Does Ubuntu have default proxy settings? I ask this question because every time I try to install rails through gem install rails I get connection timed out error! This error occurs even I try from live cd! So I am in doubt if Ubuntu has some default proxy settings.

  • Are you sure that isn't the mirror who is dead? What exactly throws a timeout?
    – Braiam
    Commented Mar 10, 2014 at 12:56
  • the connection to rubygems.org but when I removed it from the gem sources and added rubygems.org worked smoothly !! Commented Mar 11, 2014 at 5:40

2 Answers 2


I could solve this problem by adding http://rubygems.org to sources of my gem. Also I removed https://rubygems.org from it.


goto networks -> network proxy -> manual

Enter your proxy and port

Hit apply system wide

  • Yes it does. Even if it is probably wrong, it does try to answer the question. If it is technically wrong, it should be downvoted, not deleted.
    – Olli
    Commented Mar 10, 2014 at 10:29
  • @ArUn I don't ask to set proxy. I ask if there is a default proxy setting in Ubuntu. Anyway thanks a lot for your trial to help me. Commented Mar 10, 2014 at 19:00

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