Apache on CENTOS

Apache Install

sudo yum install httpd

Apache Customization

To start service:

sudo systemctl start httpd

To ensure httpd starts on power-up:

sudo systemctl enable httpd

Check status:

sudo systemctl status httpd

Modify firewal to allow for incoming HTTP and HTTPS:

sudo firewall-cmd ––permanent ––add-port=80/tcp
sudo firewall-cmd ––permanent ––add-port=443/tcp
sudo firewall-cmd ––reload

Each virtual host has a separate conf file in /etc/httpd/conf.d/. Logs are in /var/www/html in a separate folders.

More: https://phoenixnap.com/kb/install-apache-on-centos-7

https://www.tecmint.com/monitor-apache-web-server-load-and-page-statistics/

After reconfig do not forget:

httpd -t
sudo systemctl restart httpd

Apache status: http://localhost/server-status?refresh=2

https://www.tecmint.com/monitor-apache-web-server-load-and-page-statistics/

Apache performance optimization: http://httpd.apache.org/docs/current/misc/perf-tuning.html

https://serverfault.com/questions/383526/how-do-i-select-which-apache-mpm-to-use

To gracefully restart Apache:

apache2ctl -k graceful