base安裝(操作步驟如下):
ifconfig
hostname server1
vi /etc/sysconfig/network
vi /etc/yum.repos.d/rhel-source.repo ##配置yum源
yum repolist ##yum的更新
yum install -y vim lftp
yum install -y openssh-clients
cd /etc/udev/
ls
cd rules.d/
ls
rm -fr 70-persistent-net.rules
ip addr
ls
cd/etc/sysconfig/network-scripts/
ls
vim ifcfg-eth0
vim /etc/hosts
cd /etc/ssh/
ls
rm -fr ssh_host_* ##刪除ssh所給的鑰匙(如果ssh連接出現問題,就在這刪除再次連接)
ls
iptables -L
cd /etc/sysconfig/
ls
rm -fr iptables
ls
pwd
chkconfig iptables off ##關閉火牆
vim /etc/sysconfig/selinux ##在文件中將selinux狀態改爲disabled
vm1(varnish輪詢主機);
yum install -y *
(安裝varnish.x86_64 0:3.0.5-1.el6 varnish-libs.x86_64 0:3.0.5-1.el6這兩個安裝包下載安裝varnish )
cd /etc/varnish/
vim /etc/sysconfig/varnish (設置varnish默認端口是80VARNISH_LISTEN_PORT=80)
/etc/init.d/varnish reload
vim /etc/varnish/default.vcl ##配置varnish
/etc/init.d/varnish start
/etc/init.d/varnish reload
-------------------------------------------------------------------------------------------
###varnish的配置
[root@server1 varnish]# cat default.vcl
###定義多個不同域名站點的後端服務器
backend web1 {
.host = "172.25.78.2"; ###配置一個後端服務器
.port = "80";
}
backend web2 {
.host = "172.25.78.3";
.port = "80";
}
director lb round-robin { #把多個後端聚合爲一個組,並檢測後端健康狀況
{.backend = web1;}
{.backend = web2;}
}
#當訪問 www.westos.org 域名時從 web1 上取數據,訪問 bbs.westos.org 域名時到 web2 取數據,訪問其他頁面報錯。
sub vcl_recv {
if (req.http.host ~ "^(www.)?westos.org") {
set req.http.host = "www.westos.org";
set req.backend = lb;
return (pass); ##通常爲了方便測試,不進行緩存
} elsif (req.http.host ~ "^bbs.westos.org") {
set req.backend = web1;
} else {error 404 "westos cache";
}
}
###查看緩存命中情況
sub vcl_deliver {
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT from westos cache";
}
else {
set resp.http.X-Cache = "MISS from westos cache";
}
return (deliver);
}
###測試緩存命中
[root@foundation78 ~]# curl -I www.westos.org
HTTP/1.1 200 OK
Server: Apache/2.2.15 (Red Hat)
Last-Modified: Wed, 19 Jul 2017 14:21:56 GMT
ETag: "9f614-20-554ac5ab83cc8"
Content-Type: text/html; charset=UTF-8
Content-Length: 32
Accept-Ranges: bytes
Date: Thu, 20 Jul 2017 03:22:27 GMT
X-Varnish: 1895199082
Age: 0
Via: 1.1 varnish
Connection: keep-alive
X-Cache: MISS from westos cache #未命中
[root@foundation78 ~]# curl -I www.westos.org
HTTP/1.1 200 OK
Server: Apache/2.2.15 (Red Hat)
Last-Modified: Wed, 19 Jul 2017 14:21:56 GMT
ETag: "9f614-20-554ac5ab83cc8"
Content-Type: text/html; charset=UTF-8
Content-Length: 32
Accept-Ranges: bytes
Date: Thu, 20 Jul 2017 03:22:29 GMT
X-Varnish: 1895199083 1895199082
Age: 2
Via: 1.1 varnish
Connection: keep-alive
X-Cache: HIT from westos cache ##命中
----------------------------------------------------------------------------------------------------------------------
### 通過 varnishadm 手動清除緩存
# varnishadm ban.url .*$ #清除所有
# varnishadm ban.url /index.html #清除 index.html 頁面緩存
# varnishadm ban.url /admin/$ #清除 admin 目錄緩存
在vm2上(充當web1):
vim /etc/httpd/conf/httpd.conf
NameVirtualHost *:80(打開此端口)
<VirtualHost *:80>
DocumentRoot /var/www/html
ServerName server2
</VirtualHost>
<VirtualHost *:80>
DocumentRoot /www/bbs
ServerName bbs.westos.org
</VirtualHost>
<VirtualHost *:80>
DocumentRoot /www/westos
ServerName www.westos.org
</VirtualHost>
yum install -y httpd
/etc/init.d/httpd start
cd /var/www/html/
ls
vim index.html
vim /etc/httpd/conf/httpd.conf
mkdir /www/bbs -p
mkdir /www/westos
cd /www/bbs/
vim index.html
cd /www/westos/
vim index.html
/etc/init.d/httpd restart
vim /etc/hosts (給www.westos.org和bbs.westos.org作解析)
vm3(充當web2):
yum install -y httpd
/etc/init.d/httpd start
cd /var/www/html/
vim index.html
在物理機測試:
vim /etc/hosts (作解析)
curl 172.25.78.1
curl bbs.westos.org
curl www.westos.org
curl www.westos.org/index.html
------------------------------------------------------------------------------------------------------------------
###varnish cdn 推送平臺####
CDN推送
1.vim /etc/httpd/conf/httpd.conf
因爲做varnish時候把監聽端口改成了80,所以做cdn推送時候要更改http的監聽端口爲8080
2.yum install unzip.x86_64 -y
3.unzip bansys.zip -d /var/www/html/
解壓bansys到html目錄下,可以直接網頁推送(cd /var/www/html/bansys/ mv * .. rm -fr bansys/)
4.yum install -y php
因爲cdn裏面的文件是使用php編寫的,需要下載php編譯器(需要安裝 php 支持)
5./etc/init.d/varnish start
/etc/init.d/httpd start
6.vim /var/www/html/config.php(配置文件更改如下)
*****************************************
*<?php
* $var_group1 = array(
* 'host' =>array('172.25.78.1'),
* 'port' => '80',
*);
*
*//varnish 羣組定義
*//對主機列表進行綁定
*$VAR_CLUSTER = array(
* 'www.westos.org' =>$var_group1,
*);
*
*//varnish 版本//2.x 和 3.x 推送命令不一樣
*$VAR_VERSION = "3";
*?>
******************************************
#bansys 有兩種工作模式,分別是:telnet 和 http 模式。
#telnet 模式需要關閉 varnish 服務管理端口的驗證,註釋掉/etc/sysconfig/varnish 文件中的 “ -S ${VARNISH_SECRET_FILE}”這行,重啓 varnish 服務即可。
#如果是 http 模式需要對 varnish 做以下設置:
# vim /etc/varnish/default.vcl
acl westos {
#設置訪問控制
"127.0.0.1";
"192.168.0.0"/24;
}
sub vcl_recv {
if (req.request == "BAN"){
if (!client.ip ~ westos) {
error 405 "Notallowed.";
}
ban("req.url ~ " +req.url);
error 200 "ban added";
}
}
# service varnish reload