Subject Firebird 3.0 - local access works, but remote acess doesn't
Author Roberto Carlos
I am using Firebird server on a Debian 9 stretch on a Virtual Box machine and FlameRobin client on another Windows 7 VM for testing.

There is no firewall activated.
I can access the database locally using isql-fb.

I have installed Firebird 3.0 via Debian oficial packages:
# apt-get install firebird3.0-server

And I have changed SYSDBA password:
# dpkg-reconfigure firebird3.0-server

And I have changed SYSDBA password via isql-fb:
In this example, the “employee” example database is used,
because its alias is always present in a freshly installed Firebird setup:
connect localhost:employee user sysdba password masterkey;

If you do this in isql, it should respond with:
Database: localhost:employee, User: SYSDBA

Now alter the sysdba password:
alter user sysdba set password 'Zis4_viZuna83YoYo';

# cat /etc/debian_version
# firebird -z (via apt-get install firebird3.0-server)
Firebird TCP/IP server version LI-V3.0.1.32609 Firebird 3.0

I have added the following to /etc/firebird/3.0/firebird.conf
DatabaseAccess = Full
RemoteAccess = True
UdfAccess = Full
AuthServer = Legacy_Auth, Srp, Win_Sspi
AuthClient = Legacy_Auth, Srp, Win_Sspi
UserManager = Legacy_UserManager, Srp
Providers = Remote,Engine12,Loopback
WireCrypt = Enabled
WireCompression = True
RemoteServicePort = 3050
ServerMode = Super

I am using Flamerobin 64 bits and Firebird Client 64 bits (fbclient.dll version on the same FlameRobin's folder on another VM with Windows 7 Profissional 64 bits:
About FlameRobin
FlameRobin 0.9.3 (git hash 5ece15b) Unicode (x64)
Database administration tool for Firebird RDBMS

This tool uses IBPP library version
wxWidgets library version 2.8.12
and Boost library version 1.54.0

I can ping and access Samba from Windows VM to Debian Linux VM, but I can't access Firebird 3.0:
Unhandled Error in FlameRobin
*** IBPP::SQLException ***
Context: Database::Connect
Message: isc_attach_database failed

SQL Message : -902
can't format message 13:98 -- message file C:\Program Files\FlameRobin (x64)\firebird.msg not found

Engine Code : 335544721
Engine Message :
Unable to complete network request to host "".
Failed to establish a connection.

What am I missing?