On 22-4-2018 09:05, helebor@... [firebird-support] wrote:

> By default, the V.3 client tries to connect using SRP authentication
> protocol. The V.1.5 server cannot respond to that. You need to set up
> a client-side firebird.conf containing
>
> AuthClient = Legacy_Auth
>
> Take out Srp and Win_sspi.
> Don't try to configure AuthServer at the client side.
> Don't copy the whole firebird.conf to the client, only
> the parameters you want to configure client side.
>
> Or pass this string in the API.

That is not correct and not necessary. For protocol v13, the client will
try **all** authentication plugins, but even if that were not the case,
Firebird 1.5 is protocol v10, and with protocol v10 it will only use
legacy authentication anyway.

> See
> https://www.ibphoenix.com/files/Authentication_FB3.pdf
> Read the whole of it.  There is probably more you have missed,
> such as the need for new user account records in security3.fdb.

--
Mark Rotteveel