配置默認主機,Apache用戶認證，域名跳轉，Apache訪問日誌,訪問日誌

時間 2019-12-23

原文原文鏈接

配置默認主機

任何一個域名指向這臺服務器，只要是沒有對應的虛擬主機，就會由這個默認虛擬主機來處理。先編輯一下配置文件httpd.confjavascript

vim /usr/local/apache2.4/conf/httpd.conf
搜索httpd-vhost找到這行吧行首的#號刪除

保存主配置文件，而後編輯虛擬主機配置文件：php

vim /usr/local/apache2.4/conf/extra/httpd-vhosts.conf
// 這個配置文件就是虛擬主機配置文件了，後面的操做都是在這個裏面完成的。

這裏面每個段，都是一個主機css

<VirtualHost *:80>
    ServerAdmin webmaster@dummy-host.example.com
    DocumentRoot "/usr/local/apache2.4/docs/dummy-host.example.com"
    ServerName dummy-host.example.com
    ServerAlias www.dummy-host.example.com
    ErrorLog "logs/dummy-host.example.com-error_log"
    CustomLog "logs/dummy-host.example.com-access_log" common
</VirtualHost>

<VirtualHost *:80>
    ServerAdmin webmaster@dummy-host2.example.com
    DocumentRoot "/usr/local/apache2.4/docs/dummy-host2.example.com"
    ServerName dummy-host2.example.com
    ErrorLog "logs/dummy-host2.example.com-error_log"
    CustomLog "logs/dummy-host2.example.com-access_log" common
</VirtualHost>

<VirtualHost *:80>
    ServerAdmin webmaster@dummy-host2.example.com                   //定義用戶的郵箱，沒用能夠直接刪掉
    DocumentRoot "/data/wwwroot/abc.com"    //定義網站的根目錄
    ServerName abc.com
    ErrorLog "logs/abc-host2.example.com-error_log"                  //指定錯誤日誌
    CustomLog "logs/abc-host2.example.com-access_log" common           //指定訪問日誌  
</VirtualHost>

建立一個網站根目錄[root@aminglinux-01 ~]# mkdir /data/wwwroot/abc.comhtml

定義一個phpjava

[root@aminglinux-01 ~]# vim /data/wwwroot/abc.com/index.php


<?php
echo "abc.com";
?>
~

測試一下虛擬主機

curl -x192.168.245.128:80 abc.comlinux

[root@aminglinux-01 ~]# curl -x192.168.245.128:80 abc.com
abc.com[root@aminglinux-01 ~]#

不生效的話能夠試着從新加載配置文件/usr/local/apache2.4/bin/apachectl gracefulweb

curl -x/--proxy 在給定的端口上使用HTTP代理apache

虛擬主機配置文件一但生效，其餘配置就會失效。vim

所謂默認主機，不管任何域名解析到這個ip上，都會訪問默認虛擬主機。瀏覽器

Apache用戶認證

vim /usr/local/apache2.4/conf/extra/httpd-vhosts.conf 把123.com那個虛擬主機編輯成以下內容

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/www.123.com"
    ServerName www.123.com
    <Directory /data/wwwroot/www.123.com> //指定認證的目錄
        AllowOverride AuthConfig //這個至關於打開認證的開關
        AuthName "123.com user auth" //自定義認證的名字，做用不大
        AuthType Basic //認證的類型，通常爲Basic，其餘類型阿銘沒用過
        AuthUserFile /data/.htpasswd  //指定密碼文件所在位置
        require valid-user //指定須要認證的用戶爲所有可用用戶

改爲：

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/abc.com"
    ServerName abc.com
    ServerAlias www.abc.com
<Directory /data/wwwroot/abc.com>
    AllowOverride AuthConfig
    AuthName "abc.com user auth"
    AuthType Basic
    AuthUserFile /data/.htpasswd
    require valid-user
    </Directory>
    ErrorLog "logs/abc.com-error_log"
    CustomLog "logs/abc.com-access_log" common
</VirtualHost>

而後添加如下用戶名和密碼以及所在位置

[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/htpasswd -cm /data/.htpasswd aming
New password: 
Re-type new password: 
Adding password for user aming
[root@aminglinux-01 ~]#

-c 建立

htpasswd第一次建立用戶要用到-c 參數第2次就不能加-c了，不然會覆蓋前面已創建好的用戶

-m 指定密碼加密類型

從新加載

[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl -t
Syntax OK
[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl graceful
[root@aminglinux-01 ~]#

