Configure Apache multiple domain name servers under Ubuntu

　1. Goal:

　Achieve access to different domain names and different directories on this machine. That is: visit a.com to enter the program in the /var/www/a directory, visit b.com to enter the program in the /var/www/b directory.

　2. Problems encountered:

　/etc/apache2 folder directory

mods-available available modules conf-available available configurations sites-available available domain names/virtual directories ports.conf interface files

mods-enabled enabled module conf-enabled enabled configuration sites-enable enabled domain name/virtual directory envvars apache2.conf main configuration

Compared with the configuration file in Windos, Apache's configuration file in Ubuntu is relatively scattered. This is for low coupling. An error when configuring one of the sites will not affect the operation of other sites.

　apache2.conf This is the main configuration file. This file is like the framework of a building, which brings together the configuration files in the external scattered enable directory.

Now that the truth is clear, create a.conf b.conf in sites-available and create a soft link in sites-enable

But accessing all domain names will point to the www root directory. There is no problem when sites-enable has only one configuration file.

　3. Solve the problem

I have been confused for several days to no avail. Finally found the answer in a post. I still don’t fully understand the specific principles, so I’ll record them for future reference.

Just comment out the following two lines in the default configuration file.

ErrorLog ${APACHE_LOG_DIR}/error.log changed to

#ErrorLog ${APACHE_LOG_DIR}/error.log

CustomLog ${APACHE_LOG_DIR}/access.log combined changed to

#CustomLog ${APACHE_LOG_DIR}/access.log combined

Reference:

http://forum.ubuntu.org.cn/viewtopic.php?t=341070