Hi All, I am trying to use GSSAPI (Kerberos auth) on FreeBSD.
After several attempts I was able to build PostgreSQL 16 from FreeBSD ports with GSSAPI support. The steps were: 1. Uninstall Heimdal 2. Install krb5 (MIT Kerberos) 3. Build Pg with GSSAPI support I configured pg_hba.conf to require GSSAPI authentication for one of the users. When trying to connect using “psql -h postgres” (postgres is the name of the host) I get: psql: error: connection to server at “postgres.[domainname]” ([ipaddress]), port 5432 failed: connection to server at “postgres.[domainname]” ([ipaddress]), port 5432 failed: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. Configured Pg to debug log and here are the relevant syslog entries: an 27 13:33:45 postgres postgres[61605]: [36-1] 2024-01-27 13:33:45.779 CET [61605] DEBUG: forked new backend, pid=61626 socket=10 Jan 27 13:33:45 postgres postgres[61605]: [37-1] 2024-01-27 13:33:45.786 CET [61605] DEBUG: forked new backend, pid=61627 socket=10 Jan 27 13:33:45 postgres postgres[61605]: [38-1] 2024-01-27 13:33:45.786 CET [61605] DEBUG: reaping dead processes Jan 27 13:33:45 postgres postgres[61605]: [39-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: server process (PID 61626) was terminated by signal 11: Segmentation fault Jan 27 13:33:45 postgres postgres[61605]: [40-1] 2024-01-27 13:33:45.787 CET [61605] LOG: server process (PID 61626) was terminated by signal 11: Segmentation fault Jan 27 13:33:45 postgres postgres[61605]: [41-1] 2024-01-27 13:33:45.787 CET [61605] LOG: terminating any other active server processes Jan 27 13:33:45 postgres postgres[61605]: [42-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: sending SIGQUIT to process 61611 Jan 27 13:33:45 postgres postgres[61605]: [43-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: sending SIGQUIT to process 61627 Jan 27 13:33:45 postgres postgres[61605]: [44-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: sending SIGQUIT to process 61607 Jan 27 13:33:45 postgres postgres[61605]: [45-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: sending SIGQUIT to process 61606 Jan 27 13:33:45 postgres postgres[61605]: [46-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: sending SIGQUIT to process 61609 Jan 27 13:33:45 postgres postgres[61605]: [47-1] 2024-01-27 13:33:45.787 CET [61605] DEBUG: sending SIGQUIT to process 61610 Jan 27 13:33:45 postgres postgres[61605]: [48-1] 2024-01-27 13:33:45.789 CET [61605] DEBUG: reaping dead processes Jan 27 13:33:45 postgres postgres[61605]: [49-1] 2024-01-27 13:33:45.789 CET [61605] DEBUG: server process (PID 61627) exited with exit code 2 I am not familiar enough with FreeBSD to be able to gather any crash dumps or backtraces, I am afraid. -- Michal