驗證

curl -x192.168.245.128:80 abc.com

[root@aminglinux-01 ~]# curl -x192.168.245.128:80 abc.com
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>401 Unauthorized</title>
</head><body>
<h1>Unauthorized</h1>
<p>This server could not verify that you
are authorized to access the document
requested.  Either you supplied the wrong
credentials (e.g., bad password), or your
browser doesn't understand how to supply
the credentials required.</p>
</body></html>

出現401報錯，從瀏覽器輸入網址，提示須要輸入用戶名密碼

或者curl -x192.168.245.128:80 -uaming:123456 abc.com -I 出現狀態碼 200

[root@aminglinux-01 ~]# curl -x192.168.245.128:80 -uaming:123456 abc.com -I
HTTP/1.1 200 OK
Date: Mon, 09 Oct 2017 10:16:45 GMT
Server: Apache/2.4.27 (Unix) PHP/5.6.30
X-Powered-By: PHP/5.6.30
Content-Type: text/html; charset=UTF-8

這樣就成功了

還能夠針對單個文件進行認證

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/www.123.com"
    ServerName www.123.com
    <FilesMatch admin.php>   
        AllowOverride AuthConfig
        AuthName "123.com user auth"
        AuthType Basic
        AuthUserFile /data/.htpasswd
        require valid-user
    </FilesMatch>
</VirtualHost>

惟一的區別就是<FilesMatch admin.php> ，指定的是單個文件纔會出現認證。而以前是用Directory指定整個目錄

FilesMatch後面的文件是相對路徑，而Files、Directory則使用絕對路徑

域名跳轉

需求，把2111.com.cn域名跳轉到www.abc.com，配置以下：

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/www.123.com"
    ServerName www.123.com
    ServerAlias 123.com
    <IfModule mod_rewrite.c> //須要mod_rewrite模塊支持
        RewriteEngine on  //打開rewrite功能
        RewriteCond %{HTTP_HOST} !^www.123.com$  //定義rewrite的條件，主機名（域名）不是www.123.com知足條件
        RewriteRule ^/(.*)$ http://www.123.com/$1 [R=301,L] //定義rewrite規則，當知足上面的條件時，這條規則纔會執行
</IfModule>
</VirtualHost> 
 /usr/local/apache2/bin/apachectl -M|grep -i rewrite //若無該模塊，須要編輯配置文件httpd.conf，刪除rewrite_module (shared) 前面的#

實際寫成這樣子：

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/abc.com"
    ServerName abc.com
    ServerAlias abc.com www.example.com 2111.com.cn
#<Directory /data/wwwroot/abc.com> 
#    AllowOverride AuthConfig 
#    AuthName "abc.com user auth" 
#    AuthType Basic 
#    AuthUserFile /data/.htpasswd 
#    require valid-user 
#    </Directory>
<IfModule mod_rewrite.c> 
        RewriteEngine on  
        RewriteCond %{HTTP_HOST} !^www.abc.com$  
        RewriteRule ^/(.*)$ http://www.abc.com/$1 [R=301,L] 
</IfModule>
    ErrorLog "logs/abc.com-error_log"
    CustomLog "logs/abc.com-access_log" common
</VirtualHost>

檢測

檢測，重新加載

[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl -t
Syntax OK
[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl graceful
[root@aminglinux-01 ~]#

檢測前先查看這個模塊有沒有起來 /usr/local/apache2.4/bin/apachectl -M|grep -i rewrite

若是沒有起來須要編輯配置文件httpd.conf

[root@aminglinux-01 ~]# vi /usr/local/apache2.4/conf/httpd.conf

搜索一下rewrite

LoadModule rewrite_module modules/mod_rewrite.so
找到這一行，把#號刪掉

在檢測rewrite模塊

[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl -M|grep rewrite
 rewrite_module (shared)
[root@aminglinux-01 ~]#

檢測，從新加載

Syntax OK
[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl graceful

查看結果 -I 是隻看狀態碼

[root@aminglinux-01 ~]# curl -x192.168.245.128:80  2111.com.cn
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>301 Moved Permanently</title>
</head><body>
<h1>Moved Permanently</h1>
<p>The document has moved <a href="http://www.abc.com/">here</a>.</p>
</body></html>

[root@aminglinux-01 ~]# curl -x192.168.245.128:80  2111.com.cn -I
HTTP/1.1 301 Moved Permanently
Date: Mon, 09 Oct 2017 14:08:44 GMT
Server: Apache/2.4.27 (Unix) PHP/5.6.30
Location: http://www.abc.com/
Content-Type: text/html; charset=iso-8859-1

