Apache2 インストール

[root@centos ~]# yum -y install httpd

[root@centos ~]# vi /etc/httpd/conf/httpd.conf
ServerAdmin root@localhost
↓
ServerAdmin postmaster@server-manual.com ←変更(管理者のメールアドレスを記入)

#ServerName www.example.com:80
↓
ServerName server-manual.com:80 ←コメント解除&変更(サーバー名を記入)

<Directory "/var/www/html">
    #
    # Possible values for the Options directive are "None", "All",
    # or any combination of:
    #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
    #
    # Note that "MultiViews" must be named *explicitly* --- "Options All"
    # doesn't give it to you.
    #
    # The Options directive is both complicated and important.  Please see
    # http://httpd.apache.org/docs/2.4/mod/core.html#options
    # for more information.
    #
    Options Indexes FollowSymLinks
    ↓
    Options Includes ExecCGI FollowSymLinks ←変更(CGI,SSIを許可。ファイル一覧表示禁止)

    #
    # AllowOverride controls what directives may be placed in .htaccess files.
    # It can be "All", "None", or any combination of the keywords:
    #   Options FileInfo AuthConfig Limit
    #
    AllowOverride None
    ↓
    AllowOverride All ←変更(.htaccessを許可)

    #
    # Controls who can get stuff from this server.
    #
    Require all granted
</Directory>

<IfModule dir_module>
    DirectoryIndex index.html
    ↓
    DirectoryIndex index.html index.htm index.cgi ←変更(index.htm index.cgiを許可)
</IfModule>

ErrorLog logs/error_log
↓
ErrorLog /var/log/httpd/error_log ←変更(エラーログ)

<IfModule log_config_module>
    CustomLog logs/access_log combined
    ↓
    SetEnvIf Request_URI "default\.ida" nolog
    SetEnvIf Request_URI "cmd\.exe" nolog
    SetEnvIf Request_URI "root\.exe" nolog
    SetEnvIf Request_URI "Admin\.dll" nolog
    SetEnvIf Request_URI "NULL\.IDA" nolog
    SetEnvIf Request_URI "\.(gif)|(jpg)|(png)|(ico)|(css)$" nolog
    CustomLog /var/log/httpd/access_log combined env=!nolog ←変更(アクセスログ)
</IfModule>

<IfModule mime_module>
    #AddHandler cgi-script .cgi
    ↓
    AddHandler cgi-script .cgi .pl ←コメント解除&変更(.cgiと.plを許可)
</IfModule>

AddDefaultCharset UTF-8
↓
#AddDefaultCharset UTF-8 ←コメントアウト(デフォルトの文字コードを指定しない)

[root@centos ~]# vi /etc/httpd/conf.d/deflate.conf
↓下記を記入
<IfModule mod_deflate.c>
 
# Restrict compression to these MIME types
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/css
 
# Level of compression (Highest 9 - Lowest 1)
DeflateCompressionLevel 9
 
# Netscape 4.x has some problems.
BrowserMatch ^Mozilla/4 gzip-only-text/html
 
# Netscape 4.06-4.08 have some more problems
BrowserMatch ^Mozilla/4\.0[678] no-gzip
 
# MSIE masquerades as Netscape, but it is fine
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html
 
</IfModule>

[root@centos ~]# mv /etc/httpd/conf.d/welcome.conf /etc/httpd/conf.d/welcome.conf.org

[root@centos ~]# echo '<h1>It works!</h1>' > /var/www/html/index.html

[root@centos ~]# chown -R user_name /var/www/html

[root@centos ~]# ln -s /usr/bin/perl /usr/local/bin/perl

[root@centos ~]# systemctl start httpd
[root@centos ~]# systemctl enable httpd
[root@centos ~]# systemctl is-enabled httpd
enabled