Shulou(Shulou.com)06/02 Report--

1. Configure DHCP server

Preparatory work:

1. Close selinux

2. Turn off the firewall

3. Synchronous clock

Step 1: install the package

Yum install dhcp

Rpm-ql dhcp

Step 2: start the service

Cannot start without configuration file

Check the systemctl status dhcp.service to determine the problem

Cp/ usr/share/doc/dhcp-4.2.5/dhcpd.conf.example / etc/dhcp/dhcpd.conf

Step 3: modify the configuration file: vim / etc/dhcp/dhcpd.conf Note: each line must have a semicolon

Subnet 172.31.0.0 netmask 255.255.255.0 {

Range 172.31.0.100 172.31.0.200

Option routers 172.31.0.254

Option domain-name-servers 114.114.114.114,8.8.8.8

Option domain-name "magedu.org"

Next-server 172.31.0.1;-tftp server address

Filename "pxelinux.0";-the name of the boot file to download. The default name is pxelinux.0

}

Systemctl start dhcpd

View port: ss-ntulp, port number is 68

Systemctl enable dhcpd

Test: check that the server is assigned address information:

Cat / var/lib/dhcpd/dhcpd.leases

Check the client to get the address information: / var/lib/dhclient/dhclient-eth2.leases

View port: ss-ntulp, port number is 69

Realize the allocation of information such as fixed addresses to some devices

Configure the tftp server

1. Installation package: yum install tftp-server

Note that centos6 is a non-independent service, and chkconfig tftp on; service xinetd start is required to start the service.

2. Query the list of installation files: rpm-ql tftp-server shared directory is: / var/lib/tftpboot startup service: systemctl start tftp.service Note: it is the separation of service and socket. If the service is stopped, port 69 is still in the listening state. View port: ss-ntulp, port number 69 client installation: yum install tftp Settings Boot: method 1: systemctl enable tftp

3. Configure http service

Cd / var/www/html/

Mkdir centos {6jue 7} / os/x86_64-pv

Mkdri ksdir/centos {6jue 7} /-p

Mount the 6x7 CD to the corresponding directory, save it to / etc/fstab, and mount it automatically.

Cp ks6.cfg ksdir/centos6/ Note: the http address written in the answer file needs to be on the same network segment as the dhcp service.

Cp ks7.cfg ksdir/centos7/ Note: the http address written in the answer file needs to be on the same network segment as the dhcp service.

Make sure syslinux is installed, rpm-ql syslinux | grep pxelinux.0

Rpm-ql syslinux | grep menu.c32

Prepare the files related to PXE startup: pexlinux.0,menu.32,vmlinux,initrd.img,pxelinux.cfg/default

Open the cd / var/lib/tftpboot directory

Cp / usr/share/syslinux/pxelinux.0 / var/lib/tftpboot/

Cp / usr/share/syslinux/menu.c32 / var/lib/tftpboot/

Mkdir / var/lib/tftpboot/centos {6,7}

Cp / var/www/html/centos/6/os/x86_64/isolinux/ {vmlinuz,initrd.img} / var/lib/tftpboot/centos6

Cp / var/www/html/centos/7/os/x86_64/isolinux/ {vmlinuz,initrd.img} / var/lib/tftpboot/centos7

Mkdir / var/lib/tftpboot/pxelinux.cfg

Cp / var/www/html/centos/7/os/x86_64/isolinux/isolinux.cfg / var/lib/tftpboot/pxelinux.cfg/default

Vim / var/lib/tftpboot/pxelinux.cfg/default New Virtual Machine Test Note: centos7 memory must be set to more than 1.5g

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.