confusion about installing/using git; how to undo

Posted by dan on Ask Ubuntu See other posts from Ask Ubuntu or by dan
Published on 2011-03-03T07:03:03Z Indexed on 2011/03/03 7:32 UTC
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I'm very new to ubuntu so I'm sure this is a dumb question.

I wanted to install some source code that was on git. Don't really know what that means, I've never used git before, but I figured it was time to learn so I first installed git. Next I tried to clone the git directory of the software I want to install. I got a message saying "the authenticity of IP:IP:IP:IP can't be established". I went ahead and ended up with another message saying warning such and such will be added to known hosts. I went ahead and it said something about hanging up on the connection.

After searching the internet for awhile I realized I didn't need git to install the software but now I have it installed and have added some host to some file or another. I'm concerned I've created some security issues I need to fix.

I know this is stupid but can anyone help me undo what I've done, or better understand what I've done. Did adding a git project open up my system? Beyond that can anyone tell me how git works. Everything I've found assumes I know stuff that I don't yet.

Thanks. Dan

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