Since I needed a good way to track what users do based on their IP/SSH fingerprint I started looking and found log-user-session to be a very neat tool. I created an RPM for RHEL7 and a DEB for Ubuntu 18.04 Bionic and aside from installing the RPM/DEB you just need to make sure these 2 lines are present in /etc/ssh/sshd_config and you are good to go.
LogLevel VERBOSE
ForceCommand /usr/bin/log-user-session
For fingerprint pairing, just use the date and IP and get the fingerprint out of the secure.log/auth.log.