apache2/apache2-README-instances.txt

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Dear System Administrator,
SUSE Apache package comes with the possibility to run more instances
of Apache process on one system.
As always,
sytemctl start apache2
activates default instance of the server, which expects sysconfig setting
in /etc/sysconfig/apache2. If this file is not present, or APACHE_HTTPD_CONF
in there is not set, then it requires /etc/apache2/httpd.conf.
Any other instance can be activated via
systemctl start apache2@<instancename>
where <instancename> is ASCII identifier of the instance. For example
systemctl start apache2@myweb.org
This call tries to read /etc/sysconfig/apache2@<instancename> and if this
file is not present or APACHE_HTTPD_CONF is not set there, it requires
/etc/apache2@<instancename>/httpd.conf.
NOTES:
* /etc/sysconfig/apache2@<instancename> can hold any sysconfig variable
/etc/sysconfig/apache2 can, including module loading and MPM setting,
* default instance does not have to run when running other instances
* a2enmod, a2dismod and apachectl operates over default instance if
not specified otherwise via HTTPD_INSTANCE. For example,
export HTTPD_INSTANCE=myweb.org
a2enmod access_compat
a2enmod status
apachectl start
will add access_compat and status modules to APACHE_MODULES
variable of /etc/sysconfig/apache2@myweb.org and then starts
myweb.org instance.
* /usr/sbin/httpd link is created according to setup of default
instance (/etc/sysconfig/apache2:APACHE_MPM)