Below are few logs path in cPanel VPS:
For Exim Logs:
/var/log/exim_mainlog
For Apache Logs:
/usr/local/apache/logs/error_log
/usr/local/apache/logs/access_log
/usr/local/apache/domlogs/sitename.com (specific site name)
For FTP Logs:
/var/log/messages
For cPanel logs:
/usr/local/cpanel/logs/access_log
Thanks!
