安装postgresql yum install -y postgresql-server 初始化数据库 postgresql-setup initdb 允许外部访问数据库 nano /var/lib/pgsql/data/postgresql.conf 替换listen_addresses = 'localhost'为listen_addresses = '*' 允许通过密码登录 nano /var/lib/pgsql/data/pg_hba.conf 将ident替换为md5 # IPv4 local connections: host all all 127.0.0.1/32 md5 # IPv6 local connections: host all all