Configure DHCP server

Configure DHCP server

I. Installation

Yum install dhcpd-y

Ii. Configuration

[Root @ server03/] # rpm-qc dhcp

The dhcp configuration file is displayed.

[Root @ server03/] # vim/etc/dhcp/dhcpd. conf

Change configuration file

Option domain-name "example.com"; # specifies the domain name, indicating the domain of the DHCP server;

Default-lease-time 600;

Max-lease-time 7200; # lease period, 600 7200 is the default time, if not written, the effect is the same

Log-facility local7; # log

Subnet 192.168.4.0 netmask 255.255.255.0 {# specify the network segment

Range 192.168.4.130 192.168.4.132; # address range

}

Save and exit

Restart the hdcp service and set another virtual machine as a bridge to restart the network. You can obtain the IP address 192.168.4.131 allocated by dhcp.

On the dhcp server,

Run tail-f/var/log/messages to view dynamic log files and dhcp request messages.

Open the configuration file:

[Root @ server03/] # vim/etc/dhcp/dhcpd. conf

Add

Option routers 192.168.4.254; # Gateway

Option domain-name-servers 192.168.4.103; # dns Server

Restart the dhcpd client and restart the network to obtain the address of the gateway and dns server.

[Root @ localhost Desktop] # vim/etc/resolv. conf

You can see:

# Generated by NetworkManager

Domain example.com

Search example.com

Nameserver 192.168.4.103

Address binding:

Open the configuration file:

[Root @ server03/] # vim/etc/dhcp/dhcpd. conf

Add:

Host fantasia {

Hardware ethernet 00: 0C: 29: 60: 31: B7

Fixed-address 192.168.4.133 # The address should be out of the address pool above to prevent conflict

}

Restart the DHCP Client and restart the network. Check the ip address. The ip address is changed to the binding address just set.

OK!