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人生三从境界：昨夜西风凋碧树，独上高楼，望尽天涯路。 衣带渐宽终不悔，为伊消得人憔悴。 众里寻他千百度，蓦然回首，那人却在灯火阑珊处。

kickstart一键装机部署

1.第一步安装DHCP

yum -y install dhcp

1.1配置修改文件

cat >> /etc/dhcp/dhcpd.conf <<END
subnet 172.16.1.0 netmask 255.255.255.0 {
range 172.16.1.100 172.16.1.200;
option subnet-mask 255.255.255.0;
default-lease-time 21600;
max-lease-time 43200;
next-server 172.16.1.61;
filename "/pxelinux.0";
}
END
#注释
range 172.16.1.120 172.16.1.200; # 可分配的起始IP-结束IP
option subnet-mask 255.255.255.0; # 设定netmask
default-lease-time 21600; # 设置默认的IP租用期限
max-lease-time 43200; # 设置最大的IP租用期限
next-server 172.16.1.61; # 告知客户端TFTP服务器的ip
filename "/pxelinux.0"; # 告知客户端从TFTP根目录下载pxelinux.0文件

2.第二步TFTP服务安装

yum -y install tftp-server
sed -i.ori '14s#yes#no#' /etc/xinetd.d/tftp
/etc/init.d/xinetd start

 

3.配置支持PXE的启动程序

yum -y install syslinux
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/

4.安装httpd服务

yum -y install httpd #安装
sed -i "277i ServerName 127.0.0.1:80" /etc/httpd/conf/httpd.conf #sed修改配置文件
mkdir /var/www/html/CentOS6.9 #创建一个系统挂载目录
mount /dev/cdrom /var/www/html/CentOS6.9/ #挂载磁盘到系统文件目录
cp -a /var/www/html/CentOS6.9/isolinux/* /var/lib/tftpboot/ #复制系统配置文件到启动程序目录
mkdir -p /var/lib/tftpboot/pxelinux.cfg #创建启动文件 
cp /var/www/html/CentOS6.9/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default

5.配置编写启动文件和优化脚本

[root@m01 ks_config]# pwd
/var/www/html/ks_config
[root@m01 ks_config]# ls
CentOS-6.9-ks.cfg epel.repo optimization.sh sysctl.conf
CentOS-Base.repo hosts sshd_config
[root@m01 ks_config]#

1. 启动文件CentOS-6.9-ks.cfg

cat >/var/www/html/ks_config/CentOS-6.9-ks.cfg <<END
install
url --url="http://172.16.1.61/CentOS6.9/"
text
lang en_US.UTF-8
keyboard us
zerombr
bootloader --location=mbr --driveorder=sda --append="crashkernel=auto rhgb quiet"
network --bootproto=dhcp --device=eth1 --onboot=yes --noipv6 --hostname=CentOS6
timezone --utc Asia/Shanghai
authconfig --enableshadow --passalgo=sha512
rootpw --iscrypted $6$X20eRtuZhkHznTb4$dK0BJByOSAWSDD8jccLVFz0CscijS9ldMWwpoCw/ZEjYw2BTQYGWlgKsn945fFTjRC658UXjuocwJbAjVI5D6/
clearpart --all --initlabel
part /boot --fstype=ext4 --asprimary --size=200
part swap --size=1024
part / --fstype=ext4 --grow --asprimary --size=200
firstboot --disable
selinux --disabled
firewall --disabled
logging --level=info
reboot

%packages
@base
@compat-libraries
@debugging
@development
tree
nmap
sysstat
lrzsz
dos2unix
telnet

%post
wget -O /tmp/optimization.sh http://172.16.1.61/ks_config/optimization.sh &>/dev/null
/bin/sh /tmp/optimization.sh
%end
END
View Code　　

