Apache

ORDER DENY,ALLOW

In apache2 the directive order is very important to establish what requests can access to sorces and what not.

To better understand this, see the article:

• https://docstore.mik.ua/orelly/linux/apache/ch05_06.htm

And remember that from version 2.4 of apache, you can have troubleshoots in maintan deprecated allow and denied instructions, despite newest Require all granded instruction.

Multi-Thread vs. Multi-Processing

In apache you can use mpm, which is a tool to use PHP via separate processes.

In this context is important to know the advantages/disadvantages of using multi-thread instead multi-processes.

See:

• http://erpbasic.blogspot.it/2012/03/difference-between-multithreading-and.html
• http://techdifferences.com/difference-between-multiprocessing-and-multithreading.html

Optimize Apapche Configurations

• http://www.hostingtalk.it/ottimizzazione-di-apache-dall-analisi-ai-parametri_-c000000ut/

APACHE SSL CERTS SPEEDUP via OCSP

Speedup SSL trust chain via OCSP STAPLING!

• https://www.youtube.com/watch?v=WXNKQ_otO_g, explanation with picture, simple and well done
• https://www.digicert.com/kb/ssl-support/apache-enable-ocsp-stapling-on-server.htm, explanation
• https://www.ssldragon.com/blog/what-is-ocsp-stapling-and-how-to-use-it/, explanation

Code Samples:

/topics/apache/