In preparation for a new web security training course (german, coming soon), I had another look at the current version of the Damn Vulnerable Web App (DVWA). As I documented the solution for the command injection vulnerability on high, I found something that sparked a tiny idea how this part might b...
Yesterday at around 10:00 pm, I noticed that something was wrong with Steam. The interface suddenly presented itself in different languages and kept switching. I tried to switch back to english but got an error message that something went wrong. A little bit of poking around in the settings showe...
Now matter how much you want to secure your mail server, to be able to actually communicate with your customers and partners, you will have to face the ugly truth that enforcing STARTTLS might not be the best idea from a business perspective. Using opportunistic encryption, meaning to encrypt mail...
Internal encryption in company networks is important and something that's done relatively easy. By creating your own certificate authority (CA) and signing your server certificates with it, you can establish a centralized point of trust on all your devices, making it much more easy for you to mainta...
Whenever I'm connecting to a new remote server via SSH, I tend to verify the fingerprint to make sure that I'm actually connecting to my own machine. Usually it's not that big a deal as I'm simply comparing two strings, but what if those two strings are created with two different hashing algorithms?...