Apache mod_expires mod_deflate模块DSO动态安装
安装mod_expiresmod_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
[*]# 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
[*]#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
[*]# 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
[*]
验证：
[*]# ll /usr/local/apache/modules/
[*]total 21352
[*]-rw-r--r-- 1 root root 9106 Mar8 20:29 httpd.exp
[*]-rwxr-xr-x 1 root root 21704334 Mar8 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 Mar8 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 DEFLATEphpcssjs
[*]
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_modulemodules/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
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