I am following the instructions here to install a root certificate for Charles Proxy.
I followed every step exactly as it was outlined, and made sure to set the permissions correctly. However, when I run sudo update-ca-certificates, it outputs:
Updating certificates in /etc/ssl/certs...
0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
done.
done.
After this, the certificate remains untrusted. I also tried this, which is the same steps but tells me to install it in /usr/local/share/ca-certificates instead. When I do this, update-ca-certificates returns an error:
Updating certificates in /etc/ssl/certs...
WARNING: Skipping duplicate certificate UbuntuOne-Go_Daddy_Class_2_CA.pem
WARNING: Skipping duplicate certificate UbuntuOne-Go_Daddy_Class_2_CA.pem
WARNING: charles.pem does not contain a certificate or CRL: skipping
WARNING: dhparam.pem does not contain a certificate or CRL: skipping
1 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
Adding debian:charles.pem
done.
done.
And it still does not work. Additionally, installing a SSL cert directly through Charles (Help -> SSL Proxying -> Install Charles Root Certificate) does not work, even though it says it installs successfully.
Best Answer
If you're on Debian, try changing from .cer to .crt. File content is still the same.