olemus
OSi-litsentsiga populaarseim (enam kui pooltel veebisaitidel) veebiserveri tarkvara, eeskätt UNIXipõhistele operatsioonisüsteemidele

ülevaateid
https://www.youtube.com/watch?v=glU-qJb1mD8

https://www.slideshare.net/IvanGeorgeArouje/apache-webserverarchitecture

https://www.slideshare.net/zrstoppe/apache-web-server-6147089

http://www.apache.org/

juhiseid
https://www.slideshare.net/jagat21/apache-http-server-essentials

https://www.slideshare.net/webhostingguy/configuring-the-apache-web-server

https://www.digitalocean.com/community/tutorials/how-to-configure-the-apache-web-server-on-an-ubuntu-or-debian-vps

https://help.ubuntu.com/lts/serverguide/httpd.html

https://sites.duke.edu/workblog/files/2014/12/www.dedoimedo.com-apache-web-server-lm.pdf

turve
https://www.tecmint.com/apache-security-tips/

https://www.monitis.com/blog/top-7-apache-security-best-practices/

https://www.petefreitag.com/item/505.cfm

https://geekflare.com/apache-web-server-hardening-security/

https://www.owasp.org/index.php/SCG_WS_Apache