Content deleted Content added
→Most common firewall log types: rm trivial list with no references, removing per WP:NOTALIST and WP:BOLD; please revert or use Talk if this section had some significance to the article |
Rescuing 2 sources and tagging 0 as dead.) #IABot (v2.0.9.5 |
||
Line 21:
|archive-url = https://web.archive.org/web/20160521201820/https://www.paloaltonetworks.com/documentation/glossary/what-is-a-firewall
|url-status = dead
}}</ref> their basic function being to control the flow of data between connected networks. They are either a [[software appliance]] running on general-purpose hardware, a [[Computer appliance#Types of appliances|hardware appliance]] running on special-purpose hardware, or a [[virtual appliance]] running on a virtual host controlled by a [[hypervisor]]. Firewall appliances may also offer non-firewall functionality, such as [[DHCP]]<ref>{{Cite web|title = Firewall as a DHCP Server and Client|url = https://paloaltonetworks.com/documentation/70/pan-os/pan-os/networking/firewall-as-a-dhcp-server-and-client.html|website = Palo Alto Networks|access-date = 2016-02-08}}</ref><ref>{{Cite web|title = DHCP|url = http://www.shorewall.net/dhcp.htm|website = www.shorewall.net|access-date = 2016-02-08}}</ref> or [[VPN]]<ref>{{Cite web|title = What is a VPN Firewall? – Definition from Techopedia|url = https://www.techopedia.com/definition/30753/vpn-firewall|website = Techopedia.com|access-date = 2016-02-08}}</ref> services. Host-based firewalls are deployed directly on the [[Host (network)|host]] itself to control network traffic or other computing resources.<ref>{{cite book | first1=John R. | last1=Vacca | title=Computer and information security handbook | publisher=Elsevier | date=2009 | ___location=Amsterdam | page=355 | isbn=9780080921945}}</ref><ref>{{cite web |url=https://personalfirewall.comodo.com/what-is-firewall.html |title=
[[File:Firewall.png|thumb|left|An illustration of a network-based firewall within a network]]
Line 151:
== External links ==
* [http://docstore.mik.ua/univercd/cc/td/doc/product/iaabu/centri4/user/scf4ch3.htm Evolution of the Firewall Industry] – discusses different architectures, how packets are processed and provides a timeline of the evolution.
* [http://www.cs.unm.edu/~treport/tr/02-12/firewall.pdf A History and Survey of Network Firewalls] {{Webarchive|url=https://web.archive.org/web/20170830035901/http://www.cs.unm.edu/~treport/tr/02-12/firewall.pdf |date=2017-08-30 }} – provides an overview of firewalls at various ISO levels, with references to original papers where early firewall work was reported.
{{Computer security}}
| |||