Windows Server Note (v): DHCP (3)

To remotely administer a DHCP server by using DHCP Manager:

This situation is not used much, only when multiple DHCP The server needs to be used, but as DHCP The use of failover is more and more, more and more convenient, the use will be more and more;

1 , open in Server Manager DHCP Manager, right-click the DHCP "Select" Add Server ";

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/70/EA/wKiom1XBaDGT5IaSAAFdF6h6s1g592.jpg "title=" A.png " alt= "Wkiom1xbadgt5iasaafdf6h6s1g592.jpg"/>

2 , add the server through browse, and select OK;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/EA/wKiom1XBaDzi3hqAAAEi8DfOKug344.jpg "title=" B.png " alt= "Wkiom1xbadzi3hqaaaei8dfokug344.jpg"/>

DHCP Fail-Over

DHCP Failover Overview:

in the Windows Server2008 R2 , in order to DHCP Server deployment provides two high-availability options :

Windowsin a failover clusterDHCP: is to put more than oneDHCPthe server is placed in a cluster when one of theDHCPwhen the server fails, it is caused by anotherDHCPThe server provides the clientDHCPservice. Despite the failover functionality, because the cluster needs to be stored, storage becomes a single point of failure, and if storage redundancy is required, this investment needs to be added. And the cluster also involves complex setup and maintenance.

SplitDHCPScope: SplitIPpool into different scopes distributed according to specific proportions in two separateDHCPon the server, if the client does not connect to one of the servers, it can be obtained from another serverIPaddress. But at the same time I thoughtIPThe reduction of the pool, which can be usedIPinsufficient address, need to reply to the failed server as soon as possible.

Windows Server in the DHCP failover enables administrators to deploy highly resilient DHCP services to support large enterprises without facing the issues discussed earlier.

Deployment DHCP Requirements for failover:

1 , to deploy DHCP Both servers of the failover cluster are running Windows Server or a later version of the system;

2 and cannot be created on more than two computers DHCP failover clustering, because data replication can only be done between two points;

3, can be a domain environment, can also be the environment of the workgroup; Because the demonstration is convenient, my environment here is the domain environment;

installation DHCP Failover:

Environment Introduction:

server1:activedirectory , DNS , DHCP (well-configured scopes)

Server2 :D HCP (no scope configured)

Note: Do not configure the same scope on both servers in the production environment, otherwise the configuration will be wrong; IPv4 , the time error for both servers cannot exceed one minute.

1 , open Server Manager, select Tools- DHCP The Open DHCP Manager;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/70/E6/wKioL1XBanqT4m6nAAKkXJINa-I367.jpg "title=" 1.PNG " alt= "Wkiol1xbanqt4m6naakkxjina-i367.jpg"/>

2 , in DHCP Manager, expand to the scope, and right-click to select "Configure Failover" to open the Configure Failover page;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/70/EA/wKiom1XBaQ3Sf2bKAAG3t0xyLT8859.jpg "title=" 2.PNG " alt= "Wkiom1xbaq3sf2bkaag3t0xylt8859.jpg"/>

If a right click appears gray (), first select the scope, expand;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/70/E7/wKioL1XBayORm4KtAAFAZJjOHxo802.jpg "title=" capture. PNG "alt=" Wkiol1xbayorm4ktaafazjjohxo802.jpg "/>

3 , on the Configure Failover page, select the scope to add, the lab environment, one scope, the default is all selected, if there are multiple scopes in the production environment, and you do not want to configure all failover, remove all selections, select the desired scopes, and then select Next;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/70/EA/wKiom1XBaTWzO9qlAAKtID1MoFg810.jpg "title=" 3.PNG " alt= "Wkiom1xbatwzo9qlaaktid1mofg810.jpg"/>

4 , in the Specify the partner server to use for failover page, select "Add Server";

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/E7/wKioL1XBaznSuO_HAAHaWkzIDwc728.jpg "title=" 4.PNG " alt= "Wkiol1xbaznsuo_haahawkzidwc728.jpg"/>

5 , on the Add Server page, browse to find another DHCP Server and select "OK";

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/EA/wKiom1XBaU3BwyS_AAEnA-N1mYY331.jpg "title=" 5.PNG " alt= "Wkiom1xbau3bwys_aaena-n1myy331.jpg"/>

6 , go back to the Partner server page that you specified to use for failover, and select "Next";

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/70/EA/wKiom1XBaVjz_Zh0AAHbBlwPAfY340.jpg "title=" 6.PNG " alt= "Wkiom1xbavjz_zh0aahbblwpafy340.jpg"/>

7 , according to the need, enter the corresponding information, and then select "Next";

Relationship Name: The friendly name of the failover relationship, custom;

Maximum client lead time: The failover server can be extended for devices that are already connected to a failed server DHCP The maximum period of the tenancy;

Mode: The mode of failover, there are two types:

a , load balancing (active / Active):

load Balancing hundred percent: Per server IP than the default of two is 50%

b , hot standby server (active / passive);

Status switch interval: The default is off, the startup setting, then the active DHCP not available for clients over a specific time IP the address automatically resets itself to the passive state, and the other server becomes active;

Enable message validation: Validation of data between failovers

Shared secret: If you have selected enable primary authentication, enter a password for the shared secret;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/70/EA/wKiom1XBaWSR7WmKAAHW3QCa1QQ304.jpg "title=" 7.PNG " alt= "Wkiom1xbawsr7wmkaahw3qca1qq304.jpg"/>

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/E7/wKioL1XBa2axL0LKAAHf_FBxr4c548.jpg "title=" 7b. PNG "alt=" Wkiol1xba2axl0lkaahf_fbxr4c548.jpg "/>

8 , the previous settings are shown here, and if there is no problem, select "Done";

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/70/E7/wKioL1XBa4XDL_sZAAJyuuKGrvQ371.jpg "title=" 8.PNG " alt= "Wkiol1xba4xdl_szaajyuukgrvq371.jpg"/>

9, the configuration is complete, select "Off";

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/70/E7/wKioL1XBa93RjFKyAAGO4VilE9E324.jpg "title=" 9.PNG " alt= "Wkiol1xba93rjfkyaago4vile9e324.jpg"/>

10. Now you can see that the scope is complex to another server;

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/70/E7/wKioL1XBbAXwVw3RAAFoJgQxAzk608.jpg "title=" 10.PNG "alt=" Wkiol1xbbaxwvw3raafojgqxazk608.jpg "/>

This article is from the "Snow Orchid" blog, please be sure to keep this source http://yupeizhi.blog.51cto.com/3157367/1681783

Windows Server Note (v): DHCP (3)