Locations of important log files for our website /var/log/messages if any processes are dying or anything like that (will show you if kernel killed a process if the system ran out of memory critical, etc) /var/log/httpd/error_log is the main one to look at – use tail -f /var/log/httpd/error_log to keep it scrolling as it updates /var/log/httpd/access_log if you’re trying to do something but not sure what the server I getting (more relevant for vhost setups etc so you can see if it’s routing the files to the right place etc, but also comes up troubleshooting anything just to make sure its getting the URI request at all) /var/log/mysqld.log -- look for any table crashes/errors, etc