Define IP address inside multi-domain SSL certificate.
Check if the certificate matches DNS name or IP address
Create a multi-domain SSL certificate without a common name.
Use the OpenSSL utility to generate a base64-encoded secret.
Use the native IPsec stack to connect multiple networks over the internet.
Trace packets as they pass through the iptables firewall.
Determine SSL cipher suites supported by the web-server using OpenSSL.
Log every executed command to syslog.
I will show you how to generate a random password using the OpenSSL utility, standard command-line utilities, Password Generator (pwgen), and Automated Password Generator (APG).
A week ago I wrote about a couple of interesting applications that can crack passwords, but they were not as fast as I thought. After investigating this topic further, I ended up using a community-enhanced version of John the Ripper.