Apache mod_expires mod_deflate模块DSO动态安装

zhouandtao

　　安装mod_expires
　　mod_expires模块添加是启用对有效期控制，也可以加里面，有效控制带宽成本

• #cd /usr/local/src/httpd-2.2.17/modules/metadata
  
• #apxs -c -i -a mod_expires.c
  

　　输出

• [root@web-02 metadata]# apxs -c -i -a mod_expires.c
  
• /usr/local/apache/build/libtool --silent --mode=compile gcc -prefer-pic   -DLINUX=2 -D_REENTRANT -D_GNU_SOURCE -g -O2 -pthread -I/usr/local/apache/include  -I/usr/local/apache/include   -I/usr/local/apache/include   -c -o mod_expires.lo mod_expires.c && touch mod_expires.slo
  
• /usr/local/apache/build/libtool --silent --mode=link gcc -o mod_expires.la  -rpath /usr/local/apache/modules -module -avoid-version    mod_expires.lo
  
• /usr/local/apache/build/instdso.sh SH_LIBTOOL='/usr/local/apache/build/libtool' mod_expires.la /usr/local/apache/modules
  
• /usr/local/apache/build/libtool --mode=install cp mod_expires.la /usr/local/apache/modules/
  
• cp .libs/mod_expires.so /usr/local/apache/modules/mod_expires.so
  
• cp .libs/mod_expires.lai /usr/local/apache/modules/mod_expires.la
  
• cp .libs/mod_expires.a /usr/local/apache/modules/mod_expires.a
  
• chmod 644 /usr/local/apache/modules/mod_expires.a
  
• ranlib /usr/local/apache/modules/mod_expires.a
  
• PATH="$PATH:/sbin" ldconfig -n /usr/local/apache/modules
  
• ----------------------------------------------------------------------
  
• Libraries have been installed in:
  
•    /usr/local/apache/modules
  
• 
  
• If you ever happen to want to link against installed libraries
  
• in a given directory, LIBDIR, you must either use libtool, and
  
• specify the full pathname of the library, or use the `-LLIBDIR'
  
• flag during linking and do at least one of the following:
  
•    - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
  
•      during execution
  
•    - add LIBDIR to the `LD_RUN_PATH' environment variable
  
•      during linking
  
•    - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
  
•    - have your system administrator add LIBDIR to `/etc/ld.so.conf'
  
• 
  
• See any operating system documentation about shared libraries for
  
• more information, such as the ld(1) and ld.so(8) manual pages.
  
• ----------------------------------------------------------------------
  
• chmod 755 /usr/local/apache/modules/mod_expires.so
  

　　在httpd.conf里添加即可

• ExpiresActive on
  
• ExpiresDefault "access plus 14 month"
  
• ExpiresByType text/html "access plus 14 months"
  
• ExpiresByType text/css "access plus 14 months"
  
• ExpiresByType image/gif "access plus 14 months"
  
• ExpiresByType image/jpeg "access plus 14 months"
  
• ExpiresByType image/jpg "access plus 14 months"
  
• ExpiresByType image/png "access plus 14 months"
  
• EXpiresByType application/x-javascript "access plus 14 months"
  

　　验证

• [root@web-02 metadata]#  ll /usr/local/apache/modules/
  
• total 21788
  
• -rw-r--r-- 1 root root     9106 Mar 20 13:43 httpd.exp
  
• -rwxr-xr-x 1 root root 21998563 Mar 20 14:14 libphp5.so
  
• -rwxr-xr-x 1 root root    58234 Mar 24 20:54 mod_deflate.so
  
• -rwxr-xr-x 1 root root    36265 Mar 30 17:24 mod_expires.so
  
• -rwxr-xr-x 1 root root   162527 Mar 20 13:44 mod_rewrite.so
  

mod_deflate 模块提供了DEFLATE 输出过滤器，允许服务器在将输出内容发送到客户端以前进行压缩，以节约带宽。

　　安装过程

• #/usr/local/src/httpd-2.2.17/modules/filters
  
• #apxs -i -c -a mod_deflate.c
  

　　输出

• [root@WEB-02 filters]# apxs -c -i -a mod_deflate.c
  
• /usr/lib64/apr-1/build/libtool --silent --mode=compile gcc -prefer-pic   -DLINUX=2 -D_REENTRANT -D_GNU_SOURCE -pthread -I/usr/local/apache/include  -I/usr/include/apr-1   -I/usr/include/apr-1   -c -o mod_deflate.lo mod_deflate.c && touch mod_deflate.slo
  
