maximum connection to mysql database

[veledrom]

Hi,

How do I change maximum connection to mysql database and maximim user connection to mysql?

Thanks

[mwasif]

You can set these limitation by changing server system variables in MySQL configuration (my.cnf) file
max_connections for maximum connections to MySQL.
max_user_connections for per user connection.

[veledrom]

There will be 4000 user will connect to my MySQL database through PHP web form. Probably 2000 will be concurrently.

Now what do I change in my system or MySQL to prevent connection problems?

Also, what do you suggest me to do to serve such amount of people at a time?