相关疑难解决方法(0)

我安装了PostgreSQL 8.4,Postgres客户端和Pgadmin 3.对于控制台客户端和Pgadmin用户"postgres"的身份验证失败.我输入的用户为"postgres",密码为"postgres",因为之前有效.但现在身份验证失败了.我之前做过几次没有这个问题.我该怎么办？会发生什么？

psql -U postgres -h localhost -W
Password for user postgres: 
psql: FATAL:  password authentication failed for user "postgres"
FATAL:  password authentication failed for user "postgres"

我在我的Ubuntu Karmic盒子上安装了PostgreSQL和pgAdminIII.

我能够成功使用pgAdminIII(即连接/登录),但是当我尝试使用命令行上的相同用户名/ pwd登录服务器时(使用psql),我收到错误:

psql: FATAL:  Ident authentication failed for user "postgres"

现在有人如何解决这个问题？

我在Ubuntu 11.10和RubyMine上运行我的开发

这是我对database.yml的开发设置:RubyMine为我创建的

development:
  adapter: postgresql
  encoding: unicode
  database: mydb_development
  pool: 5
  username: myuser
  password:

当我尝试运行应用程序时,我在下面收到此错误,似乎我还没有创建"项目"用户,但是,我如何创建用户并在postgres中为其授予数据库？如果这是问题,那么,在Ubuntu中为此任务使用的推荐工具是什么？如果这不是问题,那么,请指教.

Exiting
/home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1194:in `initialize': FATAL:  Peer authentication failed for user "project" (PG::Error)
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1194:in `new'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/postgresql_adapter.rb:1194:in `connect'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/postgresql_adapter.rb:329:in `initialize'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `new'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in `postgresql_connection'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:303:in `new_connection'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:313:in `checkout_new_connection'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:237:in `block (2 levels) in checkout'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:232:in `loop'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:232:in `block in checkout'
    from /home/sam/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:229:in `checkout'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:95:in `connection'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:398:in `retrieve_connection'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:168:in `retrieve_connection'
    from /home/sam/.rvm/gems/ruby-1.9.3-p0@project/gems/activerecord-3.2.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:142:in …

我最近安装了 Postgresql 11，在安装过程中，没有步骤为 Postgres 输入密码和用户名。现在在 pgAdmin 4 中，我想将数据库连接到服务器，它要求我输入密码，而我一开始没有输入密码。任何人都知道发生了什么。谢谢！

我是Postgres和Heroku的新手.我试图从Heroku中提取数据库,但我遗漏了一些简单的东西.我做了:

heroku pg:pull HEROKU_POSTGRESQL_IVORY_URL localdb

我收到了错误:

createdb: database creation failed: ERROR:  permission denied to create database

然后我尝试了同样的"sudo".我得到了:

createdb: could not connect to database template1: FATAL:  role "root" does not exist

所以,我必须缺少一些我找不到的简单命令.我在Linux上,我安装了Postgres并正在工作.

如果我说,Postgres不接受连接,-h localhost但如果我说,它可以工作-h 127.0.0.1

[root@5d9ca0effd7f opensips]# psql -U postgres -h localhost -W
Password for user postgres:
psql: FATAL:  Ident authentication failed for user "postgres"
[root@5d9ca0effd7f opensips]# psql -U postgres -h 127.0.0.1 -W
Password for user postgres:
psql (8.4.20)
Type "help" for help.

postgres=#

我的 /var/lib/pgsql/data/pg_hba.conf

# TYPE  DATABASE    USER        CIDR-ADDRESS          METHOD

# "local" is for Unix domain socket connections only
local   all         all                              trust
local   all         all                              ident
# IPv4 local connections:
host    all         all         127.0.0.1/32          trust
host …

您如何配置 PostgreSQL 以允许默认的 postgres 用户在没有来自 localhost 的密码的情况下登录？

有几个类似的问题，例如this和this，但没有一个修改建议pg_hba.conf对我有用。但是，根据我对pg_hba.conf规则的理解，我应该能够使用peer或trust选项来完成此操作。

我正在尝试运行如下命令：

sudo psql --user=postgres --no-password --command="blah;" -h 127.0.0.1

如果我在我的pg_hba.conf：

local   all             postgres                                trust

我的命令失败并出现错误：

psql: FATAL:  no pg_hba.conf entry for host "127.0.0.1", user "postgres", database "postgres", SSL on
FATAL:  no pg_hba.conf entry for host "127.0.0.1", user "postgres", database "postgres", SSL off

如果我试过这条线：

local   all             postgres                                peer

我的命令失败并出现相同的错误。

我该如何解决？

我在Ruby On Rails中有一个带有postgresql数据库的简单网页,但是当我运行服务器时我有这个错误,我不知道我这样做.我使用postgresql,因为heroku需要aplication在postgresql中.

我在ubuntu 13.10工作

错误是:

PG :: ConnectionBad无法连接到服务器:没有这样的文件或目录服务器是否在本地运行并接受Unix域套接字"/var/run/postgresql/.s.PGSQL.5432"上的连接？

我需要帮助

谢谢

我目前正在为一个学校项目创建一个 API，一切正常。我的设置是：Node v10、Postgres、Koa 等等...

我目前有这个：

CREATE ROLE sa WITH LOGIN PASSWORD 'some-password.';
CREATE DATABASE master WITH OWNER sa;
\c master;

当 init 脚本在 docker 机器中运行时，我得到的输出是这样的：

CREATE ROLE
CREATE DATABASE
You are now connected to database "master" as user "postgres".

所以我确实将文件更改为这样的：

CREATE ROLE sa WITH LOGIN PASSWORD 'some-password.';
CREATE DATABASE master WITH OWNER sa;
CONNECT TO master AS main USER sa;

我收到一个语法错误：

STATEMENT:  CONNECT TO master AS sa USER sa;
psql:/docker-entrypoint-initdb.d/init.sql:4: ERROR:  syntax error at or near "CONNECT"

我在文档中找不到任何地方（或者看起来不太好）如何从 .sql 文件连接到具有特定用户的数据库。 …

如何从管理员访问 postgres 数据库？

我已经更改了用户的密码postgres：

$ sudo -u postgres psql
$ postgres=# alter user postgres password 'secret';

结果：

ALTER ROLE

但是我仍然在管理员上收到此错误：

Unable to connect to PostgreSQL server: FATAL: Peer authentication failed for user "postgres"

任何想法为什么？

我有这两个用户：

postgres=# \du
                                   List of roles
 Role name |                         Attributes                         | Member of 
-----------+------------------------------------------------------------+-----------
 postgres  | Superuser, Create role, Create DB, Replication, Bypass RLS | {}
 root      | Superuser, Create role, Create DB                          | {}

但是root当我使用以下命令创建用户时，我没有为用户设置密码：

sudo -u postgres createuser …

我做了什么:

sudo -u postgres psql
CREATE ROLE shop CREATEDB LOGIN PASSWORD 'kurt1245';

然后我从GitHub克隆了一个存储库(一个使用pg的rails应用程序)bundle install,编辑database.yml来编写我的密码,现在在rake db:create(也setup和migrate)之后不起作用.

database.yml:

development: adapter: postgresql encoding: unicode database: shop_development pool: 5 username: shop password: kurt1245 test: adapter: postgresql encoding: unicode database: shop_test pool: 5 username: shop password: kurt1245