I have made a modification to pure-ftpd.

When I try to restart it I get the message.
'Unable to start a standalone server: Address already in use.'

I have tried looking this up on Google and it seems that there may be another server using the port.

ps -A | grep ftp gives me - 27623 ? 00:00:00 pure-ftpd

Being new to Linux I am struggling to understand what is happening.

Can anybody tell me what I need to do to get pure-ftpd to restart without rebooting the machine?