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How to configure PostgreSQL to accept all incoming connections

I've got a PostgreSQL data base that I'd like to configure to accept all incoming connections regardless of the source IP address. How can this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4. ...
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EF LINQ include multiple and nested entities

Ok, I have tri-leveled entities with the following hierarchy: Course -> Module -> Chapter 5 Answers ...
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Why can't non-default arguments follow default arguments?

Why does this piece of code throw a SyntaxError? 4 Answers 4 ...
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How to show SQL queries run in the Rails console?

When I run queries (e.g. MyModel.where(...) or record.associated_things ) in the console, how can I see the actual database queries being run so I can gain more understanding of what is happening? ...
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WPF: How to display an image at its original size?

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Rails: create on has_one association

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Validate uniqueness of multiple columns

Is there a rails-way way to validate that an actual record is unique and not just a column? For example, a friendship model / table should not be able to have multiple identical records like: ...
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Difference between database and schema

What's the difference between a Database and a Schema in SQL Server? Both are the containers of tables and data. 5 Answers ...
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Removing a model in rails (reverse of “rails g model Title…”)

How can I completely remove this model? Thanks 5 Answers 5 ...
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How to show git log history for a sub directory of a git repo?

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