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Can’t resolve rubygems.org (too many redirects)

linux ruby rubygems vagrant

Jason Aller

edited 25 Sep, 2018

Mike R

asked 23 Apr, 2014

For some reason my vagrant VM cannot resolve rubygems.org. It was working fine yesterday, today I made no changes and now it no longer works:

Fresh Ubuntu install

vagrant -v # 1.5.3
vagrant init hashicorp/precise64 # ubuntu
vagrant up
vagrant ssh

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vagrant -v # 1.5.3vagrant init hashicorp/precise64 # ubuntuvagrant upvagrant ssh​

Installing ruby gems (fails)

sudo apt-get update
sudo apt-get install rubygems -y

# here comes the failure...
sudo gem install librarian-puppet

"ERROR:  Could not find a valid gem 'librarian-puppet' (>= 0) in any repository
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
too many redirects (http://www1.dlinksearch.com/?..."

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sudo apt-get updatesudo apt-get install rubygems -y​# here comes the failure...sudo gem install librarian-puppet​"ERROR:  Could not find a valid gem 'librarian-puppet' (>= 0) in any repositoryERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)too many redirects (http://www1.dlinksearch.com/?..."​

Can’t resolve rubygems.org

wget rubygems.org 

"Resolving rubygems.org (rubygems.org)... ::ffff:67.215.65.145, 54.245.255.174
Connecting to rubygems.org (rubygems.org)|::ffff:67.215.65.145|:80... connected.
HTTP request sent, awaiting response... 303 See Other
Location: http://www1.dlinksearch.com/?url=rubygems%2Eorg [following]
--2014-04-23 02:28:15--  http://www1.dlinksearch.com/?url=rubygems%2Eorg
Resolving www1.dlinksearch.com (www1.dlinksearch.com)... ::ffff:67.215.65.145, 
20 redirections exceeded."

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wget rubygems.org ​"Resolving rubygems.org (rubygems.org)... ::ffff:67.215.65.145, 54.245.255.174Connecting to rubygems.org (rubygems.org)|::ffff:67.215.65.145|:80... connected.HTTP request sent, awaiting response... 303 See OtherLocation: http://www1.dlinksearch.com/?url=rubygems%2Eorg [following]--2014-04-23 02:28:15--  http://www1.dlinksearch.com/?url=rubygems%2EorgResolving www1.dlinksearch.com (www1.dlinksearch.com)... ::ffff:67.215.65.145, 20 redirections exceeded."​

Other websites seem fine

wget google.com
Resolving google.com (google.com)... 173.194.126.8, 173.194.126.14, 173.194.126.2, ...
HTTP request sent, awaiting response... 200 OK
2014-04-23 02:36:57 (651 KB/s) - `index.html.2' saved [13872]

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wget google.comResolving google.com (google.com)... 173.194.126.8, 173.194.126.14, 173.194.126.2, ...HTTP request sent, awaiting response... 200 OK2014-04-23 02:36:57 (651 KB/s) - `index.html.2' saved [13872]​

I can resolve by IP address

wget 54.245.255.174 
--2014-04-23 02:44:59--  http://rubygems.org/
Resolving rubygems.org (rubygems.org)... ::ffff:67.215.65.145, 54.245.255.174
HTTP request sent, awaiting response... 200 OK

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wget 54.245.255.174 --2014-04-23 02:44:59--  http://rubygems.org/Resolving rubygems.org (rubygems.org)... ::ffff:67.215.65.145, 54.245.255.174HTTP request sent, awaiting response... 200 OK​

More Info

gem env 
  - RUBYGEMS VERSION: 1.8.15
  - RUBY VERSION: 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]
  ...
  - REMOTE SOURCES:
    - http://rubygems.org/

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gem env   - RUBYGEMS VERSION: 1.8.15  - RUBY VERSION: 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]  ...  - REMOTE SOURCES:    - http://rubygems.org/​

It was working

This was working fine yesterday night!
The VM /etc/hosts seems fine
I can access rubygems.org from my desktop browser without any issues
Already tried destroying and creating a new vm
Tried restarting my computer

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Answer

So from the comments, apparently there is a DNS caching issue, where “::ffff:67.215.65.145” was coming back as a valid address for rubygems. “54.245.255.174” is a valid address, as dig @8.8.8.8 ANY rubygems.org would reveal.

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