Microsoft Official Course DHCP DHCP DHCP Server 2

Microsoft Official Course ® DHCP

Как работи DHCP? DHCP Server 2 DHCP Server 1 1. 2. 3. 4. DHCP client broadcasts a DHCPDISCOVER packet DHCP servers broadcast a DHCPOFFER packet DHCP client broadcasts a DHCPREQUEST packet DHCP Server 1 broadcasts a DHCPACK packet

Как се подновява DHCP даденият адрес? DHCP Server 2 DHCP Server 1 1. 2. 3. 4. DHCP clients 87. 5% 100% 50% of of oflease duration has expired DHCP client sends a DHCPREQUEST packet DHCP Server 1 sends a DHCPACK packet If the client fails to renew its lease after 50% of the lease duration has expired, the DHCP lease renewal process begins again after 87. 5% of the lease duration has expired If the client fails to renew its lease after 87. 5% of the lease has expired, the DHCP lease generation process starts over again with a DHCP client broadcasting a DHCPDISCOVER

Оторизиране на DHCP сървърите DHCP оторизацията регистрира. DHCP сървъра в Active Directory домейна If DHCP Server 2 does with not find its IP address on DHCP Server 2 checks the DHCP client receives IP address Ако DHCP Server 1 намери IP адреса в Server 1 domain controller the list, the service does not start and си support from authorized Server 1 Иначе of authorized DHCP servers to obtain a list DHCP списъка, услугата стартира. - не DHCP clients Domain controller AD DS DHCP Server 1 Authorized Services DHCP requests DHCP Server 2 DHCP client Unauthorized Does not service DHCP requests

Microsoft Official Course ® DNS

Как се преобразуват DNS имената в Интернет? . root DNS What is the IP address of www. microsoft. com? 2 3 1 Workstation . com DNS Local DNS Server 4 The IP address is 207. 46. 230. 219 5 . root DNS

Итеративни DNS запитвания Client Recursive query mail 1. contoso. com 172. 16. 64. 11 Iterative query Ask. com Iterative query Ask contoso. com Local DNS server Root hint (. ) Iterative query Authoritativeresponse . com contoso. com

Какво са Root Hints? Root hints пазят IP адреси за DNS root сървъри Root (. ) Servers DNS Servers Root Hints com DNS Server Client microsoft

Какво е DNS пренасочването? A forwarder is a DNS server designated to resolve external or offsite DNS domain names Client Recursive query mail 1. contoso. com 131. 107. 0. 11 Iterative query Root hint (. ) Ask. com Recursive query Iterative query Ask contoso. com 131. 107. 0. 11 Local DNS server Iterative query Authoritativeresponse Forwarder . com contoso. com

Как работи DNS кеширането? DNS server cache Host name IP address TTL Server. A. contoso. com 131. 107. 0. 44 28 seconds Where isis at Server. A? 131. 107. 0. 44 Client 1 Server. A Where isis at 131. 107. 0. 44 Server. A? Client 2 Server. A

Microsoft Official Course ® Active Directory

Microsoft Official Course ® Windows Deployment Services