The InterWorx log files are located in the InterWorx home directory at /home/interworx/var/log.
Below are the most common log files saved at this location:
iworx.log – The most common log file used for InterWorx. Most errors will be in this log file.
cron.log – Related to cron tasks.
access.log – Apache access log for the iworx-web server.
error.log – Apache error log for the iworx-web server.
api.log – Records api interactions.
lastyum.log – Records the yum output from the daily OS update (if enabled).
Also note that important logs can also be found in /var/log.
Below are common log files that may contain system level logging relevant to web hosting:
messages.log – Contains system level errors or hardware failures.
apf_log – InterWorx firewall related logs
maillog – vpopmail mail log
send/current – qmail send log
smtp/current – qmail smtp log
mysqld.log – MySQL log
yum.log – yum package management log