On 2017-06-23 01:52, Aldo Caruso aldo.car...@argencasas.com [firebird-support] wrote: > Hi, > > I have Firebird 2.5 running since many years under the following > environment > > OS: Ubuntu 14.04 Server > > Firebird Superserver 2.5.2.26540 > > Web server: apache2 2.4.7 > > Today connections from local PHP scripts could not be established. > I tried to attach from Flamerobin. > > The error message was the following > > Context: Database::Connect > Message: isc_attach_database failed > > SQL Message : -923 > Connection not established > > Engine Code : 335544421 > Engine Message : > connection rejected by remote interface > > I had to restart Firebird in order to let clients connect. > > Any clue will be welcome.
I'd start by upgrading Firebird to at least 2.5.3 security update 1 from December 2014 (but preferably 2.5.7 from February 2017), earlier versions have a bug where a malformed packet can crash the server, which might be the problem here. Mark
