https://redpiranha.net/news/borderless-firewalling-circumvent-cyber-kill-chain-apts
Borderless Firewalling to Circumvent the Cyber Kill Chain with APTs
cyber kill chainborderlessfirewallingcircumventapts
https://forums.freebsd.org/threads/tuning-freebsd-for-routing-and-firewalling.68837/
Tuning FreeBSD for routing and firewalling | The FreeBSD Forums
Olivier Cochard-Labbe, known as the FreeNAS founder and a FreeBSD contributor, has released a paper about routing and firewalling for FreeBSD operating...
the forumstuningfreebsdroutingfirewalling
https://www.rambus.com/blogs/security-cryptographically-securing-on-chip-firewalling/
Cryptographically securing on-chip firewalling - Rambus
Feb 22, 2019 - Rambus security researchers recently presented a paper at NSS 2015 that details the process of cryptographically securing on-chip firewalling.
securingchipfirewallingrambus
https://forum.netgate.com/category/4/firewalling?page=5
Firewalling | Netgate Forum
Discussions about firewalling functionality in pfSense software
firewallingnetgateforum