a single firewall should be used to create the dmz.
a single firewall should be used to create the dmz.
which type of device should you use to create the dmz?
a single firewall
hosts in the dmz are permitted to have only limited connectivity to specific hosts in the internal network, as the content of dmz is not as secure as the internal network. similarly, communication between hosts in the dmz and to the external network is also restricted to make the dmz more secure than the internet and suitable for housing these special purpose services. this allows hosts in the dmz to communicate with both the internal and external network, while an intervening firewall controls the traffic between the dmz servers and the internal network clients, and another firewall would perform some level of control to protect the dmz from the external network.
dmz (computing)
starting in 1967 the un command developed a layered defense of the korean demilitarized zone (dmz). the armistice restricted fortification within the dmz, where defences were limited to patrols and observation posts without heavy weapons. more aggressive patrolling of the dmz was ordered with patrols going out for twenty-four hours, reconnoitring by day and establishing ambushes at night; most u.s. casualties occurred during these patrols. the observation posts were fortified with sandbags and machine-guns and recoilless rifles were frequently kept hidden there in breach of the armistice. general bonesteel obtained $30m in funding from the u.s. army combat developments command to create a dmz test barrier along the portion of the dmz occupied by the 2id and the roka 21st infantry division. beyond the southern boundary or "south tape" of the dmz, no defensive restrictions applied and a combined u.s.-korean engineer force constructed an in-depth barrier comprising a 3m tall chain-link fence, topped by triple strands of concertina wire and reinforced by interwoven saplings and steel engineer pickets, behind it a narrow, raked-sand path paralleled the fence to highlight footprints. behind the sand strip was a 120m wide cleared kill zone in which mines and tanglefoot wire fronted a line of conventional defensive positions of interlocking machine guns and pre-registered mortar and artillery fire which dominated the kill zone. observation towers stood at intervals along the trace to permit clear view of the open areas. various electronics and sensors were tested on the barrier similar to the mcnamara line in vietnam, but with the exception of starlight scopes they were largely ineffective. the barrier could not prevent infiltration (it was estimated that the north koreans could cut through the fence in 30–40 seconds), rather it was intended to slow movement and provide easy observation. behind the barrier were the quick-reaction forces of mechanized infantry, tanks and armored cavalry that would hunt down infiltrators. the rules of engagement were also loosened to allow the frontline troops to use artillery and mortar fire against known kpa elements in or south of the dmz and against kpa firing from north of the military demarcation line, although in practice this was only used sparingly. a new 4 monthly rotation scheme was introduced in october 1967 to ensure that each battalion received only its fair share of time manning and patrolling the barrier. 7id sent one infantry battalion at a time to augment the 3rd brigade, 2id, this increased the defense to four battalions on the line plus the quick-reaction forces.
korean dmz conflict