2. 优化脚本optimization.sh 

[root@m01 ks_config]# cat optimization.sh 
#!/bin/bash
. /etc/init.d/functions

Ip=172.16.1.61
Port=80
ConfigDir=ks_config

# Judge Http server is ok?
PortNum=`nmap $Ip -p $Port 2>/dev/null|grep open|wc -l`
[ $PortNum -lt 1 ] && {
echo "Http server is bad!"
exit 1
}

# Defined result function
function Msg(){
if [ $? -eq 0 ];then
action "$1" /bin/true
else
action "$1" /bin/false
fi
}

# Defined IP function
function ConfigIP(){
Suffix=`ifconfig eth1|awk -F "[ .]+" 'NR==2 {print $6}'`
cat >/etc/sysconfig/network-scripts/ifcfg-eth0 <<-END
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
IPADDR=10.0.0.$Suffix
PREFIX=24
GATEWAY=10.0.0.254
DNS1=10.0.0.254
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
END
Msg "config eth0"
cat >/etc/sysconfig/network-scripts/ifcfg-eth1 <<-END
DEVICE=eth1
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
IPADDR=172.16.1.$Suffix
PREFIX=24
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth1"
END
Msg "config eth1"
}

# Defined Yum source Functions
function yum(){
YumDir=/etc/yum.repos.d
[ -f "$YumDir/CentOS-Base.repo" ] && cp $YumDir/CentOS-Base.repo{,.ori} 
wget -O $YumDir/CentOS-Base.repo http://$Ip:$Port/$ConfigDir/CentOS-Base.repo &>/dev/null &&\
wget -O $YumDir/epel.repo http://$Ip:$Port/$ConfigDir/epel.repo &>/dev/null &&\
Msg "YUM source"
}


# Defined add Ordinary users Functions
function AddUser(){
useradd oldboy &>/dev/null &&\
echo "123456"|passwd --stdin oldboy &>/dev/null &&\
sed -i '98a oldboy ALL=(ALL) NOPASSWD:ALL' /etc/sudoers &&\
visudo -c &>/dev/null
Msg "AddUser oldboy"
}

# Defined Hide the system version number Functions
function HideVersion(){
[ -f "/etc/issue" ] && >/etc/issue
Msg "Hide issue"
[ -f "/etc/issue.net" ] && > /etc/issue.net
Msg "Hide issue.net"
}


# Defined SSHD config Functions
function sshd(){
SshdDir=/etc/ssh
[ -f "$SshdDir/sshd_config" ] && /bin/mv $SshdDir/sshd_config{,.ori}
wget -O $SshdDir/sshd_config http://$Ip:$Port/$ConfigDir/sshd_config &>/dev/null &&\
chmod 600 $SshdDir/sshd_config
Msg "sshd config"
}

# Defined OPEN FILES Functions
function openfiles(){
[ -f "/etc/security/limits.conf" ] && {
echo '* - nofile 65535' >> /etc/security/limits.conf
Msg "open files"
}
}

# Defined Kernel parameters Functions
function kernel(){
KernelDir=/etc
[ -f "$KernelDir/sysctl.conf" ] && /bin/mv $KernelDir/sysctl.conf{,.ori}
wget -O $KernelDir/sysctl.conf http://$Ip:$Port/$ConfigDir/sysctl.conf &>/dev/null
Msg "Kernel config"
}

# Defined hosts file Functions
function hosts(){
HostsDir=/etc
[ -f "$HostsDir/hosts" ] && /bin/mv $HostsDir/hosts{,.ori}
wget -O $HostsDir/hosts http://$Ip:$Port/$ConfigDir/hosts &>/dev/null
Msg "Hosts config"
}

# Defined System Startup Services Functions
function boot(){
for oldboy in `chkconfig --list|grep "3:on"|awk '{print $1}'|grep -vE "crond|network|rsyslog|sshd"`
do 
chkconfig $oldboy off
done
Msg "BOOT config"
}

