Postman login --with-api-key <API key> returns: "Error: self signed certificate in certificate chain" and I can't for the life of me figure out how to fix it.
Note! This is Postman Cli specific and not to be confused with newman. There's a difference between the two.
I’ve installed Postman Cli, created an API key in https://domain-web.postman.co/settings/me/account and tested this key from outside the company network.
I have also exported both our company CA root certificate as well as the intermediate certificate ssldecrypt.domain.local from the same chain, and converted both to a PEM certificate (as per the Postman guides).
The result is a .pem file containing:
-----BEGIN CERTIFICATE-----
< company ca root cert >
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
< comapny fwssldecrypt cert >
-----END CERTIFICATE-----
This has been done in Bash:
openssl x509 -inform der -in exported_der.cer -out mypem.pem
And in Windows 10:
certutil.exe -encode exported_der.cer -out mypem.pem
The PEM certificate was added to Postman in Settings > Certificate and tested against https://postman-echo.com/get
All SSL requests from the Postman app are completed succesfully. If the PEM certificate is removed an error is returned.
Furthermore I've tried adding newman commands for adding certificates: --ssl-client-key and --ssl-client-cert, but both fails. They might work for sending requests, but for the login flow they're apparently not supported.
postman login -h
Usage: postman login [options]
Store a Postman API Key to access your Postman resources
Options:
--alias <alias> Specify the alias of the API key to fetch your resources using it.
--with-api-key <apikey> Specify the API key directly.
-h, --help display help for command
tl;dr: My API key is valid. Postman recognizes and uses my PEM certificate Newman cert commands are not useable for login
Postman login --with-api-key <API key> returns: "Error: self signed certificate in certificate chain" I How do I fix this?
