Spanish National Cryptological Center (CCN) provides several security trainings for public institutions and defense bodies of Spain such as the CCN-STIC hands-on courses provided thanks to the collaboration of several partners such as Insectra Technology …

I have writting an article about how to deploy a network-based firewall based on OpenBSD packet filter (pf) providing high-availability combining Common Address Redundancy Protocol (CARP) and state-table synchronization (pfsync). It describes a case study …