[snakes1100]

Originally Posted by elenh

Where and how i put it?: max_connections = 500

You can place it anywhere after this:
[mysqld]
max_connections = 500

Originally Posted by elenh

where i put it?: memory_limit = 16M

That is already in php.ini, just change the value, ie 32M or 64M or 128M etc

Originally Posted by elenh

(How excactly do i that? after the command vi /etc/mysql/my.cnf i get some lines and at the end they say INSERT only and i dont know how i continue..)

Use nano instead of vi if you do not know vi commands, just use your keyboard arrow keys to navigate within the file when editing w/ nano