Description of Apache configuration file in Ubuntu

This semester I learned something about the Web Front-end, including HTML and JS, and some other frameworks or technologies such as JQuery, PHP, and Ajax. I configured the Apache server in Windows a few days ago, in Windows, the apache configuration file is in the conf directory under its directory [httpd. conf]. I also configured the Apache environment in Ubuntu yesterday and found that the configuration file is divided into multiple files [in the/etc/apache2 directory, package

This semester I learned something about the Web Front-end, including HTML and JS, and some other frameworks or technologies such as JQuery, PHP, and Ajax. I configured the Apache server in Windows a few days ago, in Windows, the apache configuration file is in the conf directory under its directory [httpd. conf]. I also configured the Apache environment in Ubuntu yesterday and found that the configuration file is divided into multiple files [in the/etc/apache2 directory, including apache2.conf and conf. d. envvars and httpd. conf, mod-avaliable, mod-enabled, ports. conf, sites-avaliable, and sites-enables ].

Apache2.conf	File, apache's main configuration file, the configuration in it will affect the global
Conf. d	Directory, including the configuration file will also affect the global, other packages if you need to use apache to serve it, it may add files and symbolic links to it (similar to the shortcut in windows)
Envvars	File, which contains apache environment variable settings
Httpd. conf	File, which was previously used as the main configuration file of apache, is named according to the httpd service process. Now you can use it for some user-specific configurations.
Mod-avaliable	Directory, including the configuration of available modules and loading files, httpd in windows. the conf file contains LoadModule ***** _ module modules/mod _***. so statements are used to load additional modules, but not all modules have their configuration files.
Mod-enabled	Directory. The files in the directory point to the symbolic link of the files under the directory named "mod-avaliable. If you want to load the functions of a module, you just need to create a symbolic link to the module configuration file in the mod-avaliable directory. Restart the apache service.
Ports. conf	The command in the file determines which TCP port apache listens.
Sites-avaliable	Directory, which is mainly used to configure the virtual host (if you want to configure the virtual host in httpd. conf in windows, it can be included in Xxoo If there are multiple hosts, you can configure them in several files.
Sites-enables	Directory. The principle is the same as that of "mod-enabled". When enabled, the corresponding configuration files under the sites-avaliable directory are created with a symbolic link in the directory, and then the apache service is restarted.