安装Apache服务并配置端口为9999，添加新的默认页面sorry.html，在默认页面下不能访问的情况下显示“很抱歉...“,并配置三台虚拟主机，用基于ip的方式配置

[root@localhost ~]# yum install httpd -y

[root@localhost ~]# yum install httpd-manual

[root@localhost ~]# systemctl start httpd

[root@localhost ~]# systemctl enable httpd

[root@localhost ~]# firewall-cmd  --list-all 

[root@localhost ~]# firewall-cmd  --permanent  --add-service=http  

[root@localhost ~]# firewall-cmd  --reload  

[root@localhost ~]# rpm -qa |grep httpd

[root@localhost ~]# vim /var/www/html/index.html

 [root@localhost ~]# cd /etc/httpd/conf
[root@localhost conf]# ls 
httpd.conf   magic
[root@localhost conf]# vim httpd.conf 

[root@localhost conf]# firewall-cmd --permanent add-port=9999/tcp 
[root@localhost conf]# firewall-cmd --reload 
[root@localhost conf]# firewall-cmd --list-all
[root@localhost conf]# systemctl restart httpd

[root@localhost ~]# cd /var/www/net/lor

[root@localhost lor]# ls

index.html

[root@localhost ~]# echo"很抱歉...该网站正在维护中，请您在5月11号之后再访问，感谢你的支持"> /var/www/net/lor/sorry.html

[root@localhost lor]# cd /etc/httpd/conf

[root@localhost conf]# ls

httpd.conf  magic

[root@localhost conf]# vim httpd.conf

[root@localhost conf]# setenforce 0
[root@localhost conf]# systemctl restart httpd

[root@localhost ~]# nmtui

进入编辑连接，再进入ens33，将自动改为手动添加ip地址