openssl s_client – SNI testing with -servername
When testing network connections to a server using the TLS SNI extension to allow a single IP address to respond with different certificates the openssl...
Category: Security
Which ssh publickey was used to access an account
When you have more than one public key set up to be able to access a single account (ie more than one public key listed...
Protecting Joomla : User-Registration Spam Relay
The Problem: A Default Setting By default user registration is enabled. It’s important to realise that even though links to the user registration page may...