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
In you have rather busy VPS, the default MYSQL Maximum No Connection maybe not sufficient. To increase follow the steps below.
1. SSH to your VPS
2. Check the current maximum no connection limit
echo "show variables like 'max_connections';" | mysql
3. Edit my MySQL file. Remember to backup your /etc/my.cnf prior to that.
vi /etc/my.cnf
4. Add or edit connection limit in the MySQL configuration file
max_connections = 250
5. Save MySQL configuration file
6. Restart mySQL
service mysql restart
7. Confirm the new maximum no connection limit
echo "show variables like 'max_connections';" | mysql