空的，不可编辑的pg_hba.conf文件 [英] Empty, uneditable pg_hba.conf file

问题描述

我正在尝试通过本教程将Sinatra应用程序连接到PostgreSQL数据库:

I am trying to connect my Sinatra app to PostgreSQL database with this tutorial: http://samuelstern.wordpress.com/2012/11/28/making-a-simple-database-driven-website-with-sinatra-and-heroku/. Everything goes fine until I try to execute:

rake:db migrate

然后我收到此错误:

rake aborted!
PG::ConnectionBad: fe_sendauth: no password supplied

似乎我应该在pg_hba.conf文件中更改权限，但是，打开它，我什么也看不到.而且，如果我尝试在其中写入内容，它会显示为"只读".

It seems like I should change my permissions in pg_hba.conf file, but, opening it, I see nothing. And, if I try to write something into it, it says it's "readonly".

我是消除错误以及下一步去哪里的正确方法吗?

Am I on the right way of getting rid of the error and where to go next?

编辑:实际上，如果我尝试从另一个文本编辑器中打开它，则表明我没有权限.

edit: actually, if I try to open it from another text editor, it says I have no permission to.

推荐答案

所以 pg_hba.conf 是空的，因为我试图用SublimeText打开它，而sublime并没有告诉我我不是允许读取它，它只是显示了一个空文件.
要编辑 pg_hba.conf ，我需要通过终端

So pg_hba.conf was empty because I was trying to open it with SublimeText and sublime didn't tell me that I was not permitted to read it, it just showed me an empty file.
And to edit pg_hba.conf I needed to open it through terminal

/etc/postgresql/9.3/main$ sudo subl pg_hba.conf

使用sudo.

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