CentOS 6下Apache的https虚拟主机实践

题目:
1、建立httpd服务器,要求:
提供两个基于名称的虚拟主机:
(a)www1.buybybuy.com,页面文件目录为/web/vhosts/www1;错误日志为/var/log/httpd/www1.err,访问日志为/var/log/httpd/www1.access;
(b)www2.buybybuy.com,页面文件目录为/web/vhosts/www2;错误日志为/var/log/httpd/www2.err,访问日志为/var/log/httpd/www2.access;
(c)为两个虚拟主机建立各自的主页文件index.html,内容分别为其对应的主机名;
(d)通过www1.buybybuy.com/server-status输出httpd工作状态相关信息,且只允许提供帐号密码才能访问(status:status);

2、为上面的第2个虚拟主机提供https服务,使得用户可以通过https安全的访问此web站点;
(1)要求使用证书认证,证书中要求使用的国家(CN)、州(Beijing)、城市(Beijing)和组织(Quintin Ltd);
(2)设置部门为Ops,主机名为www2.buybybuy.com,邮件为admin@buybybuy.com;

===============================================================================

准备环境与材料:
CentOS 6 两部(一部也可以)
Apache 2.2
使用域名buybybuy.com

1.建立httpd服务器

创建所需文件夹:
# mkdir -p /web/vhosts/www{1,2}

(a)、(b)

因为服务器自带httpd,无需安装
所以直接编辑httpd配置文件:httpd.conf
# vim /etc/httpd/conf/httpd.conf

注释掉:
DocumentRoot

取消注释:
#NameVirtualHost *:80

修改:
ServerName localhost:80

在底部添加以下虚拟主机配置
<VirtualHost *:80>
ServerAdmin admin@buybybuy.com
DocumentRoot /web/vhosts/www1
ServerName www1.buybybuy.com
ErrorLog logs/www1.err
CustomLog logs/www1.access combined
</VirtualHost>

<Directory /web/vhosts/www1>
Options Indexes FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</Directory>

<VirtualHost *:80>
ServerAdmin admin@buybybuy.com
DocumentRoot /web/vhosts/www2
ServerName www2.buybybuy.com
ErrorLog logs/www2.err
CustomLog logs/www2.access combined
</VirtualHost>

<Directory /web/vhosts/www2>
Options Indexes FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</Directory>

配置好后发现
Apache 403 error, (13)Permission denied: access to / denied问题
检查了一圈httpd.conf和目录权限,均没有发现问题。
发现是因为系统启动了SELINUX导致的。

临时关闭SELINUX
setenforce 0

永久关闭
vim /etc/selinux/config
修改
SELINUX=enforcing
改成
SELINUX=disabled

(c)

在www1和www2中分别新建index.html,内容分别为www1.buybybuy.com和www2.buybybuy.com
# vim /web/vhosts/www1/index.html
# vim /web/vhosts/www2/index.html

(d)

创建一个访问账户,按提示操作
# htpasswd -c /etc/httpd/conf.d/.htpasswd webadmin

修改httpd.conf,加入
<Location /server-status>
AuthType Basic
AuthName "Administrator privateeee"
AuthUserFile "/etc/httpd/conf.d/.htpasswd"
Require user "webadmin"
SetHandler server-status
Order deny,allow
Deny from all
Allow from 192.168.3.3
</Location>

2.将www2.buybybuy.com设置为https

需要使用OpenSSL生成自签名证书,确保OpenSSL已安装.
# httpd -M | grep ssl
如果没有则安装
# yum install mod_ssl openssl

在CentOS A服务器上配置CA服务,再给当前服务器(CentOS B)的https颁发证书.

CentOS A:

初始化CA服务,创建所需要的文件(/etc/pki/CA/)
# touch index.txt 创建索引文件
# echo 01 > serial 创建序列号文件

CA自签证书
生成私钥
# (umask 077; openssl genrsa -out /etc/pki/CA/private/cakey.pem 2048)
使用私钥生成签名证书
# openssl req -new -x509 -key /etc/pki/CA/private/cakey.pem -days 7300 -out /etc/pki/CA/cacert.pem

CentOS B:

# mkdir /etc/httpd/ssl
# cd /etc/httpd/ssl
生成秘钥
# (umask 007;openssl genrsa -out httpd.key 1024)
生成请求文件
# openssl req -new -key httpd.key -out httpd.csr

Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:Beijing
Locality Name (eg, city) [Default City]:Beijing
Organization Name (eg, company) [Default Company Ltd]:Quintin Ltd
Organizational Unit Name (eg, section) []:Ops
Common Name (eg, your name or your server's hostname) []:www2.buybybuy.com
Email Address []:admin@buybybuy.com

把生成的文件发送到CA服务器 CentOS A:
# scp httpd.csr root@192.168.3.67:/tmp/

回到CentOS A:

签署
# openssl ca -in /tmp/httpd.csr -out /etc/pki/CA/certs/www2.buybybuy.com.crt -days 365
将生成的crt传回CentOS B
# scp /etc/pki/CA/certs/www2.buybybuy.com.crt root@192.168.3.60:/etc/httpd/ssl/

回到CentOS B:

配置httpd的ssl配置(ssl.conf):

# cd /etc/httpd/conf.d/
备份
# cp ssl.conf{,.bak}

编辑ssl.conf

修改
<VirtualHost _default_:443>

<VirtualHost *:443>

DocumentRoot "/web/vhosts/www2"
ServerName www2.buybybuy.com

证书位置
SSLCertificateFile /etc/pki/tls/certs/localhost.crt
=>
SSLCertificateFile /etc/httpd/ssl/www2.buybybuy.com.crt

私钥位置
SSLCertificateKeyFile /etc/pki/tls/private/localhost.key
=>
SSLCertificateKeyFile /etc/httpd/ssl/httpd.key

配置完毕检查配置文件语法错误:
# httpd -t

重启httpd:
# service httpd restart

查看443端口是否已开启:
ss -tnl

使用s_client在CentOS A上做测试:
# openssl s_client -connect 192.168.3.60:443 -CAfile /etc/pki/CA/cacert.pem

GET / HTTP/1.1
Host: www2.buybybuy.com

HTTP/1.1 200 OK
Date: Wed, 05 Oct 2016 11:20:16 GMT
Server: Apache/2.2.15 (CentOS)
Last-Modified: Fri, 30 Sep 2016 13:33:02 GMT
ETag: "bf4e8-21-53db9a230598a"
Accept-Ranges: bytes
Content-Length: 33
Connection: close
Content-Type: text/html; charset=UTF-8

www2.buybybuy.com</br>
welcome!

测试成功!

去浏览器访问格式:
https://www2.buybybuy.com

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