參考資料

• (https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/ch-web_servers#s1-The_Apache_HTTP_Server)
• (https://httpd.apache.org/docs/2.4/install.html)

步驟

1. 安裝 httpd 套件

    $ sudo yum install httpd -y
    Loaded plugins: fastestmirror
    Determining fastest mirrors
     * base: free.nchc.org.tw
     * extras: free.nchc.org.tw
     * updates: free.nchc.org.tw
    base                                                                                          | 3.6 kB  00:00:00
    extras                                                                                        | 3.4 kB  00:00:00
    updates                                                                                       | 3.4 kB  00:00:00
    (1/4): base/7/x86_64/group_gz                                                                 | 166 kB  00:00:00
    (2/4): extras/7/x86_64/primary_db                                                             | 215 kB  00:00:00
    (3/4): base/7/x86_64/primary_db                                                               | 6.0 MB  00:00:01
    (4/4): updates/7/x86_64/primary_db                                                            | 7.4 MB  00:00:01
    Resolving Dependencies
    --> Running transaction check
    ---> Package httpd.x86_64 0:2.4.6-89.el7.centos.1 will be installed
    --> Processing Dependency: httpd-tools = 2.4.6-89.el7.centos.1 for package: httpd-2.4.6-89.el7.centos.1.x86_64
    --> Processing Dependency: /etc/mime.types for package: httpd-2.4.6-89.el7.centos.1.x86_64
    --> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd-2.4.6-89.el7.centos.1.x86_64
    --> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd-2.4.6-89.el7.centos.1.x86_64
    --> Running transaction check
    ---> Package apr.x86_64 0:1.4.8-3.el7_4.1 will be installed
    ---> Package apr-util.x86_64 0:1.5.2-6.el7 will be installed
    ---> Package httpd-tools.x86_64 0:2.4.6-89.el7.centos.1 will be installed
    ---> Package mailcap.noarch 0:2.1.41-2.el7 will be installed
    --> Finished Dependency Resolution
   
    Dependencies Resolved
   
    =====================================================================================================================
     Package                    Arch                  Version                               Repository              Size
    =====================================================================================================================
    Installing:
     httpd                      x86_64                2.4.6-89.el7.centos.1                 updates                2.7 M
    Installing for dependencies:
     apr                        x86_64                1.4.8-3.el7_4.1                       base                   103 k
     apr-util                   x86_64                1.5.2-6.el7                           base                    92 k
     httpd-tools                x86_64                2.4.6-89.el7.centos.1                 updates                 91 k
     mailcap                    noarch                2.1.41-2.el7                          base                    31 k
   
    Transaction Summary
    =====================================================================================================================
    Install  1 Package (+4 Dependent packages)
   
    Total download size: 3.0 M
    Installed size: 10 M
    Downloading packages:
    (1/5): apr-util-1.5.2-6.el7.x86_64.rpm                                                        |  92 kB  00:00:00
    (2/5): apr-1.4.8-3.el7_4.1.x86_64.rpm                                                         | 103 kB  00:00:00
    (3/5): mailcap-2.1.41-2.el7.noarch.rpm                                                        |  31 kB  00:00:00
    (4/5): httpd-tools-2.4.6-89.el7.centos.1.x86_64.rpm                                           |  91 kB  00:00:00
    (5/5): httpd-2.4.6-89.el7.centos.1.x86_64.rpm                                                 | 2.7 MB  00:00:00
    ---------------------------------------------------------------------------------------------------------------------
    Total                                                                                3.3 MB/s | 3.0 MB  00:00:00
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : apr-1.4.8-3.el7_4.1.x86_64                                                                        1/5
      Installing : apr-util-1.5.2-6.el7.x86_64                                                                       2/5
      Installing : httpd-tools-2.4.6-89.el7.centos.1.x86_64                                                          3/5
      Installing : mailcap-2.1.41-2.el7.noarch                                                                       4/5
      Installing : httpd-2.4.6-89.el7.centos.1.x86_64                                                                5/5
      Verifying  : httpd-2.4.6-89.el7.centos.1.x86_64                                                                1/5
      Verifying  : mailcap-2.1.41-2.el7.noarch                                                                       2/5
      Verifying  : httpd-tools-2.4.6-89.el7.centos.1.x86_64                                                          3/5
      Verifying  : apr-util-1.5.2-6.el7.x86_64                                                                       4/5
      Verifying  : apr-1.4.8-3.el7_4.1.x86_64                                                                        5/5
   
    Installed:
      httpd.x86_64 0:2.4.6-89.el7.centos.1
   
    Dependency Installed:
      apr.x86_64 0:1.4.8-3.el7_4.1      apr-util.x86_64 0:1.5.2-6.el7     httpd-tools.x86_64 0:2.4.6-89.el7.centos.1
      mailcap.noarch 0:2.1.41-2.el7
   
    Complete!
   

2. 啟動 httpd 服務

    $ sudo systemctl start httpd
   

3. 啟用 httpd 服務，讓 httpd 服務每次開機就會自動被帶起來

    $ sudo systemctl enable httpd
    Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
   

4. 檢視 httpd 服務啟動狀態

    $ sudo systemctl status httpd
    ● httpd.service - The Apache HTTP Server
       Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
       Active: active (running) since Wed 2019-09-11 10:36:47 CST; 21s ago
         Docs: man:httpd(8)
               man:apachectl(8)
     Main PID: 1722 (httpd)
       Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
       CGroup: /system.slice/httpd.service
               ├─1722 /usr/sbin/httpd -DFOREGROUND
               ├─1723 /usr/sbin/httpd -DFOREGROUND
               ├─1724 /usr/sbin/httpd -DFOREGROUND
               ├─1725 /usr/sbin/httpd -DFOREGROUND
               ├─1726 /usr/sbin/httpd -DFOREGROUND
               └─1727 /usr/sbin/httpd -DFOREGROUND
   
    Sep 11 10:36:46 centos7-cli.lab.example.com systemd[1]: Starting The Apache HTTP Server...
    Sep 11 10:36:47 centos7-cli.lab.example.com systemd[1]: Started The Apache HTTP Server.
   

5. 開通本機防火牆

    [doraemon@centos7-cli ~]$ sudo firewall-cmd --permanent --add-service=http
    success
    [doraemon@centos7-cli ~]$ sudo firewall-cmd --reload
    success
   

6. 在其他台電腦開啟網頁測試 OK。