Client: A 64 bit Windows 7 host logged in to a domain; LibreOffice 184.108.40.206; native 64 bit PostgreSQL driver has been installed.
Server: (Generic Debian Linux with) PostgreSQL 9.4beta2
2014-09-11 20:36:10 UTC [26574-1] michael.evans@postgres LOG: 08006: could not receive data from client: Connection reset by peer
2014-09-11 20:36:10 UTC [26574-2] michael.evans@postgres LOCATION: pq_recvbuf, pqcomm.c:869
2014-09-11 20:36:10 UTC [26574-3] michael.evans@postgres FATAL: 28000: GSSAPI authentication failed for user "michael.evans"
2014-09-11 20:36:10 UTC [26574-4] michael.evans@postgres DETAIL: Connection matched pg_hba.conf line 101: "host all all 0.0.0.0/0 gss"
2014-09-11 20:36:10 UTC [26574-5] michael.evans@postgres LOCATION: auth_failed, auth.c:285
Couldn't establish database connection to 'sdbc:postgresql:host=EXAMPLE dbname=postgres'
SSPI continuation error: The specified target is unknown or unreachable (80090303)
When on a different Samaba4 AD member than the postgresql server I kinit to the same domain account and connect using psql GSSAPI authentication is successful.
psql -h v-s4 -U michael.evans -d postgres
Additionally, I have not yet been able to locate an official up to date guide for establishing such a connection. Older versions mention a gsslib connection parameter but that appears to be invalid with this version of LibreOffice/PostgreSQL.
This should probably be altered to a lower priority additional documentation request. I decided to try getting pgAdmin III to work in the same environment and a more helpful remark there allowed me to understand the issue.
When using sspi/gssapi the FQDN of the service must be used, not just a hostname that works in the default search domain(s).
The username, if left blank, usefully infers your domain login name (prior to the @ part).
DBNAME is whatever database you are connecting to; for testing I was using postgres (the built in informational for database database).
Setting to documentation enhancement
Adding self to CC if not already on