Issue
When I do
$ curl ... --cacert <(cat intermediate1.pem intermediate2.pem root.pem) ...
I see the error:
* NSS error -5978
* Closing connection #0
* Problem with the SSL CA cert (path? access rights?)
curl: (77) Problem with the SSL CA cert (path? access rights?)
So first I have to do:
$ cat intermediate1.pem intermediate2.pem root.pem >ca.pem
and then I can do
$ curl ... --cacert ca.pem ...
But why does --cacert <(cat ...) does not work? I can use <(cat ...) with the comm command for example in the same manner.
Solution
Actually this problem depends on the version of curl.
Here's a commit that added support for FIFO (which is a bash process substitution) in the --cert flag.
So, according to tags in curl repo, this problem present in library until curl-7.65 version.
Answered By - SergA Answer Checked By - Candace Johnson (WPSolving Volunteer)