转载

RedHat 7 安装HTTPD

1.查看操作系统版本

[root@aws srclib]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)

2.首先安装apr,本例子是1.6.3版本

wget http://mirrors.cnnic.cn/apache/apr/apr-1.6.3.tar.gz

下载之后就是解压

tar -xzvf apr-1.6.3.tar.gz

进入apr目录，执行configure命令，该命令本例就一个参数，设置安装目录

cd /usr/local/src/apr-1.6.3
./configure --prefix=/usr/local/apr

配置好之后，执行make和make install

make && make install

3.安装apr-util，本例的版本是1.6.1

wget http://mirrors.cnnic.cn/apache/apr/apr-util-1.6.1.tar.bz2

在解压的时候有可能遇到报错：

[root@aws src]# tar -jxvf apr-util-1.6.1.tar.bz2
tar (child): bzip2: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now

解决的办法是：

yum -y install bzip2

接下来和安装apr一样，先运行configure命令

./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr

然后执行安装命令：

make && make install

在安装过程中可能遇到如下错误：

pr_xml.lo -c xml/apr_xml.c && touch xml/apr_xml.lo
xml/apr_xml.c:35:19: fatal error: expat.h: No such file or directory
#include <expat.h>
^
compilation terminated.
make[1]: *** [xml/apr_xml.lo] Error 1
make[1]: Leaving directory `/usr/local/src/apr-util-1.6.1

解决办法是安装expat库

yum install expat-devel

4.安装httpd

本例用的是2.4.29的版本

wget http://mirrors.cnnic.cn/apache/httpd/httpd-2.4.29.tar.gz

同样下载后就是解压

tar -xvzf httpd-2.4.29.tar.gz

进入目录，执行configure命令

./configure --prefix=/usr/local/apache2.4 --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util --enable-so --enable-mods-shared=most --with-included-apr

--enable-so的意思是启用DSO，也就是把某些功能以模块（so）的形式展现出来
--enable-mods-shared=most表示以共享的方式安装大多数功能模块，安装后会在modules目录下面看到。

如果遇到下面的报错：

checking for gcc option to accept ISO C99... -std=gnu99
checking for pcre-config... false
configure: error: pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/

解决办法是：

yum install -y pcre pcre-devel

最后编译和安装

make
make install

以上两个步骤都可以用命令echo $?来检查是否执行成功。

在make的时候可能会报错如下：

/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_GetErrorCode'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_SetEntityDeclHandler'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_ParserCreate'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_SetCharacterDataHandler'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_ParserFree'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_SetUserData'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_StopParser'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_Parse'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_ErrorString'
/usr/local/apr-util/lib/libaprutil-1.so: undefined reference to `XML_SetElementHandler'
collect2: error: ld returned 1 exit status
make[2]: *** [htpasswd] Error 1
make[2]: Leaving directory `/usr/local/src/httpd-2.4.29/support'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/src/httpd-2.4.29/support'
make: *** [all-recursive] Error 1

解决办法是：

cp -rf /usr/local/src/apr-1.6.3 /usr/local/src/httpd-2.4.29/srclib/apr
cp -rf /usr/local/src/apr-util-1.6.1 /usr/local/src/httpd-2.4.29/srclib/apr-util

5.至此httpd就安装完成了

可以用下面的命令查看安装了那些模块:

[root@aws srclib]# /usr/local/apache2.4/bin/apachectl -M
Loaded Modules:
core_module (static)
so_module (static)
http_module (static)
mpm_event_module (static)
authn_file_module (shared)
authn_core_module (shared)
authz_host_module (shared)
authz_groupfile_module (shared)
authz_user_module (shared)
authz_core_module (shared)
access_compat_module (shared)
auth_basic_module (shared)
reqtimeout_module (shared)
filter_module (shared)
mime_module (shared)
log_config_module (shared)
env_module (shared)
headers_module (shared)
setenvif_module (shared)
version_module (shared)
unixd_module (shared)
status_module (shared)
autoindex_module (shared)
dir_module (shared)
alias_module (shared)
php5_module (shared)

其中带有shared字样的，表示该模块为动态共享模块；static为静态模块。

动态和静态的区别是静态模块直接和主程序（/usr/local/apache2.4/bin/httpd）绑定在一起，我们是看不到的；而动态的模块都是一个个独立存在的文件，也就是modules目录下的.so文件

6.配置httpd支持php

a.编辑httpd.conf文件（/usr/local/apache2.4/conf/httpd.conf），搜索ServerName，把ServerName www.example.com:80前面的#去掉

b.找到如下内容