[root@aminglinux-01 ~]#

Apache訪問日誌

訪問日誌記錄用戶的每個請求
vim /usr/local/apache2.4/conf/httpd.conf //搜索LogFormat

日誌格式，默認是common

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common

"%{User-Agent}i" 用戶代理

"%{Referer}i" 瀏覽器上一次訪問的網站是什麼

那怎樣去用combined呢，須要修改虛擬主機配置文件

ErrorLog "logs/abc.com-error_log"
    CustomLog "logs/abc.com-access_log" common

修改成

ErrorLog "logs/abc.com-error_log"
    CustomLog "logs/abc.com-access_log" combined

從新加載配置文件 -t,graceful

在訪問一下：[root@aminglinux-01 ~]# curl -x192.168.245.128:80 2111.com.cn -I

再去查看日誌就會發現變化

[root@aminglinux-01 ~]# cat /usr/local/apache2.4/logs/abc.com-access_log

原來common

[root@aminglinux-01 ~]# cat /usr/local/apache2.4/logs/abc.com-access_log
192.168.245.128 - - [09/Oct/2017:17:07:36 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - - [09/Oct/2017:17:31:25 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - - [09/Oct/2017:17:53:56 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.1 - - [09/Oct/2017:17:55:37 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - - [09/Oct/2017:17:55:40 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - - [09/Oct/2017:17:56:03 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - - [09/Oct/2017:17:57:26 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - - [09/Oct/2017:17:58:10 +0800] "GET HTTP://www.abc.com/ HTTP/1.1" 200 7
192.168.245.1 - - [09/Oct/2017:17:59:16 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - - [09/Oct/2017:18:01:40 +0800] "GET HTTP://www.abc.com/ HTTP/1.1" 200 7
192.168.245.1 - - [09/Oct/2017:18:03:15 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - - [09/Oct/2017:18:03:18 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - - [09/Oct/2017:18:10:01 +0800] "GET HTTP://abc.com/ HTTP/1.1" 401 381
192.168.245.1 - - [09/Oct/2017:18:11:03 +0800] "GET /1.php HTTP/1.1" 401 381
192.168.245.1 - - [09/Oct/2017:18:13:17 +0800] "GET /1.php HTTP/1.1" 401 381
192.168.245.1 - aming [09/Oct/2017:18:14:54 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - aming [09/Oct/2017:18:14:57 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - aming [09/Oct/2017:18:15:40 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - aming [09/Oct/2017:18:15:43 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - aming [09/Oct/2017:18:16:26 +0800] "HEAD HTTP://abc.com/ HTTP/1.1" 200 -
192.168.245.128 - aming [09/Oct/2017:18:16:39 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - aming [09/Oct/2017:18:16:45 +0800] "HEAD HTTP://abc.com/ HTTP/1.1" 200 -
192.168.245.128 - - [09/Oct/2017:22:08:34 +0800] "GET HTTP://2111.com.cn/ HTTP/1.1" 301 227
192.168.245.128 - - [09/Oct/2017:22:08:44 +0800] "HEAD HTTP://2111.com.cn/ HTTP/1.1" 301 -
192.168.245.128 - - [09/Oct/2017:22:11:47 +0800] "HEAD HTTP://2111.com.cn/ HTTP/1.1" 301 -

