Security Technology Firewalls and VPN Coursework

Security Technology Firewalls and VPN - Coursework ExampleIn my research, i came about Comodo internet security, pc tools firewall asset free edition and zonealarm free firewall that are the best firewalls to be used at present because they are very light, cheap, easy to maintain as some of them like comodo has combined its antivirus program with firewall pro wherefore free security program for everyone.A virtual private network (VPN) spreads secluded network crosswise a public network, for instance the internet. It makes telecommunication possible, practical and secure (Stewart p. 87). Extranets are said to be besiege networks quietly similar to DMZ because resources are accessed by outside entities. On the other hand, Stewart (p. 87) adds that an extranet is not expand for free usage but by specific sets of people. This, however states that a VPN configuration is necessary to becharm access to the extranet and therefore with this, extranets are both possible and practical.The re might be factors one has to pack for both the internal and external firewalls to allow a remote user to access an internal mold from the internet using Timbuktu as in this case shown above.One should be able to use a router that hobo handle inbound a well as outbound packet filtering on each interface.You rout out create a default deny to reject packets,then deny inbound trade to come f internal address while t outer does not.You rotter also deny all traffic with invalid addresses as well as all traffic with source routes. Again,deny all ICMP traffic oer good size and lastly, reassemble fragments into entire packets.In this network architecture, it is also easy to create a DMZ just between the two firewalls. It will clearly show that the outside world can go through layers therefore easier to hit the DMZ and presumably what is there is at a set down risk. Multiple layers of firewalls are more secure even though it seems to be very difficult