LVS
nat服务器（作时间服务器）
root@localhost \~\]# systemctl stop firewalld \[root@localhost \~\]# setenforce 0 \[root@localhost \~\]# yum -y install ntpdate \[root@localhost \~\]# ntpdate cn.ntp.org.cn \[root@localhost \~\]# which ntpdate \[root@localhost \~\]# crontab -e \* 2 \* \* \* /usr/sbin/ntpdate cn.ntp.org.cn \[root@localhost \~\]# yum -y install ntp \[root@localhost \~\]# systemctl start ntpd \[root@localhost \~\]# systemctl enable ntpd 配置规则 \[root@localhost \~\]# yum -y install ipvsadm \[root@localhost \~\]# ipvsadm -A -t 192.168.1.43:80 -s rr \[root@localhost \~\]# ipvsadm -A -t 192.168.1.42:80 -s rr \[root@localhost \~\]# ipvsadm -a -t 192.168.1.42:80 -r 192.168.1.40:80 -m \[root@localhost \~\]# ipvsadm -a -t 192.168.1.42:80 -r 192.168.1.41:80 -m dns服务器 \[root@localhost \~\]# yum -y install bind \[root@localhost \~\]# vim /etc/named.conf listen-on port 53 { 127.0.0.1;any; }; allow-query { localhost;any; }; \[root@localhost \~\]# vim /etc/named.rfc1912.zones zone "yu.feng" IN { type master; file "yu.feng.zone"; allow-update { none; }; }; \[root@localhost \~\]# cp -p /var/named/named.localhost /var/named/yu.feng.zone \[root@localhost \~\]# vim /var/named/yu.feng.zone nat A 192.168.1.42 ds A 192.168.1.43 web A 192.168.1.40 web2 A 192.168.1.41 \[root@localhost \~\]# systemctl start named \[root@localhost \~\]# yum -y install ntpdate \[root@localhost \~\]# crontab -e 30 2 \* \* \* /usr/sbin/ntpdate 192.168.1.42 \[root@localhost \~\]# ntpdate cn.ntp.org.cn web服务器 \[root@localhost \~\]# systemctl stop firewalld \[root@localhost \~\]# setenforce 0 \[root@localhost \~\]# yum -y install nginx \[root@localhost \~\]# nginx \[root@localhost \~\]# yum -y install ntpdate \[root@localhost \~\]# crontab -e 30 2 \* \* \* /usr/sbin/ntpdate 192.168.1.42 \[root@localhost \~\]# ntpdate cn.ntp.org.cn