docker容器化业务
1、环境准备：
| 设备 | IP地址 | 作用 | 系统版本 |
|---|---|---|---|
| mysql-master | 192.168.100.213 | Nginx-Web服务器 | Ubuntu2004 |
| mysql-slave | 192.168.100.214 | Nginx-Web服务器 | Ubuntu2004 |
| harbor1 | 192.168.100.215 | 反向代理web+负载均衡 | Ubuntu2004 |
| harbor2 | 192.168.100.216 | DNS服务器 | Ubuntu2004 |
| nginx-harbor | 192.168.100.217 | 测试 | Ubuntu2004 |
| docker1 | 192.168.100.211 | jpress容器、wordpress容器、kodbox容器 | Ubuntu2004 |
| docker2 | 192.168.100.212 | jpress、wordpress、kodbox | Ubuntu2004 |
| Nginx1 | 192.168.100.113 | 反向代理+负载均衡jpress、wordpress、kodbox | Rocky8.6 |
| Nginx2 | 192.168.100.114 | 反向代理+负载均衡jpress、wordpress、kodbox | Rocky8.6 |
| keepalived-master | 192.168.100.111、192.168.100.88（vip） | VIP | Rocky8.6 |
| keepalived-slave | 192.168.100.112、192.168.100.88（vip） | VIP | Rocky8.6 |
| firewalld | 192.168.100.219、172.20.0.246 | 防火墙 | Ubuntu2004 |
| 客户端路由器 | 172.20.0.245、10.0.0.101 | 客户端路由器 | Ubuntu2004 |
| DNS | 10.0.0.28 | 客户端DNS | Rocky8.6 |
| client | 10.0.0.199 | 测试 | Rocky9 |
2、构建基础镜像
#构建ubuntu系统基础镜像
[root@DY-ubuntu-01 ubuntu_base]#vim Dockerfile
FROM ubuntu:20.04
LABEL maintainer="www.wang.org" version="ubuntu_base:v1.0"
RUN sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list && \
apt update && \
apt -y install tree wget vim curl iproute2 tzdata zip unzip && \
rm -rf /etc/localtime && \
ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
rm -rf /var/lib/apt/lists/*
[root@DY-ubuntu-01 ubuntu_base]#docker build -t ubuntu_base:v1.0 . #构建php基础镜像
[root@DY-ubuntu-01 php]#vim Dockerfile
FROM ubuntu_base:v1.0
LABEL maintarner="www.wang.org" version="ubuntu_php:v1.1"
ADD php-7.4.30.tar.gz /usr/local/src/
RUN apt update && \
apt -y install gcc make libssl-dev libxml2-dev libsqlite3-dev libcurl3-dev libxml2 sqlite3 pkg-config zlib1g-dev libonig-dev libkrb5-dev libssl-dev libbz2-dev libcurl4-openssl-dev libpng-dev libjpeg-dev libfreetype-dev g++ libonig-dev libxslt-dev libzip-dev && \
cd /usr/local/src/php-7.4.30 && \
./configure --prefix=/apps/php74 --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-openssl --with-zlib --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --enable-mbstring --enable-xml --enable-sockets --enable-fpm --enable-maintainer-zts --disable-fileinfo && \
make && make install && \
useradd -r -u 888 nginx && \
rm -rf /usr/local/src/php-7.4.30
COPY php.ini /usr/local/src/php-7.4.30/
COPY www.conf /apps/php74/etc/php-fpm.d/
COPY php-fpm.conf /apps/php74/etc/
[root@DY-ubuntu-01 php]#docker build -t ubuntu_php:v1.1 . #构建nginx基础镜像：
