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Asked: 2024-09-26T12:55:34+05:30 In:

How can I resolve CA certificate problems with curl on Ubuntu 14.04?

I’m in a bit of a bind here and could really use some help. So, I’ve been trying to make some API calls using curl on my Ubuntu 14.04 machine, but every time I do, I keep running into these pesky CA certificate issues. Super frustrating! The error messages aren’t very clear, and I feel like I’m going in circles trying to fix this.

I thought maybe it was just a small hiccup, but it’s been several days now, and I’m not making any progress. First, I tried updating curl and all its dependencies, hoping that would solve the issue, but no luck there. The errors just keep popping up. I even checked my libssl version and made sure it’s up to date since I’ve heard that can sometimes be related, but that didn’t change anything either.

Another thing I noticed is that when I run curl with the -k option to ignore certificate verification, it works fine, but obviously, that’s not a viable solution for production or any real use case. It just feels so wrong to bypass security, you know? Plus, I don’t want to expose myself to any potential risks if I can avoid it.

I’ve read through a bunch of forums and tried following some recommendations, like using update-ca-certificates, but my system doesn’t seem to find the necessary certificates. I’ve also considered manually downloading the CA certificate files from a trusted source, but I’m not sure where to get them from or if that’s even safe.

Is there anyone out there who’s dealt with this before? What steps did you take to resolve your CA certificate issues with curl? Are there any specific commands or configurations I might be overlooking? I’d appreciate any tips or tricks you can share. Just feeling a bit overwhelmed here, and I could really use some guidance from anyone who’s had success in tackling this problem! Thanks in advance!

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    2 Answers


    1. It seems like you’re dealing with a common issue related to CA certificates on Ubuntu 14.04. The first step you can take is to ensure that the CA certificates are properly installed. You can do this by installing the ca-certificates package, which provides the necessary certificates to verify SSL connections. Run the following command to ensure they are installed or reinstalled on your system:

      sudo apt-get install --reinstall ca-certificates

      After installing or reinstalling, run sudo update-ca-certificates to refresh the certificates. If you still encounter issues, double-check your system’s date and time settings as incorrect settings can lead to SSL verification problems. If the problem persists, downloading the CA certificates manually might be a solution. You can fetch the latest CA certificates from the [Certifi repository](https://pypi.org/project/certifi/) (which is a Python package, but well-maintained). Download the certifi cacert.pem file and point curl to it using the --cacert option when you make your API calls, like so:

      curl --cacert /path/to/cacert.pem https://your-api-url.com




    2. CA Certificate Issues with Curl

      Help with CA Certificate Issues in Curl on Ubuntu 14.04

      Yikes! Sounds like you’re really stuck with those CA certificate issues. Trust me, I’ve been there too, and it can be super frustrating. Here are a few things you could try to get things working:

      1. Update CA Certificates

      Since you’re on Ubuntu 14.04, try updating your CA certificates. You can run:

      sudo apt-get install --reinstall ca-certificates

      After that, you can also update the certificates list with:

      sudo update-ca-certificates

      2. Check Curl Configuration

      Make sure that curl is properly configured to use the CA bundle. You can check where it looks for CA certs:

      curl --version

      This should show you the path to the SSL backend and the CA certificate path. If it’s not pointing to the right place, you might need to update your curl config.

      3. Manually Add CA Certificates

      If your system is missing the necessary certificates, you can manually download them from a reliable source, like curl’s official CA extract page. Once downloaded, you can place it somewhere safe, like:

      /etc/ssl/certs/

      Make sure to update your curl command or configuration file to point to this new certificate file.

      4. Use the Correct Version of libssl

      Even though you checked your libssl version, ensure that it’s compatible with your curl version. Sometimes a mismatch can cause these kinds of issues. You can check your installed versions by running:

      dpkg -l | grep libssl

      5. Test with Different Endpoints

      Trying different endpoints can also help to see if the issue is specific to certain SSL certificates. Some servers might be using self-signed certificates that your system doesn’t recognize.

      6. Look into Using a Docker Container

      If you’re still stuck, consider running curl inside a Docker container with a more updated version of Ubuntu. It can help bypass all those older dependencies and configuration issues.

      Hopefully, one of these steps makes a difference! Don’t lose heart – you’ll get to the bottom of this. Good luck!


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