改成combined

[root@aminglinux-01 ~]# cat /usr/local/apache2.4/logs/abc.com-access_log
192.168.245.128 - - [09/Oct/2017:17:07:36 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - - [09/Oct/2017:17:31:25 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - - [09/Oct/2017:17:53:56 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.1 - - [09/Oct/2017:17:55:37 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - - [09/Oct/2017:17:55:40 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - - [09/Oct/2017:17:56:03 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - - [09/Oct/2017:17:57:26 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - - [09/Oct/2017:17:58:10 +0800] "GET HTTP://www.abc.com/ HTTP/1.1" 200 7
192.168.245.1 - - [09/Oct/2017:17:59:16 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - - [09/Oct/2017:18:01:40 +0800] "GET HTTP://www.abc.com/ HTTP/1.1" 200 7
192.168.245.1 - - [09/Oct/2017:18:03:15 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - - [09/Oct/2017:18:03:18 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - - [09/Oct/2017:18:10:01 +0800] "GET HTTP://abc.com/ HTTP/1.1" 401 381
192.168.245.1 - - [09/Oct/2017:18:11:03 +0800] "GET /1.php HTTP/1.1" 401 381
192.168.245.1 - - [09/Oct/2017:18:13:17 +0800] "GET /1.php HTTP/1.1" 401 381
192.168.245.1 - aming [09/Oct/2017:18:14:54 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - aming [09/Oct/2017:18:14:57 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - aming [09/Oct/2017:18:15:40 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.1 - aming [09/Oct/2017:18:15:43 +0800] "GET /1.php HTTP/1.1" 404 203
192.168.245.128 - aming [09/Oct/2017:18:16:26 +0800] "HEAD HTTP://abc.com/ HTTP/1.1" 200 -
192.168.245.128 - aming [09/Oct/2017:18:16:39 +0800] "GET HTTP://abc.com/ HTTP/1.1" 200 7
192.168.245.128 - aming [09/Oct/2017:18:16:45 +0800] "HEAD HTTP://abc.com/ HTTP/1.1" 200 -
192.168.245.128 - - [09/Oct/2017:22:08:34 +0800] "GET HTTP://2111.com.cn/ HTTP/1.1" 301 227
192.168.245.128 - - [09/Oct/2017:22:08:44 +0800] "HEAD HTTP://2111.com.cn/ HTTP/1.1" 301 -
192.168.245.128 - - [09/Oct/2017:22:11:47 +0800] "HEAD HTTP://2111.com.cn/ HTTP/1.1" 301 -
192.168.245.128 - - [09/Oct/2017:22:36:01 +0800] "HEAD HTTP://2111.com.cn/ HTTP/1.1" 301 - "-" "curl/7.29.0"
192.168.245.128 - - [09/Oct/2017:22:36:05 +0800] "HEAD HTTP://2111.com.cn/ HTTP/1.1" 301 - "-" "curl/7.29.0"

訪問日誌不記錄靜態文件

網站大多元素爲靜態文件，如圖片、css、js等，這些元素能夠不用記錄
把虛擬主機配置文件改爲以下：

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/abc.com"
    ServerName abc.com
    ServerAlias abc.com www.example.com 2111.com.cn
#<Directory /data/wwwroot/abc.com> 
#    AllowOverride AuthConfig 
#    AuthName "abc.com user auth" 
#    AuthType Basic 
#    AuthUserFile /data/.htpasswd 
#    require valid-user 
#    </Directory>
<IfModule mod_rewrite.c>
        RewriteEngine on
        RewriteCond %{HTTP_HOST} !^www.abc.com$
        RewriteRule ^/(.*)$ http://www.abc.com/$1 [R=301,L]
</IfModule>
    ErrorLog "logs/abc.com-error_log"
    SetEnvIf Request_URI ".*\.gif$" img
    SetEnvIf Request_URI ".*\.jpg$" img 
    SetEnvIf Request_URI ".*\.png$" img
    SetEnvIf Request_URI ".*\.bmp$" img
    SetEnvIf Request_URI ".*\.swf$" img
    SetEnvIf Request_URI ".*\.js$" img
    SetEnvIf Request_URI ".*\.css$" img
    CustomLog "logs/abc.com-access_log" combined env=!img  //表示符合img的請求都不會記錄到日誌裏。
</VirtualHost>

訪問日誌切割

日誌一直記錄總有一天會把整個磁盤佔滿，因此有必要讓它自動切割，並刪除老的日誌文件
把虛擬主機配置文件改爲以下：

<VirtualHost *:80>
    DocumentRoot "/data/wwwroot/abc.com"
    ServerName abc.com
    ServerAlias abc.com www.example.com 2111.com.cn
#<Directory /data/wwwroot/abc.com> 
#    AllowOverride AuthConfig 
#    AuthName "abc.com user auth" 
#    AuthType Basic 
#    AuthUserFile /data/.htpasswd 
#    require valid-user 
#    </Directory>
<IfModule mod_rewrite.c>
        RewriteEngine on
        RewriteCond %{HTTP_HOST} !^www.abc.com$
        RewriteRule ^/(.*)$ http://www.abc.com/$1 [R=301,L]
</IfModule>
    ErrorLog "logs/abc.com-error_log"
    SetEnvIf Request_URI ".*\.gif$" img
    SetEnvIf Request_URI ".*\.jpg$" img
    SetEnvIf Request_URI ".*\.png$" img
    SetEnvIf Request_URI ".*\.bmp$" img
    SetEnvIf Request_URI ".*\.swf$" img
    SetEnvIf Request_URI ".*\.js$" img
    SetEnvIf Request_URI ".*\.css$" img
    CustomLog "|/usr/local/apache2.4/bin/rotatelogs -l logs/abc.com-access_%Y%m%d.log 86400" combined env=!img
</VirtualHost>

