第8周知识重点

实验：PAM
authenticator 身份验证器

sed -i 's/^server.*/#&/;1aserver 192.168.39.8 iburst' /etc/chrony.conf

实验：chrony 和ntp

实验：kickstart文件生成,system-config-kickstart
半自动化安装centos6,7,8 mini 安装

实验：dhcp服务
[root@centos8 dhcp]#grep -v "^#" dhcpd.conf
option domain-name "magedu.org";
option domain-name-servers 180.76.76.76, 114.114.114.114;
default-lease-time 86400;
max-lease-time 100000;
log-facility local7;
subnet 192.168.39.0 netmask 255.255.255.0 {
range 192.168.39.10 192.168.39.100;
range 192.168.39.150 192.168.39.200;
option routers 192.168.39.2;
}
host test {
hardware ethernet 00:0c:29:58:4f:12;
fixed-address 192.168.39.120;
}

实验：tftp 服务

实验：基于CentOS8 的PXE安装自动化安装centos6,7,8

1 dnf install dhcp-server tftp-server httpd syslinux-nonlinux

2 systemctl enable --now httpd tftp dhcpd

3 准备yum仓库
mkdir /var/www/html/centos/{6,7,8}/isos/x86_64/ -pv
mount /dev/sr0 /var/www/html/centos/8/isos/x86_64/

[p]4准备ks文件
mkdir /var/www/html/ksdir/
[root@centos8 ksdir]#grep -Ev "^#|^$" /var/www/html/ksdir/ks8.cfg
ignoredisk --only-use=sda
zerombr
text
reboot
clearpart --all --initlabel
selinux --disabled
firewall --disabled
url --url=http://192.168.39.8/centos/8/isos/x86_64/
keyboard --vckeymap=us --xlayouts='us'
lang en_US.UTF-8
network --bootproto=dhcp --device=ens160 --ipv6=auto --activate
network --hostname=centos8.magedu.com
rootpw --iscrypted $6$nOPs5JTMlP4mhQeW$R/o62B6SXAh3RR.zrZ3U0X4xYX9/u5nSLrR/vqCB6kdO2XFfMk2a4yAgrHJQpXK/e4jzRb0jiLBv2nFMXaBjB/
firstboot --enable
skipx
services --disabled="chronyd"
timezone Asia/Shanghai --isUtc --nontp
user --name=wang --password=$6$oUfb/02CWfLb5l8f$sgEZeR7c7DpqfpmFDH6huSmDbW1XQNR4qKl2EPns.gOXqlnAIgv9pTogtFVaDtEpMOC.SWXKYqxfVtd9MCwxb1 --iscrypted --gecos="wang"
part / --fstype="xfs" --ondisk=sda --size=102400
part /data --fstype="xfs" --ondisk=sda --size=51200
part swap --fstype="swap" --ondisk=sda --size=2048
part /boot --fstype="ext4" --ondisk=sda --size=1024[url=mailto:br/>%packages
@^minimal-environment%packages
@^minimal-environment@^minimal-environment@^minimal-environment