I am really sorry, if there is already such thread. I checked the forum, but did not find one. I need to install google page speed and other modules for Nginx, the server is already running ISPconfig3 (latest version for production - 18.104.22.168p9), there are few websites on the server (it is used in production). In order to do it I should recompile Nginx. The thing is, how should I proceed, is it safe just to delete/purge the currently installed Nginx, recompile and re-install, or how should I proceed? Can you suggest me something ? Is there any tutorial I can follow?