让CentOS服务器支持https（安全http协议）

我们通常用“http://”这样的方式来访问网站，而此时传输的内容是可能被别人截获的，因为其内容是通过明文传输，所以在传递一些隐私、以及密码相关的信息时，就显得非常的不安全。在一些比较正式的网站、以及一些银行相关的网站中，一些需要提交隐私或者重要级别比较高的密码时，都采用“https://”的方式，来将传输内容加密，从而保证用户安全和避免隐私的泄漏。

今天在这里，我就通过mod_ssl来使我们的服务器也支持https。（环境：centos 5.5）

1、安装mod_ssl

通过yum来在线安装mod_ssl

[root@300second ~]# yum -y install mod_ssl ← 在线安装mod_ssl

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: data.nicehosting.co.kr

* extras: data.nicehosting.co.kr

* updates: data.nicehosting.co.kr

addons | 951 B 00:00

addons/primary | 202 B 00:00
http://data.nicehosting.co.kr/os/CentOS/5.7/os/i386/repodata/repomd.xml: [Errno 14] HTTP Error 403: Forbidden

Trying other mirror.

base | 1.1 kB 00:00

base/primary | 961 kB 00:40

base 2705/2705
http://data.nicehosting.co.kr/os/CentOS/5.7/extras/i386/repodata/repomd.xml: [Errno 14] HTTP Error 403: Forbidden

Trying other mirror.

extras | 2.1 kB 00:00

extras/primary_db | 156 kB 00:06
http://data.nicehosting.co.kr/os/CentOS/5.7/updates/i386/repodata/repomd.xml: [Errno 14] HTTP Error 403: Forbidden

Trying other mirror.

updates | 1.9 kB 00:00

updates/primary_db | 290 kB 00:12

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package mod_ssl.i386 1:2.2.3-53.el5.centos.3 set to be updated

--> Processing Dependency: httpd = 2.2.3-53.el5.centos.3 for package: mod_ssl

--> Processing Dependency: libdistcache.so.1 for package: mod_ssl

--> Processing Dependency: libnal.so.1 for package: mod_ssl

--> Running transaction check

---> Package distcache.i386 0:1.4.5-14.1 set to be updated

---> Package httpd.i386 0:2.2.3-53.el5.centos.3 set to be updated

--> Finished Dependency Resolution

Dependencies Resolved

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

Package Arch Version Repository Size

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

Installing:

mod_ssl i386 1:2.2.3-53.el5.centos.3 updates 93 k

Installing for dependencies:

distcache i386 1.4.5-14.1 base 119 k

Updating for dependencies:

httpd i386 2.2.3-53.el5.centos.3 updates 1.2 M

Transaction Summary

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

Install 2 Package(s)

Upgrade 1 Package(s)

Total download size: 1.4 M

Downloading Packages:

(1/3): mod_ssl-2.2.3-53.el5.centos.3.i386.rpm | 93 kB 00:03

(2/3): distcache-1.4.5-14.1.i386.rpm | 119 kB 00:05

(3/3): httpd-2.2.3-53.el5.centos.3.i386.rpm | 1.2 MB 00:53

--------------------------------------------------------------------------------

Total 23 kB/s | 1.4 MB 01:02

warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID e8562897

updates/gpgkey | 1.5 kB 00:00

Importing GPG key 0xE8562897 "CentOS-5 Key (CentOS 5 Official Signing Key) <centos-5-key@centos.org>"
from /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

Running rpm_check_debug

Running Transaction Test

Finished Transaction Test

Transaction Test Succeeded

Running Transaction

Installing : distcache 1/4

Updating : httpd 2/4

Installing : mod_ssl 3/4

Cleanup : httpd 4/4

Installed:

mod_ssl.i386 1:2.2.3-53.el5.centos.3

Dependency Installed:

distcache.i386 0:1.4.5-14.1

Dependency Updated:

httpd.i386 0:2.2.3-53.el5.centos.3

Complete!

2、HTTP 服务器上配置mod_ssl

[1] 建立服务器密钥

[root@300second ~]# cd /etc/pki/tls/certs/　 ←
进入HTTP服务器配置文件所在目录

[root@300second certs]# make server.key　 ← 建立服务器密钥

umask 77 ; \

/usr/bin/openssl genrsa -des3 1024 > server.key

Generating RSA private key, 1024 bit long modulus

................++++++

......++++++

e is 65537 (0x10001)

Enter pass phrase:　 ← 在这里输入口令

Verifying - Enter pass phrase:　 ← 确认口令，再次输入

[root@300second certs]# openssl rsa -in server.key -out server.key　 ←
从密钥中删除密码（以避免系统启动后被询问口令）

Enter pass phrase for server.key:　 ← 输入口令

writing RSA key

[2] 建立服务器公钥

[root@300second certs]# make server.csr　 ←
建立服务器密钥

umask 77 ; \

/usr/bin/openssl req -utf8 -new -key server.key -out server.csr

You are about to be asked to enter information that will be incorporated

into your certificate request.

What you are about to enter is what is called a Distinguished Name or a DN.

There are quite a few fields but you can leave some blank

For some fields there will be a default value,

If you enter '.', the field will be left blank.

-----

Country Name (2 letter code) [GB]:CN　 ← 输入国名

State or Province Name (full name) [Berkshire]:Fujian　 ← 输入省名

Locality Name (eg, city) [Newbury]:Quanzhou　 ← 输入城市名

Organization Name (eg, company) [My Company Ltd]:www.51cto.com　 ← 输入组织名（任意）

Organizational Unit Name (eg, section) []:　 ← 不输入，直接回车

Common Name (eg, your name or your server's hostname) []:www.51cto.com　 ← 输入通称（任意）

Email Address []:300second@163.com 　 ← 输入电子邮箱地址

Please enter the following 'extra' attributes

to be sent with your certificate request

A challenge password []:　 ← 不输入，直接回车

An optional company name []: 　 ← 不输入，直接回车

[3] 建立服务器证书

[root@300second certs]# openssl x509 -in server.csr
-out server.pem -req -signkey server.key -days 365　 ← 建立服务器证书

Signature ok

subject=/C=CN/ST=Fujian/L=Quanzhou/O=www.51cto.com/CN=www.51cto.com/emailAddress=300second@163.com

Getting Private key

[root@300second certs]# chmod 400 server.* ←
修改权限为400

[4] 设置SSL

[root@300second certs]# vi
/etc/httpd/conf.d/ssl.conf　 ← 修改SSL的设置文件

#DocumentRoot "/var/www/html"　 ← 找到这一行，将行首的“#”去掉

　↓

DocumentRoot "/var/www/html"　 ← 变为此状态

[5] 重新启动HTTP服务，让SSL生效

[root@300second certs]# /etc/rc.d/init.d/httpd
restart or systemctl restart httpd.service　← 重新启动HTTP服务器

停止 httpd: 　　　　　　　　　　　　　 [ 确定 ]

启动 httpd:　　　　　　　　　　　　　　[ 确定]

3、测试SSL

打开浏览器，在地址栏输入“https://服务器IP地址”或者“https://你的域名”后，如果出现提示安装服务器安全证书的窗口（如下所示），说明服务器已经支持SSL。