[root@DY-ubuntu-01 nginx]#vim Dockerfile
FROM ubuntu_php:v1.1
LABEL maintainer="www.wang.org" version="ubuntu_nginx:v1.0"
ADD nginx-1.22.0.tar.gz /usr/local/src/
RUN apt update && \
apt install -y nfs-kernel-server nfs-common openssh-server openssl libpcre3 libpcre3-dev
RUN cd /usr/local/src/nginx-1.22.0 && \
./configure --prefix=/apps/nginx && \
make && make install && \
ln -s /apps/nginx/sbin/nginx /usr/bin && \
mkdir /apps/nginx/conf/conf.d && \
rm -rf /usr/local/src/nginx-1.22.0/*
ADD nginx.conf /apps/nginx/conf/nginx.conf
RUN chown -R nginx.nginx /apps/nginx/
COPY run_nginx.sh /usr/local/sbin/
EXPOSE 80 443
CMD ["run_nginx.sh"]
[root@DY-ubuntu-01 nginx]#vim run_nginx.sh
#!/bin/bash
/apps/php74/sbin/php-fpm
/apps/nginx/sbin/nginx -g "daemon off;"
[root@DY-ubuntu-01 nginx]#docker build -t ubuntu_nginx:v1.0 .3、搭建harbor
#192.168.100.215、192.168.100.216都执行:
#准备harbor安装脚本，脚本参照：https://blog.51cto.com/dayu/5787187
[root@DY-ubuntu-06 ~]#bash install_harbor.sh
[root@DY-ubuntu-05 ~]#vim /etc/docker/daemon.json
{
"registry-mirrors": ["https://pgavrk5n.mirror.aliyuncs.com"],
"insecure-registries": ["192.168.100.215","192.168.100.216","harbor.wang.org"]
}
[root@DY-ubuntu-05 ~]#systemctl restart docker
[root@DY-ubuntu-05 ~]#vim /etc/hosts
192.168.100.217 harbor.wang.org
[root@DY-ubuntu-05 ~]#vim /apps/harbor/harbor.yml
hostname: 192.168.100.215 #改为本机IP
[root@DY-ubuntu-05 ~]#cd /apps/harbor/
[root@DY-ubuntu-05 harbor]#./prepare
[root@DY-ubuntu-05 harbor]#docker-compose down
[root@DY-ubuntu-05 harbor]#docker-compose up -d
#浏览器分别登陆215和216设置harbor复制规则，具体请参照https://blog.51cto.com/dayu/57861464、nginx反向代理harbor
#192.168.100.217：
[root@DY-ubuntu-07 conf]#cd certs/
[root@DY-ubuntu-07 certs]#openssl req -newkey rsa:4096 -nodes -sha256 -keyout ca.key -x509 -days 2650 -out ca.crt
[root@DY-ubuntu-07 certs]#openssl req -newkey rsa:4096 -nodes -sha256 -keyout harbor.wang.org.key -out harbor.wang.org.csr
[root@DY-ubuntu-07 certs]#openssl x509 -req -days 3650 -in harbor.wang.org.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out harbor.wang.org.crt
[root@DY-ubuntu-07 certs]#cat harbor.wang.org.crt ca.crt > harbor.wang.org.pem
[root@DY-ubuntu-07 certs]#cd
[root@DY-ubuntu-07 ~]#vim /apps/nginx/conf/conf.d/harbor.wang.org.conf
upstream harbor {
hash $remote_addr;
server 192.168.100.215;
server 192.168.100.216;
}
server {
listen 80;
server_name harbor.wang.org;
return 302 https://$server_name$request_uri;
}
server {
listen 443 ssl http2;
ssl_certificate /apps/nginx/conf/certs/harbor.wang.org.pem;
