jian xu <jamesxu@xxxxxxxxxxx> writes: > Thanks Tom. you are right, we are using GSS authentication. and psql version is 13.1 > postgresql_13_1/bin/psql --version > psql (PostgreSQL) 13.1 Ah. Then perhaps you want hostgssenc not hostssl in your pg_hba entries. But I'd definitely recommend an update to 13.2, as it fixes a number of GSS bugs besides this one. regards, tom lane