Getting x509: certificate signed by unknown authority minio SDK for SPACES

This is occurring using the minio GO sdk. Everything works fine with ssl = false. I did not manually add any ssl certificate but I assumed its on the SPACES server side that needs to have the certificate. I’m just trying to do a secure POST to my SPACES bucket.


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In this case, I would make sure that the CA certificates on the server that you are connecting from are up to date. This process can vary. On Ubuntu, for example, you may just be able to use this:

Of course, this never hurts either:

Debian / Ubuntu:

apt-get update && apt-get upgrade -y

CentOS / Fedora:

yum update -y