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After a fair amount of trial and error, I have finally discovered a way to back up files on one system over the Internet, to a remote system in a secure, automated way.
Deactivate all inactive users in the last year:
Yes, some distros still use rpm.
Extract files from an RPM:
Included below are some commands that I have found, created or tweaked to help make life easier along the way.
Get into the correct directory:
cd /etc/pki/tls/certsWireshark and tcpdump are extremely powerful network troubleshooting tools.