KICKSTART+HTTP+DHCP+TFTP Automatic bulk installation deployment in Linux systems

Description

Kickstart Server System: CentOS 5.10 64-bit

IP Address: 192.168.21.128

Need to install a deployed Linux system: CentOS 5.10 64-bit

Eth0 (first network card, for extranet) IP address segment: 192.168.21.160-192.168.21.200

ETH1 (second network card, for intranet) IP address segment: 10.0.0.160-10.0.0.200

Subnet Mask: 255.255.255.0

Gateway: 192.168.21.2

dns:8.8.8.8 8.8.4.4

All servers support PXE network boot

to achieve the purpose: deploy Linux systems in bulk by configuring Kickstart servers

Specific actions:

Part I: Operating in the Kickstart server system

First, close SELinux

Vi/etc/selinux/config

#SELINUX =enforcing #注释掉

#SELINUXTYPE =targeted #注释掉

Selinux=disabled #增加

: wq! #保存退出

Setenforce 0 #使配置立即生效

Second, configure the firewall, open tcp:80 port, udp:69 port

Vi/etc/sysconfig/iptables #编辑

-A rh-firewall-1-input-m state--state new-m tcp-p TCP--dport 80-j ACCEPT #http服务需要此端口

-A rh-firewall-1-input-m state--state new-m udp-p UDP--dport 69-j ACCEPT #tftp服务需要此端口

/etc/init.d/iptables Restart #最后重启防火墙使配置生效

Third, install HTTP server

Yum Install httpd #安装

Chkconfig httpd on #设置开机启动

Service httpd Start #启动

Four, mount system installation mirroring to the HTTP Server site Directory

Upload system installation image file Centos-5.10-x86_64-bin-dvd-1of2.iso to/usr/local/src/directory

Mkdir-p/var/www/html/os #创建挂载目录

Mount-t Iso9660-o Loop/usr/local/src/centos-5.10-x86_64-bin-dvd-1of2.iso/var/www/html/os #挂载系统镜像

Vi/etc/fstab #添加以下代码. Enable automatic mount on boot

/usr/local/src/centos-5.10-x86_64-bin-dvd-1of2.iso/var/www/html/os iso9660 defaults,ro,loop 0 0

: wq! #保存退出

Note: iso9660 use DF-T to view device uninstall: Umount/var/www/html/os

V. Installing a TFTP server

Yum Install TFTP tftp-server #安装

Vi/etc/xinetd.d/tftp #编辑

Service TFTP

{

Socket_type = Dgram

protocol = UDP

Wait = yes

user = root

Server =/USR/SBIN/IN.TFTPD

Server_args =-s/var/lib/tftpboot

Disable = no

Per_source = 11

CPS = 100 2

Flags = IPV4

}

: wq! #保存退出

Service xinetd Start #启动

Mkdir-p/var/lib/tftpboot

Cp/var/www/html/os/images/pxeboot/vmlinuz/var/lib/tftpboot

Cp/var/www/html/os/images/pxeboot/initrd.img/var/lib/tftpboot

Mkdir-p/var/lib/tftpboot/pxelinux.cfg

Cp/var/www/html/os/isolinux/isolinux.cfg/var/lib/tftpboot/pxelinux.cfg/default #拷贝启动菜单

Vi/var/lib/tftpboot/pxelinux.cfg/default #编辑修改

Default Linux

Prompt 0

Timeout 600

Display Boot.msg

F1 boot.msg

F2 options.msg

F3 general.msg

F4 param.msg

F5 rescue.msg

Label Linux

Kernel Vmlinuz

Append initrd=initrd.img ks=http://192.168.21.128/ks.cfg ksdevice=eth0 ip=dhcp

Label text

Kernel Vmlinuz

Append initrd=initrd.img Text

Label KS

Kernel Vmlinuz

Append KS initrd=initrd.img

Label Local

Localboot 1

Label Memtest86

Kernel memtest

Append-

: wq! #保存退出

chmod 644/var/lib/tftpboot/pxelinux.cfg/default #设置文件权限

Yum Install Syslinux #安装引导程序

cp/usr/share/syslinux/pxelinux.0/var/lib/tftpboot/#拷贝引导文件到tftp服务器根目录

Vi. Installing a DHCP server

Yum Install DHCP #安装

Cp/usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample/etc/dhcpd.conf #复制配置文件模板

