This tutorial will look at how to configure an OpenVPN server using a certificate issued by a recognized certificate authority. An internal CA will still be used to verify clients
This tutorial will show you how to set up TOR as a daemon and host hidden services. Hidden services are only available on the TOR darknet and allow you to host services without revealing your IP. Tor hidden services can be accessed via a special .onion domain. Although it hides
This tutorial creates rules to limit traffic (both ingress/egress) only to gateway. This prevents traffic from other patrons reaching you when using public wifi
Ferm is a 'frontend' for iptables written in Perl. The best way to describe it is a firewall compiler (although it can do more than that, as we'll see later). Ferm provides a syntax that is simple, rich, and flexible for writing rules, ferm then generates a list of iptables rules.
Here is a handy snippet for configuring a hardened SSL/TLS on Nginx. It receives a A+ rating when tested at Qualys. A later post will discuss the configuration options in detail, what they do, and how SSL works. Just a word of warning, this configuration enables HSTS by default.
A primitive port scanner can be constructed using solely the bash shell via its /dev/tcp virtual file. The script will scan common ports, and if an open port is found, it will display a base64 encoded output of the servers response.