Where is the package sources location - visual-studio

Question

I use VS 2015 .Where in the visual studio project store the setting of Tools>options >Nuget Package Manager >Package Sources's setting. Currently Nuget.org is checked for Package Sources.I want to point this to a different location other than https://www.nuget.org/api/v2/, by editing the file location.
I checked the project file csproj, but did not find it
I need to change this manually in the server to point to the server repository. Working fine in local machine but not in the server.

Answer 1

This is a per-user setting, and is stored in %APPDATA%\NuGet\NuGet.Config. The file looks like:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<packageSources>
<add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
<add key="Abc" value="http://def/nuget/" />
<add key="Package source" value="http://packagesource" />
</packageSources>
<packageRestore>
<add key="enabled" value="True" />
<add key="automatic" value="True" />
</packageRestore>
<bindingRedirects>
<add key="skip" value="False" />
</bindingRedirects>
</configuration>
Simply add another entry into the <packageSources> element. (Mine is obviously updated for the protocol version 3 and so is referencing https://api.nuget.org/v3/index.json rather than https://www.nuget.org/api/v2/).