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postgresql数据库设置远程登陆账户和密码

2024-09-07 22:12:59
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  本地登陆postgresql,建库授权,设置密码
 
  服务器本地登陆postgresql数据库(默认是不需要密码的)
 
  postgres@localhost ~]$ psql
 
  psql.bin (9.5.9)
 
  Type "help" for help.
 
  创建角色,并且给角色设置密码:
 
  postgres=# create user testwjw with password 'Zykj@5&^%996';
 
  CREATE ROLE
 
  修改数据库用户和密码:
 
  postgres=# alter user testwjw with password '558996';
 
  ALTER ROLE
 
  指定字符集创建数据库testdb1,并且授权给testwjw
 
  postgres=# create database testdb1 with encoding='utf8' owner=testwjw;
 
  CREATE DATABASE
 
  授权:
 
  postgres=# grant all privileges on database testdb1 to testwjw;
 
  GRANT
 
  2.修改postgresql.conf文件中的端口和监听主机:
 
  postsql默认安装后是监听本机127.0.0.1 默认端口是5432,是不能够远程登陆的,所以要修改监听主机地址,同时修改默认的端口为:36985
 
  postgresql数据库的配置文件是:postgresql.conf,所在位置是:postgresql初始化时所指定的data数据目录下:
 
  [postgres@localhost ~]$ ll /data/postgresql/data/postgresql.conf
 
  -rw------- 1 postgres postgres 21305 Oct  3 11:18 /data/postgresql/data/postgresql.conf
 
  [postgres@localhost ~]$ egrep "listen_addresses|5432"/data/postgresql/data/postgresql.conf
 
  修改监听主机为*,端口为:36985
 
  [postgres@localhost ~]$ egrep "listen_addresses|36985" /data/postgresql/data/postgresql.conf
 
  修改配置文件pg_hba.conf ,允许远程ip访问本地数据库,以及设置服务器本地登陆postgresql数据库要求输入密码才可以登陆
 
  [postgres@localhost ~]$ egrep "60.223.153.25|127.0.0.1" /data/postgresql/data/pg_hba.conf
 
  host    all             all             60.223.153.25/32            trust
 
  host    all             all             127.0.0.1/32            password
 
  #host    replication     postgres        127.0.0.1/32            trust
 
  允许  60.223.153.25ip访问服务器postgresql数据库
 
  psql -Utestwjw -dpostgres -p36985 -h 127.0.0.1 这样访问数据库127.0.0.1数据库必须输入密码才可以
 
  3.重启postgresql服务生效:
 
  [postgres@localhost ~]$ pg_ctl -D /data/postgresql/data -l /data/postgresql/log/postgres.log restart
 
  waiting for server to shut down....LOG:  received fast shutdown request
 
  LOG:  aborting any active transactions
 
  LOG:  autovacuum launcher shutting down
 
  LOG:  shutting down
 
  LOG:  database system is shut down
 
   done
 
  server stopped
 
  server starting
 
  [postgres@localhost ~]$ netstat -lntup|grep postgres
 
  (Not all processes could be identified, non-owned process info
 
   will not be shown, you would have to be root to see it all.)
 
  tcp        0      0 0.0.0.0:36985               0.0.0.0:*                   LISTEN      6472/postgres  
 
  4.登陆数据库:
 
  [postgres@localhost ~]$ psql
 
  psql.bin: could not connect to server: No such file or directory
 
  [postgres@localhost ~]$ psql -Utestwjw -dpostgres -p36985 -h 127.0.0.1
 
  Password for user testwjw:
 
  psql.bin: fe_sendauth: no password supplied
 
  [postgres@localhost ~]$ psql -Utestwjw -dpostgres -p36985 -h 127.0.0.1
 
  Password for user testwjw:
 
  psql.bin (9.5.9)
 
  Type "help" for help.
 
  postgres=> /q
 
  [postgres@localhost ~]$ psql -Utestwjw -dtestdb1 -p36985 -h 127.0.0.1
 
  Password for user testwjw:
 
  psql.bin (9.5.9)
 
  Type "help" for help.
 
  testdb1=> select * from t;
 
   id | nan | note  
 
  ----+-----+-------
 
    1 | t   | TRUE
 
    2 | f   | FALSE
 
    3 | t   | tRue
 
    4 | f   | fAlse
 
   11 |     | null
 
   11 |     | NULL
 
    7 | t   | 't'
 
    8 | f   | 'f'
 
    9 | t   | 'yes'
 
   10 | f   | '0'
 
  (10 rows)
 
  testdb1=>
 
  [postgres@localhost ~]$ psql -Utestwjw -dtestdb1 -p36985
 
  psql.bin (9.5.9)
 
  Type "help" for help.
 
  testdb1=> /q
 
  [postgres@localhost ~]$ psql -Utestwjw -dtestdb2 -p36985
 
  psql.bin (9.5.9)
 
  Type "help" for help.
 
  testdb2=> /q.

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