Windows server 2016 Network Services (2)

Dhcp:

Basic concept: lease: ensure that only one DHCP service is running properly in a broadcast network

Lease update: when an enterprise's DHCP fails, it will not immediately cause a failure of the enterprise's internal network.

DHCP server deployment and configuration

Basic deployment: if the current server environment is in an AD domain environment, the server must be authorized by the AD domain before it can be used properly to avoid network failure caused by authorized DHCP services.

Scope:

Address range: a collection of IP address ranges assigned to a specified network range

Configuration options: other network information other than IP basic information assigned to the specified network scope

Scope effective: the local network connection and IP address of the DHCP server and the IP address of the network connection specified by the scope are in the same range (same broadcast domain and same subnet)

Multiple network ranges. You can configure multiple network cards in the DHCP server, connect different network broadcast ranges, and create multiple corresponding scopes to provide DHCP address services for the specified range.

Multiple network ranges, or a single network card can be configured in the DHCP server, but the network card must be connected to a routing device with DHCP relay agent service

Configure scope: defines the name of the specified scope (scope name)

Defines the range of IP addresses in a specified range

Define the lease cycle

Defines the IP address of a gateway for a specified range of networks

Configuration options: add different configuration option information according to the application requirements of different scopes

Server options-scope options-reserved

Global-current scope-specifies the effective scope of the computer

Retention-scope-server priority

Advanced deployment

High availability (failover)

Deployment requirements: two domain member servers that have installed and licensed DHCP services

Configuration: configure failover in any DHCP server

Updates to the DNS client of DHCP

You can configure the DHCP server to update DNS records for client computer agents

Add the DHCP server computer account in AD to the DNSUpdateProxy group