Configure the DHCP server and dhcp server

Configure the DHCP server and 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!

 

How to configure a dhcp server

For Windows systems, do the following:
Choose "start"> "Control Panel"> "add or delete program"> "network service" (you can double-click or click Details)> "Dynamic Host Configuration Protocol .. Then wait for the installation. After the installation is complete, you can see DHCP in the management tool !!
For a Linux system, follow these steps:
1. Attach the disc first # mount/dev/cdrom/media

2. then install the DHCP Server Installation Package # rpm-ivh/media/Server/dhcp-3.0.5-3.el5.i386.rpm

3. Copy the configuration sample file of the dhcp server to/etc and change it to dhcpd. conf.
# Cd/usr/share/doc/dhcp-3.0.5/
# Cp dhcpd. conf. sample/etc/dhcpd. conf this step will show whether to overwrite or not, just write y.

4. modify the configuration file of the dhcp server: # vim/etc/dhcpd. conf
In this step, I cannot insert an image. I will explain the following points to modify:
(1) option routers IP Address
Purpose: Specify the default gateway for the client.
(2) option subnet-mask subnet mask
Purpose: set the subnet mask of the client.
(3) option domain-name-servers IP Address
Purpose: Specify the DNS server address for the client.

5. Start the dhcp server: # service dhcpd restart
If possible, perform the following steps:
# Iptables-F clear firewall rules

Now, go to the client to automatically obtain the IP address !!

If you are a fool routing, you can start the DHCP service and there is nothing to do with it.

If you still do not understand, please contact me, I will give you information... QQ--651750543

Please add some points. It took a lot of effort !! Thank you !!

How to configure a dhcp server

For Windows systems, do the following:
Choose "start"> "Control Panel"> "add or delete program"> "network service" (you can double-click or click Details)> "Dynamic Host Configuration Protocol .. Then wait for the installation. After the installation is complete, you can see DHCP in the management tool !!
For a Linux system, follow these steps:
1. Attach the disc first # mount/dev/cdrom/media

2. then install the DHCP Server Installation Package # rpm-ivh/media/Server/dhcp-3.0.5-3.el5.i386.rpm

3. Copy the configuration sample file of the dhcp server to/etc and change it to dhcpd. conf.
# Cd/usr/share/doc/dhcp-3.0.5/
# Cp dhcpd. conf. sample/etc/dhcpd. conf this step will show whether to overwrite or not, just write y.

4. modify the configuration file of the dhcp server: # vim/etc/dhcpd. conf
In this step, I cannot insert an image. I will explain the following points to modify:
(1) option routers IP Address
Purpose: Specify the default gateway for the client.
(2) option subnet-mask subnet mask
Purpose: set the subnet mask of the client.
(3) option domain-name-servers IP Address
Purpose: Specify the DNS server address for the client.

5. Start the dhcp server: # service dhcpd restart
If possible, perform the following steps:
# Iptables-F clear firewall rules

Now, go to the client to automatically obtain the IP address !!

If you are a fool routing, you can start the DHCP service and there is nothing to do with it.

If you still do not understand, please contact me, I will give you information... QQ--651750543

Please add some points. It took a lot of effort !! Thank you !!