httpd安装详解

安装httpd

yum -y install httpd

httpd基本配置和应用

主配置文件：/etc/httpd/conf/httpd.conf

分段配置文件：/etc/httpd/conf.d/*.conf

服务脚本：/etc/rc.d/init.d/httpd

脚本的配置文件：/etc/sysconfig/httpd

模块文件目录：/etc/httpd/modules --> /usr/lib64/modules

主程序文件：/usr/sbin/httpd (prefork)

/usr/sbin/httpd.worker (worker)

/usr/sbin/httpd.event (event)

日志文件目录：/var/log/httpd

Access_log:访问日志文件

Error_log:错误日志

站点文档目录：/var/www/html

rpm -ql httpd

/etc/httpd                               #httpd的工作目录
/etc/httpd/conf                          #主配置文件文件目录
/etc/httpd/conf.d
/etc/httpd/conf.d/README
/etc/httpd/conf.d/autoindex.conf
/etc/httpd/conf.d/userdir.conf
/etc/httpd/conf.d/welcome.conf
/etc/httpd/conf.modules.d
/etc/httpd/conf.modules.d/00-base.conf
/etc/httpd/conf.modules.d/00-dav.conf
/etc/httpd/conf.modules.d/00-lua.conf
/etc/httpd/conf.modules.d/00-mpm.conf
/etc/httpd/conf.modules.d/00-proxy.conf
/etc/httpd/conf.modules.d/00-systemd.conf
/etc/httpd/conf.modules.d/01-cgi.conf
/etc/httpd/conf/httpd.conf                   #主配置文件
/etc/httpd/conf/magic
/etc/httpd/logs
/etc/httpd/modules
/etc/httpd/run                              #httpd运行时的pid文件
/etc/logrotate.d/httpd
/etc/sysconfig/htcacheclean
/etc/sysconfig/httpd
/usr/sbin/apachectl
/usr/sbin/fcgistarter
/usr/sbin/htcacheclean
/usr/sbin/httpd
/usr/sbin/rotatelogs
/usr/sbin/suexec
/var/cache/httpd
/var/cache/httpd/proxy
/var/lib/dav
/var/log/httpd       #日志文件目录
/var/www
/var/www/cgi-bin     #CGI能够执行的动态脚本
/var/www/html        #文档根目录，站点页面文件存放目录

启动httpd

service httpd start

ss -tunlp|grep httpd  #默认监听在80端口

tcp    LISTEN     0      128       *:80                    *:*                   users:
(("httpd",pid=17665,fd=3),("httpd",pid=17664,fd=3),("httpd",pid=17663,fd=3),
("httpd",pid=17654,fd=3),("httpd",pid=17653,fd=3),("httpd",pid=17652,fd=3),
("httpd",pid=17651,fd=3),("httpd",pid=17650,fd=3),("httpd",pid=17649,fd=3))

ps aux|grep httpd

root      17649  0.2  0.1 224084  5052 ?        Ss   10:38   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17650  0.0  0.0 226304  3832 ?        S    10:38   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17651  0.0  0.0 226168  3092 ?        S    10:38   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17652  0.0  0.0 226168  3092 ?        S    10:38   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17653  0.0  0.0 226304  3836 ?        S    10:38   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17654  0.0  0.0 226168  3092 ?        S    10:38   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17663  0.0  0.0 226168  3092 ?        S    10:39   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17664  0.0  0.0 226168  3092 ?        S    10:39   0:00 /usr/sbin/httpd -DFOREGROUND
apache    17665  0.0  0.0 226168  3092 ?        S    10:39   0:00 /usr/sbin/httpd -DFOREGROUND
root      17676  0.0  0.0 112812   972 pts/1    R+   10:39   0:00 grep --color=auto httpd

我们看到一共启动了9个httpd进程，一个root用户启动httpd进程是主进程（不直接响应用户请求），apache用户启动的8个httpd进程是子进程（也叫工作进程，启动多少个工作进程可以在配置文件中设置）

浏览器访问ip即可看到默认站点主页

修改配置文件，重载：

service httpd reload

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