Why does passenger need to install nginx under opt?

Question

Why does passenger need to install nginx under opt? The nginx installed by the system will be in the /etc/ directory

習慣沉默 · Answer

Where the passenger is installed can be customized. Of course, it can also be installed under etc. The system is installed in etc because this is a unified approach. It can be said to be standard.

Linux has a standard specification that you can take a look at

http://zh.wikipedia.org/zh-cn/Linux%E6%A0%87%E5%87%86%E8%A7%84%E8%8C%83
http://www.ibm.com/developerworks/cn/linux/l-lsb-intr/