Apache 基金会的开源项目，是一个高性能、功能强大、安全可靠、灵活的开放源码 Web 服务软件
官方宣称：与 Apache 2.2.x 相比，Apache 2.4.x 提供了很多性能方面的提升，包括支持更大流量、更好地支持云计算、利用更少的内存处理更多的并发等。
除此之外，还包括性能提升、内存利用、异步I/O的支持、动态反向代理设置、与时间驱动的 Web 服务器相当或更好的性能、更强大的处理资源分配能力，更便捷的缓存支持以及可定制的高速服务器和代理等。
其它的功能还包括更简单的错误分析、更灵活的设置项、更强大的验证机制和更完整的文档。
Apache 2.4.x 比许多以速度见长的 Web 服务器更快，例如：Nginx。
应用场景：

  • 运行静态页面和图片
  • 结合 PHP 引擎运行 PHP 程序
  • 结合 Tomcat 运行 JAVA\JSP 程序
  • 做代理、负载平衡

    编译安装

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    yum install -y expat-devel
    wget https://udomain.dl.sourceforge.net/project/expat/expat/2.5.0/expat-2.5.0.tar.gz
    tar -zxvf expat-2.5.0.tar.gz
    cd expat-2.5.0
    ./configure --prefix=/app/service/apache/expat
    make && make install

    wget https://dlcdn.apache.org//apr/apr-1.7.2.tar.gz
    tar -zvxf apr-1.7.2.tar.gz
    cd apr-1.7.2
    ./configure --prefix=/app/service/apache/apr
    make && make install

    wget https://dlcdn.apache.org//apr/apr-util-1.6.3.tar.gz
    tar -zxvf apr-util-1.6.3.tar.gz
    cd apr-util-1.6.3
    ./configure \
    --prefix=/app/service/apache/apr-util \
    --with-apr=/app/service/apache/apr \
    --with-expat=/app/service/apache/expat
    make && make install

    wget https://archive.apache.org/dist/httpd/httpd-2.4.54.tar.gz
    tar -zxvf httpd-2.4.54.tar.gz
    cd httpd-2.4.54
    ./configure \
    --prefix=/app/service/apache/httpd24 \
    --sysconfdir=/app/conf/apache/httpd24 \
    --enable-modules=most \
    --enable-mods-shared=most \
    --enable-mpms-shared=all \
    --enable-deflate \
    --enable-expires \
    --enable-ssl \
    --enable-rewrite \
    --with-apr=/app/service/apache/apr \
    --with-apr-util=/app/service/apache/apr-util \
    --with-mpm=event
    make && make install

    应用配置

    修改配置，文件位置：conf/httpd.conf
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    ServerRoot "/app/service/apache/httpd24"
    Listen 8080

