pxe安装KS文件--实现优化IP分配

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 you requested

# Note that any partitions you deleted are not expressed

# here so unless you clear all partitions first, this is

# 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快捷键重启服务器

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 = 20" >> /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 = 30" >> /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 = 120" >> /etc/sysctl.conf

echo -e "net.ipv4.tcp_keepalive_probes = 3" >> /etc/sysctl.conf

echo -e "net.ipv4.tcp_keepalive_intvl = 15" >> /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

添加脚本，自动设置Linux系统静态IP地址、DNS、网关、计算机名称

cd /var/www/html

vi autoip.sh #编辑

#!/bin/sh

ROUTE=$(route -n|grep "^0.0.0.0"|awk '{print $2}')

BROADCAST=$(/sbin/ifconfig eth0|grep -i bcast|awk '{print $3}'|awk -F":" '{print $2}')

HWADDR=$(/sbin/ifconfig eth0|grep -i HWaddr|awk '{print $5}')

IPADDR=$(/sbin/ifconfig eth0|grep "inet addr"|awk '{print $2}'|awk -F":" '{print $2}')

NETMASK=$(/sbin/ifconfig eth0|grep "inet addr"|awk '{print $4}'|awk -F":" '{print $2}')

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 $4}')

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 $5}')

IPADDR=10.0.0.$IPADDR1

NETMASK=255.255.255.0

ONBOOT=yes

EOF

HOSTNAME=OsYunWei_HZ_$(echo $IPADDR|awk -F"." '{print $4}')

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