# Defined Time Synchronization Functions
function Time(){
echo "#time sync by zhangyao at $(date +%F)" >>/var/spool/cron/root
echo '*/5 * * * * /usr/sbin/ntpdate ntp1.aliyun.com &>/dev/null' >>/var/spool/cron/root
Msg "Time Synchronization"
}

# Defined main Functions
function main(){
ConfigIP
yum
#AddUser
HideVersion
#sshd
openfiles
kernel
hosts
boot
Time    
}

main
View Code

3.优化内核文件 sysctl.conf 

# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

# Disable netfilter on bridges.
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0

# Controls the default maxmimum size of a mesage queue
kernel.msgmnb = 65536

# Controls the maximum size of a message, in bytes
kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes
kernel.shmmax = 68719476736

# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296
net.ipv4.tcp_fin_timeout = 2
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_keepalive_time = 600
net.ipv4.ip_local_port_range = 4000 65000
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_max_tw_buckets = 36000
net.ipv4.route.gc_timeout = 100
net.ipv4.tcp_syn_retries = 1
net.ipv4.tcp_synack_retries = 1
net.core.somaxconn = 16384
net.core.netdev_max_backlog = 16384
net.ipv4.tcp_max_orphans = 16384
[root@m01 ks_config]#
View Code

4. yum源文件

[root@m01 ks_config]# cat CentOS-Base.repo 
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6

#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6
View Code

5.epel源文件

[root@m01 ks_config]# cat epel.repo 
[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
baseurl=http://mirrors.aliyun.com/epel/6/$basearch
http://mirrors.aliyuncs.com/epel/6/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

[epel-debuginfo]
name=Extra Packages for Enterprise Linux 6 - $basearch - Debug
baseurl=http://mirrors.aliyun.com/epel/6/$basearch/debug
http://mirrors.aliyuncs.com/epel/6/$basearch/debug
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-6&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
gpgcheck=0

[epel-source]
name=Extra Packages for Enterprise Linux 6 - $basearch - Source
baseurl=http://mirrors.aliyun.com/epel/6/SRPMS
http://mirrors.aliyuncs.com/epel/6/SRPMS
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-6&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
gpgcheck=0
View Code

6. ssh优化文件

[root@m01 ks_config]# cat sshd_config 
#    $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 djm Exp $

# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options change a
# default value.
Port 52113
PermitRootLogin no
PermitEmptyPasswords no
UseDNS no
GSSAPIAuthentication no
#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

# Disable legacy (protocol version 1) support in the server for new
# installations. In future the default will change to require explicit
# activation of protocol 1
Protocol 2

# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key

# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024

# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV
#LogLevel INFO

# Authentication:

#LoginGraceTime 2m
#PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10

#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile    .ssh/authorized_keys
#AuthorizedKeysCommand none
#AuthorizedKeysCommandRunAs nobody

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes

# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
PasswordAuthentication yes

# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes
ChallengeResponseAuthentication no

# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
#KerberosUseKuserok yes

# GSSAPI options
#GSSAPIAuthentication no
GSSAPIAuthentication yes
#GSSAPICleanupCredentials yes
GSSAPICleanupCredentials yes
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no

# Set this to 'yes' to enable PAM authentication, account processing, 
# and session processing. If this is enabled, PAM authentication will 
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
#UsePAM no
UsePAM yes

# Accept locale-related environment variables
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS

#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none

# no default banner path
#Banner none

# override default of no subsystems
Subsystem    sftp    /usr/libexec/openssh/sftp-server

# Example of overriding settings on a per-user basis
#Match User anoncvs
#    X11Forwarding no
#    AllowTcpForwarding no
#    ForceCommand cvs server
[root@m01 ks_config]#
View Code

6.新建一个空白的虚拟机

纯机器不需要挂载镜像，选中所在的局域网所在的LAN区段
两个网卡DNS模式，其中一个选择LAN区段就ok
然后开机测试等待安装完成。








 

posted @ 2019-05-13 11:22  运维生存录  阅读(306)  评论(0)  编辑  收藏  举报