The entire process of configuring the DHCP server in CentOS5.4

First, check whether the DHCP service is installed: [root @ DHCPserver] # rpm-qdhcppackagedhcpisnotinstalled puts the disc into the optical drive and mounts it through the mount command. [Root @ DHCPserver] # mountdevcdrommntmount: blockdevicedevcdromiswrite-protected, mountingread-on first check whether the DHCP service is installed:
[Root @ DHCPserver/] # Rpm-q dhCp
Package dhcp is not install Ed
Put the CD in the optical drive and mount it CommandAttach.
[Root @ DHCPserver/] # Mount/dev/CdRom/mnt
Mount: block device/dev/cdrom is Write-Protected, mounting read-only
[Root @ DHCPserver/] # Cd/mnt/CentOS/
[Root @ DHCPserver CentOS] # Ls| GrepDhcp // view the keyword "dhcp" File
Dhcp-3.0.5-21.el5.i386.rpm
Dhcp-devel-3.0.5-21.el5.i386.rpm
Dhcpv6-1.0.10-17.el5.i386.rpm
Dhcpv6-client-1.0.10-17.el5.i386.rpm
Libdhcp-1.20-10.el5.i386.rpm
Libdhcp4client-3.0.5-21.el5.i386.rpm
Libdhcp4client-devel-3.0.5-21.el5.i386.rpm
Libdhcp6client-1.0.10-17.el5.i386.rpm
Libdhcp6client-devel-1.0.10-17.el5.i386.rpm
Libdhcp-devel-1.20-10.el5.i386.rpm
Sblim- CmpI-dhcp-0.5.5-35.el5.i386.rpm
Sblim-cmpi-dhcp-devel-1-35.el5.i386.rpm
Sblim-cmpi-dhcp-test-1-35.el5.i386.rpm
------------------ Annotation ----------------------
Dhcp-* DHCP server software package
Dhclient-* DHCP Client Software Package
Dhcp-devel-* DHCP development tool, not required
--------------------------------------------
There is a DHCP installation package in this directory. Run the rpm command to install it. [Root @ DHCPserver CentOS] # Rpm-ivh dhcp-3.0.5-21.el5.i386.rpm
Warning: dhcp-3.0.5-21.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID e8562897
Preparing... ######################################## ### [100%]
1: dhcp ####################################### #### [100%] After installation, check whether the tool is installed on the machine. [Root @ DHCPserver CentOS] # Rpm-q dhcp
The dhcp-3.0.5-21.el5 has a template under the installation directory ( /Usr/share/doc/dhcp-3.0.5/dhcpd. conf. sample), Overwrite the data by using the CP command.
[Root @ DHCPserver CentOS] # Cp/usr/share/doc/dhcp-3.0.5/dhcpd. conf. sample/etc/dhcpd. conf
Cp: overwrite "/etc/dhcpd. conf "? YUse vi to enter the dhcpd. conf configuration file for configuration.
[Root @ DHCPserver CentOS] # vi/etc/dhcpd. conf
 

 
 

  
  
DdNs-upDate-Style interim; # configure to use the transitional DHCP-DNS interactive update mode.
  
  
Ignore client-updates; # ignore client updates
  
  
 
  
  
 
  
  
SuBnet 192.168.1.0 netmask 255.255.255.0 {
  
  
 
  
  
Option routers 192.168.1.1; # vro address
  
  
Option subnet-mask limit 255.0; # subnet mask option
  
  
 
  
  
Option nis-domain \ "xfbaydhcp.com \";
  
  
Option domain-name \ "xfbaydhcp.com \"; # domain name
  
  
Option domain-name-servers 202.102.152.3; # DNS address
  
  
 
  
  
OptionTime-OffSet-18000; # Eastern Standard Time
  
  
 
  
  
Range dynamic-bootp 192.168.1.100 192.168.1.200; # the range of the rented IP Address
  
  
Default-lease-time 21600; # default lease time
  
  
Max-lease-time 43200; # maximum lease time
  
  
 
  
  
# We want the nameserver to appear at a fixed address
  
  
Host ns {
  
  
NExT-server marvin.RedHat.com;
  
  
Hardware ethernet 12: 34: 56: 78: AB: CD;
  
  
Fixed-address 207.175.42.254;
  
  
}
  
  
}
 
 

After the configuration is complete, the DHCP service is set up and you can start the service. [Root @ DHCPserver CentOS] # service dhcpd start ----------------------- comment ----------------- Service dhcpd start # start the service Service dhcpd stop # stop the service Service dhcpd restart # restart the service
----------------------------------------------

Linux client:
Modify the file for the ifcfg-eth0, change the BOOTPROTO option to DHCP, and get it automatically.
[Root @ localhost ~] # Vi/etc/sysconfig/network-scripts/ifcfg-eth0
# AdvaNcEd Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE = eth0
BOOTPROTO =Dhcp
HWADDR = 00: 0C: 29: D1: 8D: D2
ONBOOT = dhcp
Restart the network service
[Root @ localhost ~] # Service network restart
PassIfconfigCommand to see that the IP address has been obtained

 
 

  
  
eth0      Link encap:Ethernet  HWaddr 00:0C:29:D1:8D:D2      
  
  
          inet addr:192.168.1.101 Bcast:192.168.1.1  Mask:255.255.255.0    
  
  
          inet6 addr: fe80::20c:29ff:fed1:8dd2/64 Scope:Link    
  
  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1    
  
  
          RX packets:2093 errors:2 dropped:0 overruns:0 frame:0    
  
  
          TX packets:634 errors:0 dropped:0 overruns:0 carrier:0    
  
  
          collisions:0 txqueuelen:1000     
  
  
          RX bytes:184237 (179.9 KiB)  TX bytes:73399 (71.6 KiB)    
  
  
          Interrupt:169 Base address:0x2000     
  
  
   
  
  
lo        Link encap:Local Loopback      
  
  
          inet addr:127.0.0.1  Mask:255.0.0.0    
  
  
          inet6 addr: ::1/128 Scope:Host    
  
  
          UP LOOPBACK RUNNING  MTU:16436  Metric:1    
  
  
          RX packets:1129 errors:0 dropped:0 overruns:0 frame:0    
  
  
          TX packets:1129 errors:0 dropped:0 overruns:0 carrier:0