I have a web application that I'm using connection pooling with. I
have 10 open connections to a firebird v2 database and during the day
I have no problems with this at all. If I leave the connections open
all night I get an error message where my connection is being activily
refused by the database server. I am attempting to look at possible
causes of this and was wondering the following.

Is there a timeout on a firebird connection if there is no data being
transfered for a long period of time?