# centos 6.8 安装
# 见官网 ：https://www.postgresql.org/download/linux/redhat/
# 选择对应信息后。
yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-6-x86_64/pgdg-centos96-9.6-3.noarch.rpm
yum install postgresql96
yum install postgresql96-server

# 初始化
service postgresql-9.6 initdb
chkconfig postgresql-9.6 on
service postgresql-9.6 start

# 查看 数据目录
cat /etc/rc.d/init.d/postgresql-9.6 | grep -n PGDATA -n

# 远程可连接
vi /var/lib/pgsql/9.6/data/postgresql.conf 
# 59行 
listen_addresses = '*' 
# 
vi /var/lib/pgsql/9.6/data/pg_hba.conf
# 按照要求配置，笔者修改的是注释82行，增加了一行：83行
    77 # TYPE  DATABASE        USER            ADDRESS                 METHOD
     78 
     79 # "local" is for Unix domain socket connections only
     80 local   all             all                                     peer
     81 # IPv4 local connections:
     82 #host    all             all             127.0.0.1/32            ident
     83 host    all             all             192.168.1.0/24            md5
     84 # IPv6 local connections:
     85 host    all             all             ::1/128                 ident
     86 # Allow replication connections from localhost,by a user with the

su postgres  //切换用户
psql -U postgres // 进入交互式

# 修改密码
alter user postgres with password '1234';

重启后，使用pgAdmin 即可远程连接。