web服务器集群试题

服务器IP地址规划：client：12.0.0.12/24，网关服务器：ens36:12.0.0.1/24、ens33：192.168.11.1/24；Web1：192.168.11.10/24，Web2：192.168.11.11/24，Nginx：192.168.11.9/24。

1 Nginx服务器——编译安装Nginx

[root@mcb-11-9 ~]#yum -y install pcre-devel zlib-devel gcc gcc-c++ make
#安装依赖环境
[root@mcb-11-9 ~]#useradd -M -s /sbin/nologin nginx
#创建程序管理用户Nginx
[root@mcb-11-9 opt]#cd /opt
[root@mcb-11-9 opt]#wget http://nginx.org/download/nginx-1.18.0.tar.gz
#下载压缩文件
[root@mcb-11-9 opt]#ls
nginx-1.18.0.tar.gz
[root@mcb11-9 opt]#tar xf nginx-1.18.0.tar.gz 
[root@mcb-11-9 opt]#cd nginx-1.18.0/
[root@mcb-11-9 nginx-1.18.0]#./configure \         编译安装
> --prefix=/usr/local/nginx \
> --user=nginx \
> --group=nginx \
> --with-http_stub_status_module
[root@mcb-11-9 nginx-1.18.0]#make -j2
[root@mcb-11-9 nginx-1.18.0]#make install
[root@mcb-11-9 nginx-1.18.0]#ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/
[root@mcb-11-9 nginx-1.18.0]#vim /lib/systemd/system/nginx.service    编译多行重定向
[root@mcb-11-9 nginx-1.18.0]#cat /lib/systemd/system/nginx.service 
[Unit]
Description=nginx
After=network.target
[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/bin/kill -1 $MAINPID
ExecStop=/bin/kill -3 $MAINPID
PrivateTmp=true
[Install]
WantedBy=multi-user.target
[root@-11-9 nginx-1.18.0]#systemctl daemon-reload
[root@mcb-11-9 nginx-1.18.0]#systemctl enable --now nginx.service
Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.
[root@mcb-11-9 nginx-1.18.0]#systemctl status nginx.service 
● nginx.service - nginxLoaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)Active: active (running) since 六 2024-03-09 12:37:29 CST; 4s agoProcess: 39778 ExecStart=/usr/local/nginx/sbin/nginx (code=exited, status=0/SUCCESS)Main PID: 39779 (nginx)CGroup: /system.slice/nginx.service├─39779 nginx: master process /usr/local/nginx/sbin/nginx└─39780 nginx: worker process3月 09 12:37:29 mvb.D systemd[1]: Starting nginx...
3月 09 12:37:29 mcb.D systemd[1]: Started nginx.
[root@mcb-11-9 nginx-1.18.0]#chown -R nginx:nginx /usr/local/nginx/

