• Crontab calendar generator
• iCloud Uploads Local Data Outside of iCloud Drive
• PSA: don't run 'strings' on untrusted files
• Nat McHugh: How I created two images with the same MD5 hash
• Linux ip Command Examples
• The Internet is on Fire - Mikko Hypponen - TEDxBrussels
• 30 Handy Bash Shell Aliases
• QDB: Top 100 Quotes
• Backdoor in a Public RSA Key
• Elevator Saga - The elevator programming game
• How to crack NQ Vault's "encryption"
• My Life Inside a Remote Chinese Bitcoin Mine

Viele Hosting-Anbieter stellen kostenlosen FTP-Backupspace zur Verfügung. Da die Daten bei FTP unverschlüsselt übertragen und später gespeichert werden, sollte jeder sicherheitsbewusste Admin seine Backups vorher verschlüsseln. Ich habe da mal etwas vorbereitet

• openssl
• pv
• ncftp

aptitude install openssl pv ncftp

dev:~$ ftpbackup backup.gz

ftpbackup

#!/bin/bash
 
# FTP Login
HOST='ftp.example.com'
PORT='21'
USER='foo'
PASS='bar'
 
# Encryption
ENCKEY='!! CHANGE-ME !!'
DIGEST='sha256'
CIPHER='aes-256-cbc'
SUFFIX='.enc'
 
if [ $# -lt 1 ]; then
        echo -e "Encrypt and upload a file to ftp://$HOST\n" >&2
        echo -e "Usage: $(basename "$0") <file>\n" >&2
        exit 1
fi
 
if [ ! -f "$1" ]; then
        echo -e "Error: File '$1' not found.\n" >&2
        exit 1
fi
 
checkBinarys() {
        BINS=("$@")
        for BIN in "${BINS[@]}"; do
                hash $BIN 2>/dev/null || {
                        echo -e "Error: Binary '$BIN' is missing.\n" >&2
                        exit 1
                }
        done
}
 
# Check if all needed binarys are present
checkBinarys "openssl" "pv" "ncftpput"
 
# Encrypt & Upload
openssl "$CIPHER" -salt -md "$DIGEST" -k "$ENCKEY" -in "$1"             |
pv -bper -s $(stat -c%s "$1")                                           |
ncftpput -c -r 1 -u "$USER" -p "$PASS" -P $PORT "$HOST" /"$1$SUFFIX"    || {
        echo -e "\nError: Upload failed.\n" >&2
        exit 1
}

dev:~$ openssl aes-256-cbc -d -salt -md sha256 -k '!! CHANGE-ME !!' -in backup.gz.enc -out backup.gz

• Encrypted chat with netcat
• ICANN list of proposed new gTLD top level domains
• Watching the watchers: Is isdownforeveryoneorjustme.com down or just me?
• Writing Robust Bash Shell Scripts
• Uprising in Ukraine (Photos and Videos)
• 32 Stunning Examples of Action Photography
• When cryptographic functions go bad
• 20 Photos That Will Make You Wish It Was Summer
• Storing ASCII art in the DNS

Great talk from Mikko!

• Mashup-Germany - Should I stay or should I go
• Twitter #beschreibedeinSexlebenmiteinemFilmtitel
• XMPP: XEP-0132 - Presence Obtained via Kinesthetic Excitation (POKE) :-D
• A simple "treesize" shell script for Linux
• js2js: A revolutionary open-source compiler from JavaScript to JavaScript
• NSA-O-Matic
• Oldboot: the first bootkit on Android

• Some harmless, old-fashioned fun with CSS
• Full CSS NES
• Inside the seedy underworld of spammers and phishers
• LulzSec hacker: Internet is a world devoid of empathy
• Why No One Should Mess With The Ocean
• Unicode: Creative usernames and Spotify account hijacking
• Snake Game Written in Bash