Vi/etc/dhcpd.conf #编辑配置文件

Ddns-update-style Interim; #设置DHCP服务器模式

Ignore client-updates; #禁止客户端更新

Subnet 192.168.21.0 netmask 255.255.255.0 {#设置网段

Option routers 192.168.21.2; #设置网关

Option Subnet-mask 255.255.255.0; #设置子网掩码

Option Domain-name-servers 8.8.8.8,8.8.4.4; #设置dns服务器地址

Range DYNAMIC-BOOTP 192.168.21.160 192.168.21.200; #设置dhcp服务器IP地址租用的范围

Default-lease-time 21600; #默认租约时间

Max-lease-time 43200; #最大租约时间

Next-server 192.168.21.128; #tftp服务器地址

FileName "pxelinux.0"; #tftp服务器根目录下面的文件名

}

: wq! #保存退出

VI/ETC/SYSCONFIG/DHCPD #指定DHCP服务的网络接口

Dhcpdargs=eth0

: wq! #保存退出

DHCPD #测试dhcp服务器配置是否正确

Service DHCPD Start #启动dhcp服务

Chkconfig DHCPD on #设置开机启动

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Vii. Configuring Kickstart automatic installation files

Yum Install System-config-kickstart #安装工具包

Cd/var/www/html

VI ks.cfg #编辑

# Kickstart file automatically generated by Anaconda.

Install

URL--url=http://192.168.21.128/os/

Lang en_US. UTF-8

ZEROMBR Yes

Key--skip

Keyboard US

Network--device eth0--bootproto DHCP--onboot on

#network--device eth0--bootproto static--ip 192.168.21.250--netmask 255.255.255.0--gateway 192.168.21.2--nameserver 8.8.8.8--hostname CentOS5.10

ROOTPW--iscrypted $1$qqobzz1g$rynrawi9kyleeuuq1vcrs/

Firewall--enabled--port=22:tcp

Authconfig--enableshadow--ENABLEMD5

SELinux--disabled

TimeZone Asia/shanghai

Bootloader--LOCATION=MBR--DRIVEORDER=SDA

# The following is the partition information for you requested

# that ' any partitions ' deleted are not expressed

# Here I unless you clear all partitions the

# Not guaranteed to work

#clearpart--linux

Clearpart--all--initlabel

Part/--bytes-per-inode=4096--fstype= "ext3"--size=2048

Part/boot--bytes-per-inode=4096--fstype= "ext3"--size=128

Part swap--bytes-per-inode=4096--fstype= "swap"--size=500

Part/data--bytes-per-inode=4096--fstype= "ext3"--grow--size=1

Reboot

%packages

Ntp

Expect

@base

@core

@dialup

@editors

@text-internet

Keyutils

Trousers

Fipscheck

Device-mapper-multipath

%post

#同步系统时间

Ntpdate cn.pool.ntp.org

Hwclock--SYSTOHC

ECHO-E "0 1 * * * root/usr/sbin/ntpdate cn.pool.ntp.org >/dev/null" >>/etc/crontab

Service Crond Restart

#添加用户组

Groupadd Maintain

Groupadd Develop

Mkdir-p/home/maintain

Mkdir-p/home/develop

#添加用户

Useradd-g Maintain user01-d/home/maintain/user01-m

echo "123456" |passwd User01--stdin

Useradd-g Maintain user02-d/home/maintain/user02-m

echo "123456" |passwd user02--stdin

Useradd-g Maintain user03-d/home/maintain/user03-m

echo "123456" |passwd user03--stdin

Useradd-g Maintain user04-d/home/maintain/user04-m

echo "123456" |passwd user04--stdin

#禁止root用户直接登录系统

Sed-i "s/#PermitRootLogin yes/permitrootlogin no/g" '/etc/ssh/sshd_config '

Service sshd Restart

#禁止开机启动的服务

Chkconfig Acpid off

Chkconfig ATD Off

Chkconfig AutoFS off

Chkconfig bluetooth off

Chkconfig Cpuspeed off

Chkconfig Firstboot off

Chkconfig gpm Off

Chkconfig Haldaemon off

Chkconfig Hidd off

Chkconfig Ip6tables off

Chkconfig ISDN Off

Chkconfig Messagebus off

Chkconfig Nfslock off

Chkconfig PCSCD off

Chkconfig Portmap off

Chkconfig RPCGSSD off

Chkconfig RPCIDMAPD off

Chkconfig yum-updatesd off

Chkconfig SendMail off

#允许开机启动的服务

Chkconfig Crond on

Chkconfig kudzu on

Chkconfig Network on

Chkconfig readahead_early on

Chkconfig sshd on

Chkconfig syslog on

#禁止使用Ctrl +alt+del shortcut keys to restart the server

Sed-i "S/ca::ctrlaltdel:/sbin/shutdown-t3-r now/#ca:: Ctrlaltdel:/sbin/shutdown-t3-r now/g" '/etc/inittab '

Telinit Q

#优化系统内核

Echo-e "Ulimit-c Unlimited" >>/etc/profile

Echo-e "Ulimit-s Unlimited" >>/etc/profile

Echo-e "Ulimit-shn 65535" >>/etc/profile

Source/etc/profile

Sed-i "S/net.ipv4.ip_forward = 0/net.ipv4.ip_forward = 1/g" '/etc/sysctl.conf '