ssl_certificate_key /apps/nginx/conf/certs/harbor.wang.org.key;
ssl_session_cache shared:sslcache:20m;
ssl_session_timeout 10m;
server_name harbor.wang.org;
client_max_body_size 10g;
location / {
proxy_pass http://harbor;
}
}
5、构建jpress业务镜像
[root@DY-ubuntu-01 jpress]#vim Dockerfile
FROM ubuntu_base:v1.0
LABEL maintainer="www.wang.org" version="ubuntu_jpress:v1.0"
ADD jdk-8u341-linux-x64.tar.gz /usr/local/
RUN cd /usr/local && \
ln -s jdk1.8.0_341/ jdk && \
echo "export JAVA_HOME=/usr/local/jdk\nexport PATH=$PATH:/usr/local/jdk/bin" > /etc/profile.d/jdk.sh
ENV JAVA_HOME /usr/local/jdk
ENV PATH $PATH:${JAVA_HOME}/bin
ADD apache-tomcat-9.0.65.tar.gz /usr/local/
RUN cd /usr/local && \
ln -s apache-tomcat-9.0.65 tomcat
COPY jpress-v5.0.2.war /data/jpress/
COPY server.xml /usr/local/tomcat/conf/server.xml
COPY run_tomcat.sh /usr/local/tomcat/bin/run_tomcat.sh
RUN cd /data/jpress && \
mv jpress-v5.0.2.war ROOT.war && \
groupadd -g 808 -r tomcat && \
useradd -u 808 -g tomcat -M -r tomcat && \
chown -R tomcat.tomcat /data/jpress/ /usr/local/tomcat/
CMD ["/usr/local/tomcat/bin/run_tomcat.sh"]
[root@DY-ubuntu-01 jpress]#ls
Dockerfile jdk-8u341-linux-x64.tar.gz run_tomcat.sh
apache-tomcat-9.0.65.tar.gz jpress-v5.0.2.war server.xml
[root@DY-ubuntu-01 jpress]#vim server.xml
......
<Server port="-1" shutdown="SHUTDOWN">
......
<Host name="localhost" appBase="/data/jpress" unpackWARs="true" autoDeploy="false">
.....
[root@DY-ubuntu-01 jpress]#vim run_tomcat.sh
echo "nameserver 180.76.76.76" > /etc/resolv.conf
su - tomcat -c "usr/local/tomcat/bin/catalina.sh start"
tail -f /etc/hosts
[root@DY-ubuntu-01 jpress]#docker build -t ubuntu_tomcat:v1.0 .
[root@DY-ubuntu-01 jpress]#docker run -d -p 8080:80 ubuntu_wordpress:v1.06、搭建主从数据库
#主数据库（192.168.100.213）：
[root@DY-ubuntu-03 ~]#systemctl restart mysql
[root@DY-ubuntu-03 ~]#vim /etc/my.cnf
[mysqld]
server-id=213
log-bin
datadir=/data/mysql
socket=/data/mysql/mysql.sock
log-error=/data/mysql/mysql.log
pid-file=/data/mysql/mysql.pid
default_authentication_plugin=mysql_native_password
[root@DY-ubuntu-03 ~]#mysql -uroot -p123456
mysql> show master logs;
+-------------------------+-----------+-----------+
| Log_name | File_size | Encrypted |
+-------------------------+-----------+-----------+
| DY-ubuntu-03-bin.000001 | 180 | No |
| DY-ubuntu-03-bin.000002 | 515 | No |
| DY-ubuntu-03-bin.000003 | 157 | No |
mysql> create user repluser@'192.168.100.%' identified by '123456';
mysql> grant replication slave on *.* to repluser@'192.168.100.%';
#从数据库（192.168.100.214）：