• /usr/lib64/apr-1/build/libtool --silent --mode=link gcc -o mod_deflate.la  -rpath /usr/local/apache/modules -module -avoid-version    mod_deflate.lo
  
• /usr/local/apache/build/instdso.sh SH_LIBTOOL='/usr/lib64/apr-1/build/libtool' mod_deflate.la /usr/local/apache/modules
  
• /usr/lib64/apr-1/build/libtool --mode=install cp mod_deflate.la /usr/local/apache/modules/
  
• cp .libs/mod_deflate.so /usr/local/apache/modules/mod_deflate.so
  
• cp .libs/mod_deflate.lai /usr/local/apache/modules/mod_deflate.la
  
• cp .libs/mod_deflate.a /usr/local/apache/modules/mod_deflate.a
  
• chmod 644 /usr/local/apache/modules/mod_deflate.a
  
• ranlib /usr/local/apache/modules/mod_deflate.a
  
• PATH="$PATH:/sbin" ldconfig -n /usr/local/apache/modules
  
• ----------------------------------------------------------------------
  
• Libraries have been installed in:
  
•    /usr/local/apache/modules
  
• 
  
• If you ever happen to want to link against installed libraries
  
• in a given directory, LIBDIR, you must either use libtool, and
  
• specify the full pathname of the library, or use the `-LLIBDIR'
  
• flag during linking and do at least one of the following:
  
•    - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
  
•      during execution
  
•    - add LIBDIR to the `LD_RUN_PATH' environment variable
  
•      during linking
  
•    - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
  
•    - have your system administrator add LIBDIR to `/etc/ld.so.conf'
  
• 
  
• See any operating system documentation about shared libraries for
  
• more information, such as the ld(1) and ld.so(8) manual pages.
  
• ----------------------------------------------------------------------
  
• chmod 755 /usr/local/apache/modules/mod_deflate.so
  
• [activating module `deflate' in /usr/local/apache/conf/httpd.conf]
  

　　验证：

• [root@WEB-02 filters]# ll /usr/local/apache/modules/
  
• total 21352
  
• -rw-r--r-- 1 root root     9106 Mar  8 20:29 httpd.exp
  
• -rwxr-xr-x 1 root root 21704334 Mar  8 20:38 libphp5.so
  
• -rwxr-xr-x 1 root root    32479 Mar 30 17:34 mod_deflate.so
  
• -rwxr-xr-x 1 root root    81566 Mar  8 20:29 mod_rewrite.so
  

　　正确安装后，修改httpd.conf添加下面的内容即可

• 
  
• DeflateCompressionLevel 9
  
• AddOutputFilterByType   DEFLATE text/plain application/x-httpd-php
  
• AddOutputFilter         DEFLATE  php  css  js
  
• 
  

PS：


apxs参数

• -i 此选项表示需要执行安装操作，以安装一个或多个动态共享对象到服务器的modules目录中。
  
• -a 此选项自动增加一个LoadModule行到httpd.conf文件中，以激活此模块，或者，如果此行已经存在，则启用之。
  
• -A 与 -a 选项类似，但是它增加的LoadModule命令有一个井号前缀(#)，即此模块已经准备就绪但尚未启用。
  
• -c 此选项表示需要执行编译操作。它首先会编译C源程序(.c)files为对应的目标代码文件(.o)，然后连接这些目标代码和files中其余的目标代码 文件(.o和.a)，以生成动态共享对象dsofile 。如果没有指定 -o 选项，则此输出文件名由files中的第一个文件名推测得到，也就是默认为mod_name.so 。
  

　　PS:安装此模块后，一定要检查下配置文件语法

• # apachectl -t
  

　　如果出现这样的错误

• httpd: Syntax error on line 58 of /opt/apache/conf/httpd.conf: Cannot load /opt/apache/modules/mod_deflate.so into server: /opt/apache/modules/mod_deflate.so: undefined symbol: inflateEnd
  

　　解决办法有二
　　办法1

• 需要在 LoadModule deflate_module  modules/mod_deflate.so 的前面加载zlib.so
  
• 
  
• a.32操作系统增加以下内容:
  
• LoadFile /usr/lib/libz.so
  
• LoadModule deflate_module     modules/mod_deflate.so
  
• 
  
• b.64操作系统增加以下内容:
  
• LoadFile /usr/lib64/libz.so
  
• LoadModule deflate_module     modules/mod_deflate.so  
  

　　办法2

• vi /usr/local/apache2/bin/apr-config
  
• 修改LDFLAGS=" " 为 LDFLAGS="-lz"
  
• 然后再apxs -i -c -a mod_deflate.c