linux下安装了postgresql数据库在win7系统下用pgadmin登录 提示访问数据库被拒绝

在postgresql.conf中修改

listen_addresses = '*'

在pg_hba.conf文件中添加

hostall all 0.0.0.0/0 md5

(md5连接需要密码登录,trust不需要密码)

1、看看服务里的 Postgres 服务的用户名、密码，必须用 postres 用户启动的。

2、鉴于重启后就启动不了，是不是服务设置手动，或者是安装了影子系统

3、会不会是安装的时候，上一次的安装没有卸载干净？

4、手动启动服务试试看，看看系统日志有没有相应内容分。

5、到 c:\program files下的安装目录（假设是windows)看看log 文件夹里的日志

6、进入cmd, netstat -na ，看看开了多少端口，很多病毒会强占许多端口，包括5432端口，如果5432被占用，肯定不行。netstat -navbo 会查看是哪个进程

7、安装的时候，locale 是不是选择了默认一路Next, 卸载，用locale = 'C'试试看!

PostgreSQL数据库手动初始化步骤：

1、创建用户postgres,密码同样是postgres:

net user postgres postgres /add

2、在数据库根目录下建立data目录：

C:\Program Files\PostgreSQL\9.3>md data

3、去掉administrator对data目录的权限：

C:\Program Files\PostgreSQL\9.3>cacls data /e /t /r administrator

处理的目录: C:\Program Files\PostgreSQL\9.3\data

4、将data目录的权限赋给postgres用户：

C:\Program Files\PostgreSQL\9.3>cacls data /e /t /g postgres:C

处理的目录: C:\Program Files\PostgreSQL\9.3\data

5、用postgres用户打开cmd

C:\Program Files\PostgreSQL\9.3>runas /user:postgres cmd.exe

输入 postgres 的密码:

试图将 cmd.exe 作为用户 "SURE-PC\postgres" 启动...

6、进行初始化，初始化用户为postgres,字符集为utf8，locale为C：

C:\Program Files\PostgreSQL\9.3\bin>initdb.exe -D ../data -E utf8 --locale C -U

postgres

The files belonging to this database system will be owned by user "postgres".

This user must also own the server process.

The database cluster will be initialized with locale "C".

The default text search configuration will be set to "english".

Data page checksums are disabled.

fixing permissions on existing directory ../data ... ok

creating subdirectories ... ok

selecting default max_connections ... 100

selecting default shared_buffers ... 128MB

creating configuration files ... ok

creating template1 database in ../data/base/1 ... ok

initializing pg_authid ... ok

initializing dependencies ... ok

creating system views ... ok

loading system objects' descriptions ... ok

creating collations ... not supported on this platform

creating conversions ... ok

creating dictionaries ... ok

setting privileges on built-in objects ... ok

creating information schema ... ok

loading PL/pgSQL server-side language ... ok

vacuuming database template1 ... ok

copying template1 to template0 ... ok

copying template1 to postgres ... ok

syncing data to disk ... ok

WARNING: enabling "trust" authentication for local connections

You can change this by editing pg_hba.conf or using the option -A, or

--auth-local and --auth-host, the next time you run initdb.

Success. You can now start the database server using:

"postgres" -D "../data"

or

"pg_ctl" -D "../data" -l logfile start

C:\Program Files\PostgreSQL\9.3\bin>

7、启动数据库，进入客户端：

C:\Program Files\PostgreSQL\9.3\bin>"pg_ctl" -D "../data" start

server starting

C:\Program Files\PostgreSQL\9.3\bin>LOG: database system was shut down at 2014-

09-18 10:19:54 HKT

LOG: autovacuum launcher started

C:\Program Files\PostgreSQL\9.3\bin>LOG: database system is ready to accept con

nections

C:\Program Files\PostgreSQL\9.3\bin>psql.exe

psql (9.3.5)

Type "help" for help.

postgres=#

8、初始化完成。

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