[root@DY-ubuntu-04 ~]#vim /etc/my.cnf
[root@DY-ubuntu-04 ~]#systemctl restart mysql
[root@DY-ubuntu-04 ~]#mysql -uroot -p123456
CHANGE MASTER TO
MASTER_HOST='192.168.100.213',
MASTER_USER='repluser',
MASTER_PASSWORD='123456',
MASTER_PORT=3306,
MASTER_LOG_FILE='DY-ubuntu-03-bin.000003',
MASTER_LOG_POS=157,
MASTER_CONNECT_RETRY=10;
mysql> start slave;
mysql> show slave status\G
7、Jpress连接数据库
#数据库（192.168.100.213）：
mysql> create database jpress;
mysql> create user jpress@'192.168.100.%' identified by '123456';
mysql> grant all on jpress.* to jpress@'192.168.100.%';
mysql> show grants for jpress@'192.168.100.%';
+----------------------------------------------------------------+
| Grants for jpress@192.168.100.% |
+----------------------------------------------------------------+
| GRANT USAGE ON *.* TO `jpress`@`192.168.100.%` |
| GRANT ALL PRIVILEGES ON `jpress`.* TO `jpress`@`192.168.100.%` |
+----------------------------------------------------------------+
2 rows in set (0.00 sec)#浏览器输入192.168.100.211:8080 连接数据库即可8、构建wordpress镜像
[root@DY-ubuntu-01 wordpress]#vim Dockerfile
FROM ubuntu_nginx:v1.0
LABEL maintarner="www.wang.org" version="ubuntu_wordpress.1.0"
ADD wordpress-6.0.2-zh_CN.tar.gz /data/
COPY wordpress.wang.org.conf /apps/nginx/conf/conf.d/wordpress.wang.org.conf
RUN chown -R nginx.nginx /data/wordpress
[root@DY-ubuntu-01 wordpress]#docker build -t ubuntu_wordpress:v1.0 .
[root@DY-ubuntu-01 wordpress]#docker run -d -p 9090:80 ubuntu_wordpress:v1.0#数据库（192.168.100.213）：
mysql> create database wordpress;
mysql> create user wordpress@'192.168.100.%' identified by '123456';
mysql> grant all on wordpress.* to wordpress@'192.168.100.%';
mysql> show grants for wordpress@'192.168.100.%';
#客户端解析，浏览器输入wordpress.wang.org 连接数据库即可9、构建kodbox镜像
[root@DY-ubuntu-01 kodbox]#vim Dockerfile
FROM ubuntu_nginx:v1.0
LABEL maintarner="www.wang.org" version="ubuntu_kodbox.1.0"
ADD kodbox-1.35.031.tar.gz /data/
COPY kodbox.wang.org.conf /apps/nginx/conf/conf.d/kodbox.wang.org.conf
RUN apt update && \
apt -y install libapache2-mod-php7.4 php7.4-mysql php7.4-json php7.4-xml php7.4-mbstring php7.4-zip php7.4-gd php7.4-curl
RUN cd /data && \
mv kodbox-1.35.031 kodbox && \
chown -R nginx.nginx /data/kodbox
[root@DY-ubuntu-01 kodbox]#vim kodbox.wang.org.conf
server {
listen 80;
server_name kodbox.wang.org;
root /data/kodbox;
index index.php index.html index.htm;
location ~ \.php$|ping {
root /data/kodbox;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
[root@DY-ubuntu-01 kodbox]#docker build -t ubuntu_kodbox:v1.0 .