2 Nginx服务器——搭建PHP

[root@mcb-11-9 ~]#cd /opt
[root@mcb-11-9 ~]#yum -y install gd \    安装环境依赖包
> libjpeg libjpeg-devel \
> libpng libpng-devel \
> freetype freetype-devel \
> libxml2 libxml2-devel \
> zlib zlib-devel \
> curl curl-devel \
> openssl openssl-devel
[root@mcb-11-9 opt]#rz -E
rz waiting to receive.
[root@mcb-11-9 opt]#ls
nginx-1.18.0  nginx-1.18.0.tar.gz  php-7.1.10.tar.bz2
[root@mcb-11-9 opt]#tar xf php-7.1.10.tar.bz2 
[root@mcb-11-9 opt]#cd php-7.1.10/
[root@mcb-11-9 php-7.1.10]#./configure \   编译安装
--prefix=/usr/local/php \
--with-mysql-sock=/usr/local/mysql/mysql.sock \
--with-mysqli \
--with-zlib \
--with-curl \
--with-gd \
--with-jpeg-dir \
--with-png-dir \
--with-freetype-dir \
--with-openssl \
--enable-fpm \
--enable-mbstring \
--enable-xml \
--enable-session \
--enable-ftp \
--enable-pdo \
--enable-tokenizer \
--enable-zip
[root@mcb-11-9 php-7.1.10]#make -j2
[root@mcb-11-9 php-7.1.10]#make install
[root@mcb-11-9 php-7.1.10]#ln -s /usr/local/php/bin/* /usr/local/bin/
[root@mcb-11-9 php-7.1.10]#ln -s /usr/local/php/sbin/* /usr/local/sbin/
#优化路径#调整进程服务配置文件
[root@mcb-11-9 php-7.1.10]#cp /opt/php-7.1.10/php.ini-development /usr/local/php/lib/php.ini
[root@mcb-11-9 php-7.1.10]#vim /usr/local/php/lib/php.ini-1170G-  mysqli.default_socket =  /usr/local/mysql/mysql.sock-939G-   date.timezone = Asia/Shangha[root@mcb-11-9 php-7.1.10]#sed -n '939p;1170p' /usr/local/php/lib/php.ini 
date.timezone = Asia/Shanghai
mysqli.default_socket =  /usr/local/mysql/mysql.sock
[root@mcb-11-9 php-7.1.10]#cd /usr/local/php/etc/
[root@mcb-11-9 etc]#cp  php-fpm.conf.default php-fpm.conf
[root@mcb-11-9 etc]#vim php-fpm.conf
[root@mcb-11-9 etc]#sed -n '17p' php-fpm.conf
pid = run/php-fpm.pid#调整扩展配置文件
[root@mcb-11-9 etc]#cd /usr/local/php/etc/php-fpm.d/
[root@mcb-11-9 php-fpm.d]#cp www.conf.default www.conf
[root@mcb-11-9 php-fpm.d]#ls
www.conf  www.conf.default#启动PHP
[root@mcb-11-9 php-fpm.d]#cp /opt/php-7.1.10/sapi/fpm/php-fpm.service /usr/lib/systemd/system/php-fpm.service
[root@mcb-11-9 php-fpm.d]#systemctl restart php-fpm.service 
[root@mcb-11-9 php-fpm.d]#systemctl status php-fpm.service 
● php-fpm.service - The PHP FastCGI Process ManagerLoaded: loaded (/usr/lib/systemd/system/php-fpm.service; disabled; vendor preset: disabled)Active: active (running) since 六 2024-03-09 13:01:36 CST; 5s agoMain PID: 47397 (php-fpm)CGroup: /system.slice/php-fpm.service├─47397 php-fpm: master process (/usr/local/php/etc/php-fpm.con...├─47400 php-fpm: pool www└─47401 php-fpm: pool www3月 09 13:01:36 G.D systemd[1]: Started The PHP FastCGI Process Manager.
3月 09 13:01:36 G.D systemd[1]: Starting The PHP FastCGI Process Manager...
Hint: Some lines were ellipsized, use -l to show in full.

