I'm writing these steps primarily for myself as a reference.  However, if someone else finds them useful to great. Adding XMPP framework to your server.  Initially I was going to add Prosody, however as I'm working off an Apache server with Centos 6.10 this quickly proved to a goal that was out of reach.  Instead, I pivoted and redirected to Erlang.   Is your server hardware running Linux, BSD, OS X, or Windows? Can you use Java or Python or another language if the server...

Whilst updating nodejs and npm on a Centos 6 or 7 server running Apache, I hit a few walls and as a matter of process found some commands that are handy to run before doing a deep dive in Google.   Cleaning the cache sudo yum clean all rm -rf /var/cache/yum/* To make the cache sudo yum clean all; sudo yum makecacheIf you want to run several commands use semi-colon as noted above.   Updating When running an update command run sudo yum -y...