If you have cPanel/WHM VPS or dedicated server & would like to view all log files, these are the locations
All cpanel related logs are in (mostly similar to apache logs)
/usr/local/cpanel/logs
Apache logs are in
/usr/local/apache/logs
Individual domain logs are in
/usr/local/apache/domlogs
POP/IMAP logins are in
/var/log/maillog
FTP Logins are in
/var/log/messages
SSH Logins are in
/var/log/secure