About: http://webisa.webdatacommons.org/239548888

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	But to get back to your question, yes, iptables/netfilter is a firewall.
http://www.w3.org/ns/prov#wasQuotedFrom	linuxquestions.org