Much of the information we need will be contained within various log files. Note that logs may be rotated out so file names may be followed by a dash(-) or a dot(.) with a number such as the date.
Some of these logs may depend on your version and log configuration
|All log levels dump here. Usually this is the log you will look at for old call traces
|Messages put out by FreePBX modules
|FreePBX Security events
|Apache Access logs.
|Apache Error logs
|Linux system log
|Kernel level messages
|Package activities processed through yum.