How to calculate the passive FTP port

When you connect to a FTP server you can receive the following message 227 Entering Passive Mode (192,168,0,14,243,121) The first 4 digits are the IP address you have to connect to (192.168.0.1) The last 2 digits are used to calculate the passive port. (243*256)+121=62329 So this message actually means: connect to 192.168.0.1 over port 62329 This […]

Remove HSTS entry from Google Chrome

HSTS stands for HTTP Strict Transport SecurityThis is a header send by the webserver to tell your browser “Don’t visit this website (and if enabled, additional subdomains) over a unsecure HTTP channel for a given period of time”This mechanism must prevent MITM attacks in some wayThis information is saved per browser. When you visit a […]