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[gpadmin@dw-greeplum-1 gpseg-1]$ more pg_hba.conf 格式如下
# local DATABASE USER METHOD [OPTIONS] ####本地登
# host DATABASE USER CIDR-ADDRESS METHOD [OPTIONS] ###host登录 -h的方式
# hostssl DATABASE USER CIDR-ADDRESS METHOD [OPTIONS]
# hostnossl DATABASE USER CIDR-ADDRESS METHOD [OPTIONS]
host replication gpadmin 10.0.3.15/32 trust local all gpadmin ident host all gpadmin 127.0.0.1/28 trust host all gpadmin 192.168.6.119/32 trust host all gpadmin 10.0.3.15/32 trust host all gpadmin ::1/128 trust host all gpadmin fe80::a00:27ff:fe2b:8253/128 trust host all gpadmin fe80::a00:27ff:fe36:96e4/128 trust ####trust信任，不需要输入密码了 local replication gpadmin ident host replication gpadmin samenet trust host all all 0.0.0.0/0 md5 ###md5需要输入密码
