
1) Computer network security
Found on
https://www.crosswordclues.com/clue/ipfirewall

ipfirewall or ipfw is a FreeBSD IP packet filter and traffic accounting facility. Its ruleset logic is similar to many other packet filters except IPFilter. ipfw is authored and maintained by FreeBSD volunteer staff members. Its syntax enables use of sophisticated filtering capabilities and thus enables professional users to satisfy advanced requi...
Found on
http://en.wikipedia.org/wiki/Ipfirewall
No exact match found.