Subject Re: [firebird-support] Cannot attach without specifying port number
Author Anderson Farias

>I think you need an entry in your services file. For windows I think it
> is in c:\windows\system32\drivers\etc. You need to add a line for
> gds_db 3050/tcp.

Just as a note, since FB 1.0 this entry on services file is not needed. Both
FB server and client will default to port 3050 when this entry is not
present. As can be seem on page 7 of FB 1.0 release notes

Anderson Farias