'll also be able to get your external IP with a simple command.

Therefore you can just install 'curl' and then type the following:

curl icanhazip.com

You can even simplify that command by adding the following piece of code to your ~/.bashrc

alias myip="curl icanhazip.com"

Now if you type myip into you terminal, your external IP will be shown.

[zantekk-blog]

Android and Ubuntu

Wanna know how to use platform-tools or fastboot from the android SDK under an Ubuntu-based Linux? Well, you can download the full SDK of course, but if you only want the tools, I refer to this article ->

http://www.webupd8.org/2012/08/install-adb-and-fastboot-android-tools.html

[zantekk-blog]

How-To chroot the right way

Did you ever have trouble while chrooting from a live CD/USB into your local system? Mh okay, just follow these steps:

Boot into you live CD/USB.

Open the filemanager.

Click on your system's SDD/HDD to mount it.

Now you'll have a new folder in /media which is your device's ID.

Open a terminal and type in the following:

$ for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /media/<device-id>$i; done

$ sudo chroot /media/<device-id> /bin/bash

Done. Welcome to your system.