MySQL Keeps Generating New Connections

[Pasai Sea]

Hello, I've been dealing with too many MySQL connections problem. My Webmin MySQL Server Active Database Connections have been reporting active connections from MySQL user vmail and vmailadmin

sql> show processlist; shows:

+------+------------+-----------------+-------+---------+------+-------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+------+------------+-----------------+-------+---------+------+-------+------------------+
| 6045 | vmail | localhost:45028 | vmail | Sleep | 6 | | NULL |
| 6078 | vmail | localhost:45156 | vmail | Sleep | 6 | | NULL |
| 7143 | vmail | localhost:49002 | vmail | Sleep | 1309 | | NULL |
| 7280 | vmailadmin | localhost:49462 | vmail | Sleep | 25 | | NULL |
| 7320 | vmail | localhost:49554 | vmail | Sleep | 704 | | NULL |
| 7345 | vmail | localhost:49604 | vmail | Sleep | 703 | | NULL |
| 7393 | vmail | localhost:49850 | vmail | Sleep | 514 | | NULL |
| 7400 | vmail | localhost:49866 | vmail | Sleep | 512 | | NULL |
| 7402 | vmail | localhost:49868 | vmail | Sleep | 511 | | NULL |
| 7416 | vmail | localhost:49898 | vmail | Sleep | 510 | | NULL |
| 7419 | vmail | localhost:49904 | vmail | Sleep | 509 | | NULL |
| 7422 | vmail | localhost:49910 | vmail | Sleep | 509 | | NULL |
| 7446 | vmailadmin | localhost:50034 | vmail | Sleep | 13 | | NULL |
| 7474 | vmail | localhost:50122 | vmail | Sleep | 57 | | NULL |
| 7477 | vmail | localhost:50134 | vmail | Sleep | 25 | | NULL |
| 7478 | vmail | localhost:50136 | vmail | Sleep | 26 | | NULL |
| 7479 | vmail | localhost:50138 | vmail | Sleep | 25 | | NULL |
| 7480 | vmail | localhost:50140 | vmail | Sleep | 25 | | NULL |
| 7481 | vmail | localhost:50142 | vmail | Sleep | 26 | | NULL |
| 7482 | vmail | localhost:50144 | vmail | Sleep | 26 | | NULL |
| 7483 | vmail | localhost:50146 | vmail | Sleep | 26 | | NULL |
| 7484 | vmail | localhost:50148 | vmail | Sleep | 26 | | NULL |
| 7485 | vmail | localhost:50150 | vmail | Sleep | 26 | | NULL |
| 7486 | vmail | localhost:50152 | vmail | Sleep | 26 | | NULL |
| 7487 | vmail | localhost:50154 | vmail | Sleep | 26 | | NULL |
| 7488 | vmail | localhost:50156 | vmail | Sleep | 26 | | NULL |
| 7494 | root | localhost | NULL | Query | 0 | init | show processlist |
+------+------------+-----------------+-------+---------+------+-------+------------------+
27 rows in set (0,00 sec)


I don't understand I'm still new, this is my first time running webmail server before. So, do you think this is normal?

What are your opinion about the Database Connections ID's? It keeps generating and won't stop. Example: 4000, 4001, 4002, 4003, ... this morning it was still about 4000s and now about 7400s. How to stop this?

A source on the internet says I need to figure out which web application is used by spammer/hacker to generate so many sql connections. But I don't have any lead on how to do this. Please I need any guidance.

Thanks in advance