3 编译安装搭建mysql

[root@G opt]#yum -y install \
> ncurses \
> ncurses-devel \
> bison \
> cmake
#环境依赖包
[root@G opt]#yum -y install gcc gcc-c++ cmake bison bison-devel zlib-devel libcurl-devel libarchive-devel boost-devel   ncurses-devel gnutls-devel libxml2-devel openssl-devel libevent-devel libaio-devel
#安装依赖环境
[root@G opt]#useradd -M -s /sbin/nologin  mysql
#创建运行用户
[root@G opt]#rz -E
rz waiting to receive.
[root@G opt]#ls
mysql-boost-5.7.20.tar.gz  nginx-1.18.0.tar.gz  php-7.1.10.tar.bz2
nginx-1.18.0               php-7.1.10
[root@G opt]#tar xf mysql-boost-5.7.20.tar.gz 
[root@G opt]#cd mysql-5.7.20/
[root@G mysql-5.7.20]#cmake \
> -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
> -DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
> -DSYSCONFDIR=/etc \
> -DSYSTEMD_PID_DIR=/usr/local/mysql \
> -DDEFAULT_CHARSET=utf8  \
> -DDEFAULT_COLLATION=utf8_general_ci \
> -DWITH_EXTRA_CHARSETS=all \
> -DWITH_INNOBASE_STORAGE_ENGINE=1 \
> -DWITH_ARCHIVE_STORAGE_ENGINE=1 \
> -DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
> -DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \
> -DMYSQL_DATADIR=/usr/local/mysql/data \
> -DWITH_BOOST=boost \
> -DWITH_SYSTEMD=1
[root@mcb-11-9 mysql-5.7.20]#make -j2
[root@mcb-11-9 mysql-5.7.20]#make install
[root@mcb-11-9 mysql-5.7.20]#vim /etc/my.cnf
#修改mysql配置文件
[root@mcb-11-9 mysql-5.7.20]#cat /etc/my.cnf
[client]
port = 3306
socket=/usr/local/mysql/mysql.sock[mysqld]
user = mysql
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port = 3306
character-set-server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket=/usr/local/mysql/mysql.sock
bind-address = 0.0.0.0
skip-name-resolve
max_connections=2048
default-storage-engine=INNODB
max_allowed_packet=16M
server-id = 1sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES
[root@mcb-11-9 mysql-5.7.20]#chown -R mysql:mysql /usr/local/mysql/
[root@mcb-11-9 mysql-5.7.20]#chown mysql:mysql /etc/my.cnf
#更改mysql安装目录和配置文件的属主属组[root@mcb-11-9 mysql-5.7.20]#echo 'export PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH' >> /etc/profile
#设置路径环境变量
[root@mcb-11-9 mysql-5.7.20]#echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
[root@mcb-11-9 mysql-5.7.20]#source /etc/profile
[root@mcb-11-9 mysql-5.7.20]#echo $PATH
/usr/local/mysql/bin:/usr/local/mysql/lib:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin[root@G mysql-5.7.20]#cd /usr/local/mysql/bin/
[root@G bin]#./mysqld \
> --initialize-insecure \
> --user=mysql \
> --basedir=/usr/local/mysql \
> --datadir=/usr/local/mysql/data
#初始化数据库[root@G bin]#cp /usr/local/mysql/usr/lib/systemd/system/mysqld.service 
/usr/lib/systemd/system/
#添加mysqld系统服务
[root@G bin]#systemctl daemon-reload
[root@G bin]#systemctl start mysqld.service
[root@G bin]#systemctl enable mysqld
Created symlink from /etc/systemd/system/multi-user.target.wants/mysqld.service to /usr/lib/systemd/system/mysqld.service.
[root@G bin]#systemctl status mysqld.service
● mysqld.service - MySQL ServerLoaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)Active: active (running) since 六 2024-03-09 13:46:17 CST; 8s agoDocs: man:mysqld(8)http://dev.mysql.com/doc/refman/en/using-systemd.htmlMain PID: 66268 (mysqld)CGroup: /system.slice/mysqld.service└─66268 /usr/local/mysql/bin/mysqld --daemonize --pid-file=/usr...3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.637646Z 0 [Warni...e.
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.637658Z 0 [Warni...e.
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.637661Z 0 [Warni...e.
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.637667Z 0 [Warni...e.
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.638510Z 0 [Warni...e.
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.638519Z 0 [Warni...e.
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.642575Z 0 [Note]...ts
3月 09 13:46:17 G.D mysqld[66265]: 2024-03-09T05:46:17.642946Z 0 [Note]...s.
3月 09 13:46:17 G.D mysqld[66265]: Version: '5.7.20'  socket: '/usr/loc...on
3月 09 13:46:17 G.D systemd[1]: Started MySQL Server.
Hint: Some lines were ellipsized, use -l to show in full.
[root@G ~]#mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.7.20 Source distribution
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> ^DBye

4 修改nginx文本，配置PHP测试页

[root@mcb-11-9 ~]#vim /usr/local/nginx/conf/nginx.conf
[root@mcb-11-9 ~]#sed -n '65,71p' /usr/local/nginx/conf/nginx.conflocation ~ \.php$ {root           html;fastcgi_pass   127.0.0.1:9000;fastcgi_index  index.php;fastcgi_param  SCRIPT_FILENAME  /usr/local/nginx/html$fastcgi_script_name;include        fastcgi_params;}
[root@mcb-11-9 ~]#systemctl restart nginx
[root@mcb-11-9 ~]#systemctl status nginx.service
● nginx.service - nginxLoaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)Active: active (running) since 六 2024-03-09 13:53:04 CST; 5s agoProcess: 1844 ExecStop=/bin/kill -3 $MAINPID (code=exited, status=0/SUCCESS)Process: 1849 ExecStart=/usr/local/nginx/sbin/nginx (code=exited, status=0/SUCCESS)Main PID: 1851 (nginx)CGroup: /system.slice/nginx.service├─1851 nginx: master process /usr/local/nginx/sbin/nginx└─1852 nginx: worker process3月 09 13:53:04 G.D systemd[1]: Starting nginx...
3月 09 13:53:04 G.D systemd[1]: Started nginx.
[root@mcb-11-9 ~]#vim /usr/local/nginx/html/index.php
[root@mcb-11-9 ~]#cat /usr/local/nginx/html/index.php 
<?php
$link=mysqli_connect('192.168.241.24','bbsuser','admin123');
if($link) echo "<h1>Success!!</h1>";
else echo "Fail!!";
?>
[root@mcb-11-9 ~]#systemctl restart nginx