用apache自帶分割工具rotatelogs，以天天進行日誌分割。-l的意思是用cst時間，不用-l是utc時間

配置靜態元素過時時間

瀏覽器訪問網站的圖片時會把靜態的文件緩存在本地電腦裏，這樣下次再訪問時就不用去遠程下載了
增長配置

<IfModule mod_rewrite.c>
        RewriteEngine on
        RewriteCond %{HTTP_HOST} !^www.abc.com$
        RewriteRule ^/(.*)$ http://www.abc.com/$1 [R=301,L]
</IfModule>
<IfModule mod_expires.c>
    ExpiresActive on  
    ExpiresByType image/gif  "access plus 1 days"
    ExpiresByType image/jpeg "access plus 24 hours"
    ExpiresByType image/png "access plus 24 hours"
    ExpiresByType text/css "now plus 2 hour"
    ExpiresByType application/x-javascript "now plus 2 hours"
    ExpiresByType application/javascript "now plus 2 hours"
    ExpiresByType application/x-shockwave-flash "now plus 2 hours"
    ExpiresDefault "now plus 0 min"
</IfModule>


    ErrorLog "logs/abc.com-error_log"
    SetEnvIf Request_URI ".*\.gif$" img
    SetEnvIf Request_URI ".*\.jpg$" img
    SetEnvIf Request_URI ".*\.png$" img
    SetEnvIf Request_URI ".*\.bmp$" img
    SetEnvIf Request_URI ".*\.swf$" img
    SetEnvIf Request_URI ".*\.js$" img
    SetEnvIf Request_URI ".*\.css$" img
    CustomLog "|/usr/local/apache2.4/bin/rotatelogs -l logs/abc.com-access_%Y%m%d.log 86400" combined env=!img

而後須要增長一個模塊

先看看這個模塊有沒有打開

[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl -M |grep expire
[root@aminglinux-01 ~]#

明顯沒有打開

編輯主配置文件：/usr/local/apache2.4/conf/httpd.conf

找到expire哪一行，把前面#號刪掉

[root@aminglinux-01 ~]# /usr/local/apache2.4/bin/apachectl -M |grep expire
 expires_module (shared)
[root@aminglinux-01 ~]#

curl測試，看cache-control: max-age

擴展學習：

apache虛擬主機開啓php的短標籤 http://ask.apelearn.com/question/5370
apache日誌記錄代理IP以及真實客戶端IP http://ask.apelearn.com/question/960
apache只記錄指定URI的日誌 http://ask.apelearn.com/question/981
apache日誌記錄客戶端請求的域名 http://ask.apelearn.com/question/1037
apache 日誌切割問題 http://ask.apelearn.com/question/566

相關標籤/搜索

每日一句

每一个你不满意的现在，都有一个你没有努力的曾经。

配置默認主機,Apache用戶認證，域名跳轉，Apache訪問日誌,訪問日誌

配置默認主機

測試一下虛擬主機

Apache用戶認證

vim /usr/local/apache2.4/conf/extra/httpd-vhosts.conf 把123.com那個虛擬主機編輯成以下內容

而後添加如下用戶名和密碼以及所在位置

從新加載

驗證

還能夠針對單個文件進行認證

域名跳轉

需求，把2111.com.cn域名跳轉到www.abc.com，配置以下：

檢測

Apache訪問日誌

訪問日誌記錄用戶的每個請求

vim /usr/local/apache2.4/conf/httpd.conf //搜索LogFormat

那怎樣去用combined呢，須要修改虛擬主機配置文件

再去查看日誌就會發現變化

訪問日誌不記錄靜態文件

網站大多元素爲靜態文件，如圖片、css、js等，這些元素能夠不用記錄

把虛擬主機配置文件改爲以下：

訪問日誌切割

日誌一直記錄總有一天會把整個磁盤佔滿，因此有必要讓它自動切割，並刪除老的日誌文件

把虛擬主機配置文件改爲以下：

配置靜態元素過時時間

瀏覽器訪問網站的圖片時會把靜態的文件緩存在本地電腦裏，這樣下次再訪問時就不用去遠程下載了

增長配置

而後須要增長一個模塊

curl測試，看cache-control: max-age

擴展學習：