    #各模块说明详解 - https://httpd.apache.org/docs/2.4/mod/
    # LoadModule foo_module modules/mod_foo.so
    LoadModule mpm_event_module modules/mod_mpm_event.so
    #LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
    #LoadModule mpm_worker_module modules/mod_mpm_worker.so
    LoadModule authn_file_module modules/mod_authn_file.so
    #LoadModule authn_dbm_module modules/mod_authn_dbm.so
    #LoadModule authn_anon_module modules/mod_authn_anon.so
    #LoadModule authn_dbd_module modules/mod_authn_dbd.so
    #LoadModule authn_socache_module modules/mod_authn_socache.so
    LoadModule authn_core_module modules/mod_authn_core.so
    LoadModule authz_host_module modules/mod_authz_host.so
    LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
    LoadModule authz_user_module modules/mod_authz_user.so
    #LoadModule authz_dbm_module modules/mod_authz_dbm.so
    #LoadModule authz_owner_module modules/mod_authz_owner.so
    #LoadModule authz_dbd_module modules/mod_authz_dbd.so
    LoadModule authz_core_module modules/mod_authz_core.so
    LoadModule access_compat_module modules/mod_access_compat.so
    LoadModule auth_basic_module modules/mod_auth_basic.so
    #LoadModule auth_form_module modules/mod_auth_form.so
    #LoadModule auth_digest_module modules/mod_auth_digest.so
    #LoadModule allowmethods_module modules/mod_allowmethods.so
    #LoadModule file_cache_module modules/mod_file_cache.so
    #LoadModule cache_module modules/mod_cache.so
    #LoadModule cache_disk_module modules/mod_cache_disk.so
    #LoadModule cache_socache_module modules/mod_cache_socache.so
    #LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
    #LoadModule socache_dbm_module modules/mod_socache_dbm.so
    #LoadModule socache_memcache_module modules/mod_socache_memcache.so
    #LoadModule socache_redis_module modules/mod_socache_redis.so
    #LoadModule watchdog_module modules/mod_watchdog.so
    #LoadModule macro_module modules/mod_macro.so
    #LoadModule dbd_module modules/mod_dbd.so
    #LoadModule dumpio_module modules/mod_dumpio.so
    #LoadModule buffer_module modules/mod_buffer.so
    #LoadModule ratelimit_module modules/mod_ratelimit.so
    LoadModule reqtimeout_module modules/mod_reqtimeout.so
    #LoadModule ext_filter_module modules/mod_ext_filter.so
    #LoadModule request_module modules/mod_request.so
    #LoadModule include_module modules/mod_include.so
    LoadModule filter_module modules/mod_filter.so
    #LoadModule substitute_module modules/mod_substitute.so
    #LoadModule sed_module modules/mod_sed.so
    #LoadModule deflate_module modules/mod_deflate.so
    LoadModule mime_module modules/mod_mime.so
    LoadModule log_config_module modules/mod_log_config.so
    #LoadModule log_debug_module modules/mod_log_debug.so
    #LoadModule logio_module modules/mod_logio.so
    LoadModule env_module modules/mod_env.so
    #LoadModule expires_module modules/mod_expires.so
    LoadModule headers_module modules/mod_headers.so
    #LoadModule unique_id_module modules/mod_unique_id.so
    LoadModule setenvif_module modules/mod_setenvif.so
    LoadModule version_module modules/mod_version.so
    #LoadModule remoteip_module modules/mod_remoteip.so
    LoadModule proxy_module modules/mod_proxy.so
    LoadModule proxy_connect_module modules/mod_proxy_connect.so
    LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
    LoadModule proxy_http_module modules/mod_proxy_http.so
    #LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
    #LoadModule proxy_scgi_module modules/mod_proxy_scgi.so
    #LoadModule proxy_uwsgi_module modules/mod_proxy_uwsgi.so
    #LoadModule proxy_fdpass_module modules/mod_proxy_fdpass.so
    #LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so
    #LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
    #LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
    #LoadModule proxy_express_module modules/mod_proxy_express.so
    #LoadModule proxy_hcheck_module modules/mod_proxy_hcheck.so
    #LoadModule session_module modules/mod_session.so
    #LoadModule session_cookie_module modules/mod_session_cookie.so
    #LoadModule session_dbd_module modules/mod_session_dbd.so
    #LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
    #LoadModule ssl_module modules/mod_ssl.so
    #LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
    #LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
    #LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
    #LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
    LoadModule unixd_module modules/mod_unixd.so
    #LoadModule dav_module modules/mod_dav.so
    LoadModule status_module modules/mod_status.so
    LoadModule autoindex_module modules/mod_autoindex.so
    #LoadModule info_module modules/mod_info.so
    #LoadModule cgid_module modules/mod_cgid.so
    #LoadModule dav_fs_module modules/mod_dav_fs.so
    #LoadModule vhost_alias_module modules/mod_vhost_alias.so
    #LoadModule negotiation_module modules/mod_negotiation.so
    LoadModule dir_module modules/mod_dir.so
    #LoadModule actions_module modules/mod_actions.so
    #LoadModule speling_module modules/mod_speling.so
    #LoadModule userdir_module modules/mod_userdir.so
    LoadModule alias_module modules/mod_alias.so
    #LoadModule rewrite_module modules/mod_rewrite.so

    <IfModule unixd_module>
    User daemon
    Group daemon
    </IfModule>

    ServerAdmin work@yuwei.cc
    ServerName localhost
    ServerAlias https://yuwei.cc