5 配置数据库

[root@mcb-11-9 ~]#mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.7.20 Source distributionCopyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> CREATE DATABASE bbs;
Query OK, 1 row affected (0.00 sec)mysql> GRANT all ON bbs.* TO 'bbsuser'@'%' IDENTIFIED BY 'admin123';
Query OK, 0 rows affected, 1 warning (0.00 sec)mysql> GRANT all ON bbs.* TO 'bbsuser'@'localhost' IDENTIFIED BY 'admin123';
Query OK, 0 rows affected, 2 warnings (0.00 sec)mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)mysql> ^DBye

6 安装论坛

[root@mcb-11-9 ~]#cd /opt
[root@mcb-11-9 opt]#unzip Discuz_X3.4_SC_UTF8.zip
[root@mcb-11-9 opt]#ls
dir_SC_UTF8              mysql-boost-5.7.20.tar.gz  php-7.1.10
Discuz_X3.4_SC_UTF8.zip  nginx-1.18.0               php-7.1.10.tar.bz2
mysql-5.7.20             nginx-1.18.0.tar.gz        说明.htm
[root@mcb-11-9 opt]#cd dir_SC_UTF8/
[root@mcb-11-9 dir_SC_UTF8]#cp -r upload/ /usr/local/nginx/html/bbs
[root@mcb-11-9 dir_SC_UTF8]#cd /usr/local/nginx/html/bbs/
[root@mcb-11-9 bbs]#ls
admin.php  connect.php      group.php  member.php  search.php  uc_server
api        crossdomain.xml  home.php   misc.php    source
api.php    data             index.php  plugin.php  static
archiver   favicon.ico      install    portal.php  template
config     forum.php        m          robots.txt  uc_client
[root@mcb-11-9 bbs]#chown -R nginx.nginx ./config/
[root@mcb-11-9 bbs]#chown -R nginx.nginx ./data/
[root@mcb-11-9 bbs]#chown -R nginx.nginx ./uc_client/
[root@mcb-11-9 bbs]#chown -R nginx.nginx ./uc_server/
[root@mcb-11-9 bbs]#chmod -R 777 ./config/
[root@mcb-11-9 bbs]#chmod -R 777 ./data/
[root@mcb-11-9 bbs]#chmod -R 777 ./uc_client/
[root@mcb-11-9 bbs]#chmod -R 777 ./uc_server/
[root@mcb-11-9 bbs]#vim /usr/local/nginx/conf/nginx.conf
[root@mcb-11-9 bbs]#sed -n '43,46p' /usr/local/nginx/conf/nginx.conflocation / {root   html;index  index.html index.htm index.php;}

web-1 2---搭建tomcat

安装Oracle JDK

[root@node2 ~]#cd /opt
[root@node2 opt]#rm -rf *
[root@node2 opt]#ls
[root@node2 opt]#rz -E
rz waiting to receive.
[root@node2 opt]#ls
jdk-8u291-linux-x64.tar.gz
[root@node2 opt]#tar xf jdk-8u291-linux-x64.tar.gz -C /usr/local/
[root@node2 opt]#cd /usr/local/
[root@node2 local]#ls
bin  games    jdk1.8.0_291  lib64    sbin   src
etc  include  lib           libexec  share
[root@node2 local]#ln -s jdk1.8.0_291/ jdk
[root@node2 local]#ls
bin  games    jdk           lib    libexec  share
etc  include  jdk1.8.0_291  lib64  sbin     src
[root@node2 local]#vim /etc/profile.d/jdk.sh
[root@node2 local]#cat /etc/profile.d/jdk.sh 
export JAVA_HOME=/usr/local/jdk
export PATH=$JAVA_HOME/bin:$PATH
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib/:$JRE_HOME/lib/
[root@node2 local]#. /etc/profile.d/jdk.sh 
[root@node2 local]#java -version
java version "1.8.0_291"
Java(TM) SE Runtime Environment (build 1.8.0_291-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.291-b10, mixed mode)