[root@DY-ubuntu-01 kodbox]#docker run -d -p 6060:80 ubuntu_kodbox:v1.0#数据库（192.168.100.213）：
mysql> create database kodbox;
mysql> create user kodbox@'192.168.100.%' identified by '123456';
mysql> grant all on kodbox.* to kodbox@'192.168.100.%';
#客户端解析，浏览器输入kodbox.wang.org 连接数据库即可10、搭建nginx反向代理
#nginx反向代理服务器（192.168.100.113、192.168.100.114）：
[root@node3 conf.d]# vim jpress.wang.org.conf
upstream jpress {
hash $remote_addr;
server 192.168.100.211:8080;
server 192.168.100.212:8080;
}
server {
listen 80;
server_name jpress.wang.org;
location / {
proxy_pass http://jpress;
}
}
[root@node3 conf.d]# vim kodbox.wang.org.conf
upstream kodbox {
hash $remote_addr;
server 192.168.100.211:6060;
server 192.168.100.212:6060;
}
server {
listen 80;
server_name kodbox.wang.org;
location / {
proxy_pass http://kodbox;
proxy_set_header host $http_host;
}
}
[root@node3 conf.d]# vim wordpress.wang.org.conf
upstream wordpress {
hash $remote_addr;
server 192.168.100.211:9090;
server 192.168.100.212:9090;
}
server {
listen 80;
server_name wordpress.wang.org;
location / {
proxy_pass http://wordpress;
proxy_set_header host $http_host;
}
}
[root@node3 conf.d]# nginx -s reload11、搭建keepalived
#keepalived_master（192.168.100.111）：
[root@node111 ~]# hostnamectl set-hostname node111.wang.org
[root@node111 ~]# vim /etc/hosts
192.168.100.111 node111.wang.org
192.168.100.112 node112.wang.org
[root@node111 ~]# ssh-keygen
[root@node111 ~]# ssh-copy-id node111.wang.org
[root@node111 ~]# ssh-copy-id node112.wang.org
[root@node111 ~]# yum install -y keepalived ipvsadm
[root@node111 ~]# vim /etc/keepalived/keepalived.conf
global_defs {
notification_email {
root@wang.org
}
notification_email_from root@wang.org
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id node111
vrrp_skip_check_adv_addr
# vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
# vrrp_mcast_group4 224.0.0.18
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.100.88 dev eth0 label eth0:1
}
unicast_src_ip 192.168.100.111
unicast_peer {
192.168.100.112
}
}
virtual_server 192.168.100.88 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP
sorry_server 127.0.0.1 80
real_server 192.168.100.113 80 {
weight 1
HTTP_GET {
url {
path /
# digest 640205b7b0fc66c1ea91c463fac6334d
status_code 200
}
connect_timeout 2
retry 3
delay_before_retry 1
}
}
real_server 192.168.100.114 80 {
weight 1
# HTTP_GET {
# url {
# path /
# digest 640205b7b0fc66c1ea91c463fac6334d
# status_code 200
# }
TCP_CHECK {
connect_timeout 2
retry 3
delay_before_retry 1
connect_port 80
}
}
}
[root@node111 ~]# scp /etc/keepalived/keepalived.conf 192.168.100.112:/etc/keepalived/keepalived.conf
[root@node111 ~]# systemctl restart keepalived.service
[root@node111 ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.100.88:80 rr persistent 50
-> 192.168.100.113:80 Route 1 0 0
-> 192.168.100.114:80 Route 1 0 0 #keepalived_slave（192.168.100.112）：
[root@node112 ~]# hostnamectl set-hostname node112.wang.org
[root@node112 ~]# vim /etc/hosts
192.168.100.111 node111.wang.org
192.168.100.112 node112.wang.org
[root@node112 ~]# ssh-keygen
[root@node112 ~]# ssh-copy-id node111.wang.org
[root@node112 ~]# ssh-copy-id node112.wang.org
[root@node112 ~]# yum install -y keepalived ipvsadm
[root@node112 ~]# vim /etc/keepalived/keepalived.conf
global_defs {
notification_email {
root@wang.org
}
notification_email_from root@wang.org
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id node112
vrrp_skip_check_adv_addr
# vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
# vrrp_mcast_group4 224.0.0.18
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 51
