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1.本地登陆postgresql,建库授权，设置密码@H_404_2@
服务器本地登陆postgresql数据库（默认是不需要密码的）@H_404_2@
postgres@localhost ~]$ psql@H_404_2@
Type "help" for help.@H_404_2@
创建角色，并且给角色设置密码:@H_404_2@
postgres=# create user testwjw with password 'Zykj@5&^%996';@H_404_2@
CREATE ROLE@H_404_2@
postgres=# alter user testwjw with password '558996';@H_404_2@
ALTER ROLE@H_404_2@
@H_404_2@
指定字符集创建数据库testdb1，并且授权给testwjw@H_404_2@
postgres=# create database testdb1 with encoding='utf8' owner=testwjw;@H_404_2@
CREATE DATABASE@H_404_2@
授权：@H_404_2@
postgres=# grant all privileges on database testdb1 to testwjw;@H_404_2@
GRANT@H_404_2@
2.修改postgresql.conf文件中的端口和监听主机:@H_404_2@
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@H_404_2@
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：@H_404_2@
[postgres@localhost ~]$ ll /data/postgresql/data/postgresql.conf@H_404_2@
-rw------- 1 postgres postgres 21305 Oct 3 11:18 /data/postgresql/data/postgresql.conf@H_404_2@
@H_404_2@
[postgres@localhost ~]$ egrep "listen_addresses|5432"/data/postgresql/data/postgresql.conf@H_404_2@
listen_addresses = 'localhost'# what IP address(es) to listen on;@H_404_2@
port = 5432# (change requires restart)@H_404_2@
[postgres@localhost ~]$ egrep "listen_addresses|36985" /data/postgresql/data/postgresql.conf@H_404_2@
listen_addresses = '*'# what IP address(es) to listen on;@H_404_2@
port = 36985# (change requires restart)@H_404_2@
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@H_404_2@
[postgres@localhost ~]$ egrep "60.223.153.25|127.0.0.1" /data/postgresql/data/pg_hba.conf@H_404_2@
host all all 60.223.153.25/32 trust@H_404_2@
host all all 127.0.0.1/32 password@H_404_2@
#host replication postgres 127.0.0.1/32 trust@H_404_2@
允许60.223.153.25ip访问服务器postgresql数据库@H_404_2@
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@H_404_2@
[postgres@localhost ~]$ pg_ctl -D /data/postgresql/data -l /data/postgresql/log/postgres.log restart@H_404_2@
waiting for server to shut down....LOG: received fast shutdown request@H_404_2@
LOG: aborting any active transactions@H_404_2@
LOG: autovacuum launcher shutting down@H_404_2@
LOG: shutting down@H_404_2@
LOG: database system is shut down@H_404_2@
done@H_404_2@
server stopped@H_404_2@
server starting@H_404_2@
[postgres@localhost ~]$ netstat -lntup|grep postgres@H_404_2@
(Not all processes could be identified,non-owned process info@H_404_2@
will not be shown,you would have to be root to see it all.)@H_404_2@
tcp 0 0 0.0.0.0:36985 0.0.0.0:* LISTEN 6472/postgres@H_404_2@
[postgres@localhost ~]$ psql@H_404_2@
psql.bin: could not connect to server: No such file or directory@H_404_2@
Is the server running locally and accepting@H_404_2@
connections on Unix domain socket "/tmp/.s.PGsql.5432"?@H_404_2@
[postgres@localhost ~]$ psql -Utestwjw -dpostgres -p36985 -h 127.0.0.1@H_404_2@
Password for user testwjw:@H_404_2@
psql.bin: fe_sendauth: no password supplied@H_404_2@
[postgres@localhost ~]$ psql -Utestwjw -dpostgres -p36985 -h 127.0.0.1@H_404_2@
Password for user testwjw:@H_404_2@
Type "help" for help.@H_404_2@
@H_404_2@
postgres=> \q@H_404_2@
[postgres@localhost ~]$ psql -Utestwjw -dtestdb1 -p36985 -h 127.0.0.1@H_404_2@
Password for user testwjw:@H_404_2@
Type "help" for help.@H_404_2@
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testdb1=> select * from t;@H_404_2@
id | nan | note@H_404_2@
----+-----+-------@H_404_2@
1 | t | TRUE@H_404_2@
2 | f | FALSE@H_404_2@
3 | t | tRue@H_404_2@
4 | f | fAlse@H_404_2@
11 | | null@H_404_2@
11 | | NULL@H_404_2@
7 | t | 't'@H_404_2@
8 | f | 'f'@H_404_2@
9 | t | 'yes'@H_404_2@
10 | f | '0'@H_404_2@
(10 rows)@H_404_2@
testdb1=>@H_404_2@
[postgres@localhost ~]$ psql -Utestwjw -dtestdb1 -p36985@H_404_2@
Type "help" for help.@H_404_2@
@H_404_2@
testdb1=> \q@H_404_2@
[postgres@localhost ~]$ psql -Utestwjw -dtestdb2 -p36985@H_404_2@
Type "help" for help.@H_404_2@
@H_404_2@
testdb2=> \q@H_404_2@