安装tomcat

[root@node2 local]#cd /opt
[root@node2 opt]#ls
jdk-8u291-linux-x64.tar.gz
[root@node2 opt]#rz -E
rz waiting to receive.
[root@node2 opt]#ls
apache-tomcat-9.0.16.tar.gz  jdk-8u291-linux-x64.tar.gz
[root@node2 opt]#tar xf apache-tomcat-9.0.16.tar.gz -C /usr/local/
[root@node2 opt]#cd /usr/local/
[root@node2 local]#ls
apache-tomcat-9.0.16  etc    include  jdk1.8.0_291  lib64    sbin   src
bin                   games  jdk      lib           libexec  share
[root@node2 local]#mv apache-tomcat-9.0.16/ tomcat
[root@node2 local]#ls
bin  games    jdk           lib    libexec  share  tomcat
etc  include  jdk1.8.0_291  lib64  sbin     src
[root@node2 local]#cd tomcat/
[root@node2 tomcat]#ls
bin           CONTRIBUTING.md  logs       RELEASE-NOTES  webapps
BUILDING.txt  lib              NOTICE     RUNNING.txt    work
conf          LICENSE          README.md  temp
[root@node2 tomcat]#useradd -M -s /sbin/nologin tomcat
[root@node2 tomcat]#cat > /usr/lib/systemd/system/tomcat.service <<EOF
> [Unit]
> Description=Tomcat
> After=syslog.target network.target
> 
> [Service]
> Type=forking
> ExecStart=/usr/local/tomcat/bin/startup.sh
> ExecStop=/usr/local/tomcat/bin/shutdown.sh
> RestartSec=3
> PrivateTmp=true
> User=tomcat
> Group=tomcat
> 
> [Install]
> WantedBy=multi-user.target
> 
> EOF
[root@node2 tomcat]#cat /usr/lib/systemd/system/tomcat.service 
[Unit]
Description=Tomcat
After=syslog.target network.target[Service]
Type=forking
ExecStart=/usr/local/tomcat/bin/startup.sh
ExecStop=/usr/local/tomcat/bin/shutdown.sh
RestartSec=3
PrivateTmp=true
User=tomcat
Group=tomcat[Install]
WantedBy=multi-user.target
[root@node2 tomcat]#chown -R tomcat:tomcat ../tomcat
[root@node2 tomcat]#systemctl daemon-reload
[root@node2 tomcat]#systemctl start tomcat
[root@node2 tomcat]#systemctl status tomcat
● tomcat.service - TomcatLoaded: loaded (/usr/lib/systemd/system/tomcat.service; disabled; vendor preset: disabled)Active: active (running) since Sat 2024-03-09 00:16:33 EST; 4s agoProcess: 4938 ExecStart=/usr/local/tomcat/bin/startup.sh (code=exited, status=0/SUCCESS)Main PID: 4954 (catalina.sh)CGroup: /system.slice/tomcat.service├─4954 /bin/sh /usr/local/tomcat/bin/catalina.sh start└─4955 /usr/bin/java -Djava.util.logging.config.file=/usr/local...Mar 09 00:16:33 node2.localdomain systemd[1]: Starting Tomcat...
Mar 09 00:16:33 node2.localdomain systemd[1]: Started Tomcat.

1）在Nginx服务器上搭建LNMP服务，并且能够对外提供Discuz论坛服务。（10分）

在Web1、Web2服务器上搭建Tomcat 服务。（10分）

2）为nginx服务配置虚拟主机，新增两个域名 www.kgc.com 和 www.benet.com，使用http://www.kgc.com/index.php可访问上一题的Discuz论坛页面。（10分）

使用http://www.benet.com则访问/var/www/html目录中的index.html文件的内容，内容自定义。（10分）

3）对基于www.benet.com域名的虚拟机主机的nginx服务调优：隐藏nginx版本号，缓存静态图片网页时间为1天，设置防盗链功能。（10分）

4）网关服务器搭建NFS服务，提供的文件系统使用LVM类型，共享目录名称为/opt/nfs；要求根据日期对Discuz论坛服务的访问日志进行日志分割，要求每天生成一份日志文件，保存到NFS服务共享的目录内（10分）

5）要求配置location匹配请求地址http://www.kgc.com/test/XXXX，使用户访问该路径下的文件时返回/var/share/nginx/html/目录下的文件内容。（10分）

要求使用rewrite将使用域名www.benet.com 请求以 .php 结尾的访问都跳转到域名www.kgc.com上，而且后面的参数保持不变，比如访问http://www.benet.com/bbs/index.php跳转到http://www.kgc.com/bbs/index.php。（10分）

6）在Nginx服务器上对基于www.benet.com域名的虚拟机主机设置动静分离由nginx提供静态页面服务，将对 .jsp文件的动态页面请求转发到Tomcat 服务器处理，并实现负载均衡（10分）

7）在网关服务器上设置SNAT/DNAT，使client使用网关服务器的ens36接口的IP地址访问也可实现上一题的效果。（10分）