priority 60
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.100.88 dev eth0 label eth0:1
}
unicast_src_ip 192.168.100.112
unicast_peer {
192.168.100.111
}
}
virtual_server 192.168.100.88 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP
sorry_server 127.0.0.1 80
real_server 192.168.100.113 80 {
weight 1
HTTP_GET {
url {
path /
# digest 640205b7b0fc66c1ea91c463fac6334d
status_code 200
}
connect_timeout 2
retry 3
delay_before_retry 1
}
}
real_server 192.168.100.114 80 {
weight 1
# HTTP_GET {
# url {
# path /
# digest 640205b7b0fc66c1ea91c463fac6334d
# status_code 200
# }
TCP_CHECK {
connect_timeout 2
retry 3
delay_before_retry 1
connect_port 80
}
}
}
[root@node112 ~]# systemctl restart keepalived.service
[root@node112 ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.100.88:80 rr persistent 50
-> 192.168.100.113:80 Route 1 0 0
-> 192.168.100.114:80 Route 1 0 0 #所有后端服务器：（192.168.100.113、192.168.100.114）:
[root@node3 ~]# echo 1 > /proc/sys/net/ipv4/conf/enp1s0/arp_ignore
[root@node3 ~]# echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore
[root@node3 ~]# echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
[root@node3 ~]# echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
[root@node3 ~]# echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
[root@node3 ~]# ifconfig lo:0 192.168.100.88 netmask 255.255.255.255 broadcast 192.168.100.88 up
[root@node3 ~]# route add -host 192.168.100.88 dev lo:012、部署防火墙
#firewalld（192.168.100.219）：
[root@DY-ubuntu-09 ~]#iptables -t nat -A PREROUTING -d 172.20.0.246 -p tcp --dport 80 -j DNAT --to-destination 192.168.100.88:80
[root@DY-ubuntu-09 ~]#echo 1 > /proc/sys/net/ipv4/ip_forward
[root@DY-ubuntu-09 ~]#iptables -S -t nat
-P PREROUTING ACCEPT
-P INPUT ACCEPT
-P OUTPUT ACCEPT
-P POSTROUTING ACCEPT
-A PREROUTING -d 172.20.0.246/32 -p tcp -m tcp --dport 80 -j DNAT --to-destination 192.168.100.88:80
#keepalived和nginx反向代理服务器需要把默认路由指向防火墙（192.168.100.111-114）
[root@node3 ~]# route del default
[root@node3 ~]# route add default gw 192.168.100.219 dev eth0
[root@node3 ~]# route -n13、部署客户端路由
#10.0.0.101：
[root@ubuntu2004 ~]#echo 1 > /proc/sys/net/ipv4/ip_forward
[root@ubuntu2004 ~]#iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -j MASQUERADE
[root@ubuntu2004 ~]#iptables -S -t nat
-P PREROUTING ACCEPT
-P INPUT ACCEPT
-P OUTPUT ACCEPT
-P POSTROUTING ACCEPT
-A POSTROUTING -s 10.0.0.0/24 -j MASQUERADE14、部署DNS
# DNS（10.0.0.28）:
[root@dns ~]# vim /etc/named.conf
// listen-on port 53 { 127.0.0.1; };
// listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
secroots-file "/var/named/data/named.secroots";
recursing-file "/var/named/data/named.recursing";
// allow-query { localhost; };
[root@dns ~]# vim /etc/named.rfc1912.zones
zone "wang.org" IN {
type master;
file "wang.org.zone";
};
[root@dns ~]# cd /var/named/
[root@dns named]# cp -p named.localhost wang.org.zone
[root@dns named]# vim wang.org.zone
$TTL 1D
@ IN SOA admin admin.wang.org. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS admin
admin A 10.0.0.28
jpress A 172.20.0.246
wordpress A 172.20.0.246
kodbox A 172.20.0.246
[root@dns named]# named-checkconf #检查配置文件语法是否有问题，如果需要检查zone文件的语法是否有问题，需要安装上bind-utils
[root@dns named]# systemctl restart named
[root@rocky8 named]#route del default
[root@rocky8 named]#route add default gw 10.0.0.101 dev eth015、客户端测试
#10.0.0.199：
[root@rocky9 ~]#route del default
[root@rocky9 ~]#route add default gw 10.0.0.101 dev eth0
[root@rocky9 ~]#curl wordpress.wang.org -kL
[root@rocky9 ~]#curl kodbox.wang.org -kL
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