X509 certificate verification - cert4android

[mrmarkuz (Markus Neuberger)]

You can check the used certificates using openssl on CLI:

openssl s_client -connect sub.domain.tld:443 < /dev/null

@Nuke

Each time I try to delete that certificate from the GUI, it processes and then gives an error.

Maybe the certificate is already deleted and the browser needs to be refreshed?

Please also check the logs to hopefully get more detailed error information.

Maybe related:

Deleting certificates on updated systems throws an error

On updated machines the file ..actions/delete-certificate/validate-output.json which isn’t in the code anymore, may still exist and it throws a “Something went wrong” message but the certificate is deleted tough: JSON Schema output validation aborted at step /home/traefik1/.config/actions/delete-certificate/validate-output.json: JSON unmarshal error: unexpected end of JSON input. Input data: [] After removing the file /home/traefik1/.config/actions/delete-certificate/validate-output.json the e…