    <Directory />
        AllowOverride none
        Require all denied
    </Directory>

    DocumentRoot "/app/service/apache/httpd24/htdocs"
    <Directory "/app/service/apache/httpd24/htdocs">
        Options Indexes FollowSymLinks
        AllowOverride None
        Require all granted
    </Directory>

    <IfModule dir_module>
        DirectoryIndex index.html
    </IfModule>

    <Files ".ht*">
        Require all denied
    </Files>


    ErrorLog "logs/error_log"
    LogLevel warn

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

        <IfModule logio_module>
          LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
        </IfModule>

        CustomLog "logs/access_log" common
    </IfModule>

    <IfModule alias_module>
        ScriptAlias /cgi-bin/ "/app/service/apache/httpd24/cgi-bin/"
    </IfModule>

    <IfModule cgid_module>
        
    </IfModule>

    <Directory "/app/service/apache/httpd24/cgi-bin">
        AllowOverride None
        Options None
        Require all granted
    </Directory>

    <IfModule headers_module>
        RequestHeader unset Proxy early
    </IfModule>

    <IfModule mime_module>
        TypesConfig /app/conf/apache/httpd24/mime.types
        AddType application/x-compress .Z
        AddType application/x-gzip .gz .tgz
    </IfModule>

    #MIMEMagicFile /app/conf/apache/httpd24/magic
    #ErrorDocument 500 "The server made a boo boo."
    #ErrorDocument 404 /missing.html
    #ErrorDocument 404 "/cgi-bin/missing_handler.pl"
    #ErrorDocument 402 http://www.example.com/subscription_info.html
    # MaxRanges: Maximum number of Ranges in a request before
    # returning the entire resource, or one of the special
    # values 'default', 'none' or 'unlimited'.
    # Default setting is to accept 200 Ranges.
    #MaxRanges unlimited
    #EnableMMAP off
    #EnableSendfile on
    # Server-pool management (MPM specific)
    #Include /app/conf/apache/httpd24/extra/httpd-mpm.conf
    # Multi-language error messages
    #Include /app/conf/apache/httpd24/extra/httpd-multilang-errordoc.conf
    # Fancy directory listings
    #Include /app/conf/apache/httpd24/extra/httpd-autoindex.conf
    # Language settings
    #Include /app/conf/apache/httpd24/extra/httpd-languages.conf
    # User home directories
    #Include /app/conf/apache/httpd24/extra/httpd-userdir.conf
    # Real-time info on requests and configuration
    #Include /app/conf/apache/httpd24/extra/httpd-info.conf
    # Virtual hosts
    #Include /app/conf/apache/httpd24/extra/httpd-vhosts.conf
    # Local access to the Apache HTTP Server Manual
    #Include /app/conf/apache/httpd24/extra/httpd-manual.conf
    # Distributed authoring and versioning (WebDAV)
    #Include /app/conf/apache/httpd24/extra/httpd-dav.conf
    # Various default settings
    #Include /app/conf/apache/httpd24/extra/httpd-default.conf

    <IfModule proxy_html_module>
    Include /app/conf/apache/httpd24/extra/proxy-html.conf
    </IfModule>

    <IfModule ssl_module>
    SSLRandomSeed startup builtin
    SSLRandomSeed connect builtin
    </IfModule>

    <VirtualHost *:8080>
        ServerAdmin work@yuwei.cc
        DocumentRoot "/app/service/apache/httpd24/htdocs"
        ServerName localhost
        ServerAlias https://yuwei.cc
        ErrorLog "logs/error_log"
        CustomLog "logs/access_log" common
        ProxyPreserveHost On
        ProxyPass /api http://127.0.0.1:9090
        ProxyPassReverse /api http://127.0.0.1:9090
    </VirtualHost>
    conf/extra/httpd-vhosts.conf

    基本运维

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    /app/service/apache/httpd24/bin/httpd -v
    #启动服务
    /app/service/apache/httpd24/bin/httpd
    #重启服务
    /app/service/apache/httpd24/bin/httpd -k restart
    #关闭服务
    /app/service/apache/httpd24/bin/httpd -k stop
    #服务进程
    ps -ef | grep httpd