源碼安裝apache步驟?
1.下載源碼?
wget?http://mirrors.hust.edu.cn/apache//apr/apr-util-1.6.1.tar.gzwget?http://mirrors.tuna.tsinghua.edu.cn/apache//apr/apr-1.6.5.tar.gzwget?http://mirrors.shu.edu.cn/apache//httpd/httpd-2.4.35.tar.gz注：Apr是Apache的項目，稱為Apache Protable runtime，創(chuàng)建或維護軟件庫，為底層平臺特定的實現(xiàn)提供可預(yù)測且一致的接口。目標是提供一個API。項目地址：https://apr.apache.org/?
????其中，apr.tar.gz是庫，apr-util.tar.gz是工具組件?

2.解壓縮到/usr/local/src下?

tar?-zxvf?apr-1.6.5.tar.gz?-C?/usr/local/apr???????./configure?--prefix=/usr/local/apr然后make&&make?installtar?-zxvf?apr-util-1.6.1.tar.gz?-C?/usr/local/apr-util/???./configure?--with-apr=/usr/local/apr?--prefix=/usr/local/apr-util?然后make&&make?installtar?-zxvf?httpd-2.4.35.tar.gz?-C?/usr/local/src3.用configure產(chǎn)生makefile文件?
./configure?--prefix=/usr/local/httpd/?--sysconfdir=/etc/httpd/?--with-include-apr?--disable-userdir?--enable-headers?--with-mpm=worker?--enable-modules=most?--enable-so?--enable-deflate?--enable-defate=shared?--enable-expires-shared?--enable-rewrite=shared?--enable-static-support?--with-apr=/usr/local/apr/?--with-apr-util=/usr/local/apr-util/bin?--with-ssl由于我安裝的linux是最小化安裝在編譯時多次報錯，因為很多依賴庫未安裝根據(jù)報錯內(nèi)容操作即可；?
yum?install?pcre-devel-7.8-6.el6.x86_64.rpm?-yyum?install?zlib-devel-1.2.3-29.el6.x86_64.rpm?-y4.編譯、編譯安裝?
?make?&&?make?install5.制作啟動腳本和自啟動?

[root@www1?~]#cp?/usr/local/httpd/bin/apachectl?/etc/init.d/httpd???#拷貝apache的啟動腳本到/etc/init.d下[root@www1?~]#vim?/etc/init.d/httpd#!/bin/sh#?chkconfig:?345?61?61????#啟動等級、啟動時啟動的順序、關(guān)機時關(guān)閉的順序[root@www1?~]#chkconfig?--add?httpd[root@www1?~]#chkconfig?--level?2345?httpd?on6.修改環(huán)境變量?

[root@www1?~]#cat?>>/etc/profile?<<endexport?PATH=$PATH:/usr/local/httpd/bin/end[root@www1?~]#source?/etc/profile7.啟動apache，當然啟動前需要指定啟動程序的用戶?

[root@www1?~]#?groupadd?www[root@www1?~]#?useradd?-g?www?-s?/bin/false[root@www1?~]#?vim?/etc/httpd/httpd.conf?????#需要更改httpd.conf的設(shè)置User?apacheGroup?apacheDocumentRoot?"/data"<Directory?"/data">[root@www1?~]#?/etc/init.d/httpd?start[root@www1?~]#?netstat?-antup?|?grep?80??#查看端口是否啟動8.在.configure中--with-mpm=worker是指定apache的工作模式，有3種工作模式：1.prefork默認?2.worker? 3.event(httpd2.4默認使用)?
需要在httpd.conf中打開Include /etc/httpd/extra/httpd-mpm.conf進行調(diào)優(yōu)。?
#?Server-pool?management?(MPM?specific)Include?/etc/httpd/extra/httpd-mpm.confvim /etc/httpd/extra/httpd-mpm.conf?
<IfModule?mpm_worker_module>????StartServers?????????????3????MinSpareThreads?????????75????MaxSpareThreads????????250????ThreadsPerChild?????????25????MaxRequestWorkers??????400????MaxConnectionsPerChild???0</IfModule>http2.4新特性：?
1.運行時可加載MPM，現(xiàn)在可以在編譯時可以將多個MPM構(gòu)建成可加載模塊，可以在運行時通過LoadModule指令配置所選的MPM?

????enable-mpms-shared=all? ?可設(shè)置支持所有mpm，在配置文件中動態(tài)修改。--with-mpm=MPM??可設(shè)置默認使用的MPM類型?

2.異步讀寫?
3.可在模塊和目錄上指定日志級別?
4.對每請求進行配置?

5.增強性的表達式分析器?

6.毫秒級的keepalive timeout?

7.基于域名的虛擬主機不需要namevirtualhost指令?

8.比http2.2更少的內(nèi)存?
9.支持在配置文件中使用自定義變量?

http2.4新增模塊：https://httpd.apache.org/docs/trunk/new_features_2_4.html

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