Apache配置文件
Apache的配置文件默認路徑是“/etc/httpd/conf/httpd.conf”，編輯該文件就可以修改Apache的配置
1、設置網頁主目錄，參數DocumentRoot就是網頁存放的主目錄。打開配置文件httpd.conf，查找DocumentRoot（大約292行）
| [root@localhost ~]# gedit /etc/httpd/conf/httpd.conf
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
DocumentRoot "/var/www/html" //當前默認是在"/var/www/html"目錄下，所有的網頁必須放在這里
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2、設置連接端口，通過參數listen來設置連接的端口，默認80.（大約136行）
| [root@localhost ~]# gedit /etc/httpd/conf/httpd.conf
# Listen: Allows you to bind Apache to specific IP addresses and/or
# ports, in addition to the default. See also the <VirtualHost>
# directive.
#
# Change this to Listen on specific IP addresses as shown below to
# prevent Apache from glomming onto all bound IP addresses (0.0.0.0)
#
#Listen 12.34.56.78:80
Listen 80
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3、設置連接超時，參數timeout，當連接超過一定的空閑時間，就會自動斷開。（大約68行）
| # Timeout: The number of seconds before receives and sends time out.
#
Timeout 60
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4、設置字符集，參數AddDefaultCharset，建議最好設置utf-8，這是通用的。（大約753行）
| # Specify a default charset for all content served; this enables
# interpretation of all content as UTF-8 by default. To use the
# default browser choice (ISO-8859-1), or to allow the META tags
# in HTML content to override this choice, comment out this
# directive:
#
AddDefaultCharset UTF-8
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5、設置服務器名稱，參數ServerName。這是服務器的域名，必須有dns解析才可以訪問。如果你沒有合法的域名，那么只能通過ip地址來訪問
| # ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If this is not set to valid DNS name for your host, server-generated
# redirections will not work. See also the UseCanonicalName directive.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
# You will have to access it by its address anyway, and this will make
# redirections work in a sensible way.
#
#ServerName www.example.com:80
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6、設置keepalive，提高網絡效率，默認是關閉的。（大約76行）
| # KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive Off
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7、設置keepaliverequest，設置為0 的時候沒有限制，不過最好還是用默認值，或者自己根據情況來改變。（大約83行）
| # MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend ou leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100
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