-bash-4.2$ cd $PGDATA
-bash-4.2$ ls
base pg_commit_ts pg_logical pg_serial pg_subtrans pg_wal postmaster.opts
current_logfiles pg_dynshmem pg_multixact pg_snapshots pg_tblspc pg_xact postmaster.pid
global pg_hba.conf pg_notify pg_stat pg_twophase postgresql.auto.conf
log pg_ident.conf pg_replslot pg_stat_tmp PG_VERSION postgresql.conf
-bash-4.2$ cp postgresql.conf postgresql.conf.bak
-bash-4.2$ vi postgresql.conf
listen_addresses = '0.0.0.0'
-bash-4.2$ cp pg_hba.conf pg_hba.conf.bak
-bash-4.2$ vi pg_hba.conf
host all all 0.0.0.0/0 md5
-bash-4.2$ /usr/pgsql-12/bin/pg_ctl restart
可查看日志:cd $PGDATA/log