Temporary solution for connection errors with rubygems

Posted Over 1 year ago. Visible to the public.

The problem

If you're experiencing that your bundle install command fails with an error message like this, rubygems.org might have issues with their ipv6 connectivity:

$ bundle install
Fetching source index from https://rubygems.org/

Retrying fetcher due to error (2/4): Bundler::HTTPError Could not fetch specs from https://rubygems.org/ due to underlying error <timed out (https://rubygems.org/specs.4.8.gz)>

The (a little bit dirty) possible solution

If that's actually the case, then you can try to deprioritize the ipv6 connection to the rubygems server, as described here Show archive.org snapshot .

To do so, simply add "precedence 2a04:4e42::0/32 5" to the bottom of your /etc/gai.conf file, and retry bundle install. Maybe the command will succeed now.

Warning

Don't forget to remove the line from the /etc/gai.conf file as soon as you don't need it anymore, so you don't have weird config laying around!

Jakob Scholz
Say thanks
Last edit
Over 1 year ago
Jakob Scholz
License
Source code in this card is licensed under the MIT License.

Related cards:

Remove resource fork files from a FAT volume on MacOS

Be careful!
The following solution will delete files on a volume. If you don't know exactly what you're doing, you can run into big trouble with your computer.

I play mp3 files on my car stereo that are stored on a SD-C...

Good real world example for form models / presenters in Rails

We have often felt the pain where our models need to serve too many masters. E.g. we are adding a lot of logic and callbacks for a particular form screen, but then the model becomes a pain in tests, where all those callbacks just get in the way. O...

How to not die with ActionView::MissingTemplate when clients request weird formats

When HTTP clients make an request they can define which response formats they can process. They do it by adding a header to the HTTP request like this:

Accept: application/json

This means the client will only understand JSON respon...

Vortrag: Formulare mit SimpleForm

  • Wir bauen fast ausschließlich Anwendungen mit UI.
    • Alle dieser Anwendungen haben irgendwo ein Formular.
    • Viele Anwendungen haben deutlich mehr als ein Formular.
  • Formulare mit Rails zu bauen funktioniert grundsätzlich gut. Aber:
    • Defau...

Always show all form errors during development

You've been there: A form cannot be submitted, but you don't see a validation error because the field at fault has no corresponding input field on the form. Because this is usually a bug, you insert debug information listing all errors into the fo...

Simple Form: Rendering errors without an appropriate attribute

Usually you add errors to :base in ActiveRecord, in case no appropriate attribute could be used to add the error.

Simple Form...

How to create Excel sheets with spreadsheet gem and use number formats for cells like money or date

The following snippet demonstrates how you could create excel files (with spreadsheet gem) and format columns so that they follow a specific number format like currencies or dates do.

require 'rubygems...

nginx: How to drop connections for a location

If you want to configure your nginx to drop connections to a specific location, you can do so by responding with HTTP response code 444.

Status 444 is a non-standard response code that nginx will interpret as "drop connection".

Example:

s...

Read your mail in networks that forbid e-mail traffic

If you are connected with a network that forbids e-mail traffic but allows SSH, you can tunnel your e-mail connection through a trusted, intermediary server:

 sudo ssh -i /home/local-user/.ssh/local-user.key -L 143:mail-server.tld:143 remote-...

Use form_for without the enclosing form tag

In rare cases you might need something like form_for (for using form builder methods on the resulting block element) but without the surrounding form. One such case would be upda...

Posted by Jakob Scholz to makandra dev (2022-10-18 07:47)
This website uses short-lived cookies to improve usability.
or learn more