/var/log/syslog
/var/log/mail.log
/var/log/insert_application_name_here/*
etc
etc
/var/log is a good place to start. For some applications check /opt/application_name or see the applications help documentation.
/var/log/syslog
/var/log/mail.log
/var/log/insert_application_name_here/*
etc
etc
/var/log is a good place to start. For some applications check /opt/application_name or see the applications help documentation.