How would I change the config file to turn on logging?
Also in /var/log/messages…which file do I check as there are quite a few?
http://server.ip.address:3689, then go to the config page, and set the options for log level and log file.
As far as /var/log/messages, read /var/log/messages. the .1,.2, etc are all old messages — they get rotated and eventually deleted to keep from running out of disk space.