Answer a question

I'm having big troubles connecting to PostgreSQL, installed in WSL2 Ubuntu, from the Windows 10 host.

Here is what I have done so far.

  1. Set password for postgres user.

  2. Set the following in pg_hpa.conf

    local all postgres md5

    host all all 0.0.0.0/0 md5

  3. Set the following in postgresql.conf

    listen_addresses = '*'

  4. Tested successfully that I can connect with psql -U postgres - so password should be set correctly.

When I try to connect using either pgAdmin or psql from the Windows 10 host, I get the following error.

error: could not connect to server: FATAL: password authentication failed for user "postgres"

Anything else I can change in pg_hpa.conf or other PostgreSQL configurations which might help?

I'm thinking that I could have something to do with that WSL2 has its own IP, even tough that connections from the hosts are made appear coming from localhost. The connection seems to be made, but authentication failed for some reason when it is not made from within Ubuntu.

Answers

I later tested with nc -l 5432 and for some reason, port 5432 didn't reach WSL2 on local host, but did on WSL-2 IP. If I use any other free port e.g. 5434 (free both on Windows and WSL-2) it works fine and I can connect to the PostgreSQL service on WSl-2 through localhost on windows.

I didn't change any options since the original posted question - only the port.

Update: It turns out that there indeed was a process from an old install of postgres on Windows which was listening on port 5432. This of cause explains it all. ..:/

# postgresql
Logo
PostgreSQL

PostgreSQL社区为您提供最前沿的新闻资讯和知识内容

更多推荐

PostgreSQL 计数查询效率,物化视图 [重复]

问题:PostgreSQL 计数查询效率,物化视图 [重复] 可能重复: PostgreSQL 计数查询优化 使用 PostgreSQL 9.2,我们试图弄清楚是否有一种方法可以跟踪查询的结果数量,并以有效的方式返回该数字。这个查询应该每秒执行几次(可能几十到几百甚至几千次)。我们现在的查询看起来像这样,但我们想知道这是否效率低下: -- Get # of rows that do not hav

avatar PostgreSQL

多对多中的唯一性

问题:多对多中的唯一性 我无法弄清楚谷歌的哪些术语,所以帮助标记这个问题或只是以相关问题的方式向我指出会有所帮助。 我相信我有一个典型的多对多关系: CREATE TABLE groups ( id integer PRIMARY KEY); CREATE TABLE elements ( id integer PRIMARY KEY); CREATE TABLE groups_elements

avatar PostgreSQL

Django 与 postgresql - manage.py syncdb 返回错误

问题:Django 与 postgresql - manage.py syncdb 返回错误 我从 Django 开始。我设置了一些使用 SQLite 工作的站点,但是在将 DB 引擎更改为 postgresql manage.py syncdb 后返回错误。我已经用谷歌搜索了 2 天,但对我仍然没有任何作用。Postgres 用户 'joe' 具有超级用户权限和本地 'joe ' 数据库存在。

avatar PostgreSQL