Echo-e "net.core.somaxconn = 262144" >>/etc/sysctl.conf

Echo-e "Net.core.netdev_max_backlog = 262144" >>/etc/sysctl.conf

Echo-e "Net.core.wmem_default = 8388608" >>/etc/sysctl.conf

Echo-e "Net.core.rmem_default = 8388608" >>/etc/sysctl.conf

Echo-e "Net.core.rmem_max = 16777216" >>/etc/sysctl.conf

Echo-e "Net.core.wmem_max = 16777216" >>/etc/sysctl.conf

Echo-e "Net.ipv4.netfilter.ip_conntrack_max = 131072" >>/etc/sysctl.conf

Echo-e "net.ipv4.netfilter.ip_conntrack_tcp_timeout_established = 180" >>/etc/sysctl.conf

Echo-e "net.ipv4.route.gc_timeout =" >>/etc/sysctl.conf

Echo-e "Net.ipv4.ip_conntrack_max = 819200" >>/etc/sysctl.conf

Echo-e "Net.ipv4.ip_local_port_range = 10024 65535" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_retries2 = 5" >>/etc/sysctl.conf

Echo-e "net.ipv4.tcp_fin_timeout = >>/etc/sysctl.conf"

Echo-e "net.ipv4.tcp_syn_retries = 1" >>/etc/sysctl.conf

Echo-e "net.ipv4.tcp_synack_retries = 1" >>/etc/sysctl.conf

Echo-e "net.ipv4.tcp_timestamps = 0" >>/etc/sysctl.conf

Echo-e "net.ipv4.tcp_tw_recycle = 1" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_tw_len = 1" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_tw_reuse = 1" >>/etc/sysctl.conf

Echo-e "net.ipv4.tcp_keepalive_time =/etc/sysctl.conf" >>

Echo-e "Net.ipv4.tcp_keepalive_probes = 3" >>/etc/sysctl.conf

Echo-e "NET.IPV4.TCP_KEEPALIVE_INTVL =" >>/etc/sysctl.conf

Echo-e "net.ipv4.tcp_max_tw_buckets = 36000" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_max_orphans = 3276800" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_max_syn_backlog = 262144" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_wmem = 8192 131072 16777216" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_rmem = 32768 131072 16777216" >>/etc/sysctl.conf

Echo-e "Net.ipv4.tcp_mem = 94500000 915000000 927000000" >>/etc/sysctl.conf

/sbin/sysctl-p

#执行外部脚本

Cd/root

wget http://192.168.21.128/autoip.sh

sh/root/autoip.sh

: wq! #保存退出

Eight, add script, automatically set Linux system static IP address, DNS, Gateway, computer name

Cd/var/www/html

VI autoip.sh #编辑

#!/bin/sh

route=$ (route-n|grep "^0.0.0.0" |awk ' {print $} ')

broadcast=$ (/sbin/ifconfig eth0|grep-i Bcast|awk ' {print $} ' |awk-f ': ' ' {print $} ')

hwaddr=$ (/sbin/ifconfig eth0|grep-i Hwaddr|awk ' {print $} ')

ipaddr=$ (/sbin/ifconfig eth0|grep "inet addr" |awk ' {print $} ' |awk-f ":" ' {print $} ')

netmask=$ (/sbin/ifconfig eth0|grep "inet addr" |awk ' {print $} ' |awk-f ': "' {print $} ')

Cat >/etc/sysconfig/network-scripts/ifcfg-eth0<<eof

Device=eth0

Bootproto=static

broadcast= $BROADCAST

Hwaddr= $HWADDR

Ipaddr= $IPADDR

netmask= $NETMASK

gateway= $ROUTE

Onboot=yes

Eof

ipaddr1=$ (Echo $IPADDR |awk-f "." ' {print $} ')

Cat >/etc/sysconfig/network-scripts/ifcfg-eth1<<eof

Device=eth1

Bootproto=static

broadcast=10.0.0.255

hwaddr=$ (/sbin/ifconfig eth1|grep-i Hwaddr|awk ' {print $} ')

ipaddr=10.0.0. $IPADDR 1

netmask=255.255.255.0

Onboot=yes

Eof

hostname=osyunwei_hz_$ (Echo $IPADDR |awk-f "." ' {print $} ')

Cat >/etc/sysconfig/network<<eof

Networking=yes

Networking_ipv6=no

Hostname= $HOSTNAME

gateway= $ROUTE

Eof

echo "127.0.0.1 $HOSTNAME" >>/etc/hosts

Hostname= $HOSTNAME

echo "NameServer 8.8.8.8" >/etc/resolv.conf

echo "NameServer 8.8.4.4" >>/etc/resolv.conf

: wq! #保存退出

Part Two: Set up the server to be installed from the network boot

After powering on, the system is installed automatically as shown in the following illustration

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Note: After the system installation is completed, the first boot please set to the hard disk, otherwise the system will automatically install the system again!