[Twisted-Python] Using twistd with -c option causes permission error

[Maarten ter Huurne]

On Tuesday, August 28, 2018 2:10:22 AM CEST Richard Shea wrote:
> I'm trying to use the -c option of twistd like this :
> 
> twistd web --wsgi bar.app -c foo.cer  -k privkey.pem --https=4433
> 
> I'm pointing it at a cert with perms like this "-rw-r--r-- 1 root root" but
> twistd complains about a permission error .
> 
> I'm puzzled ... surely twistd only needs to read that file ?

Is it complaining about the permissions on the cert or on the private key? 
Some applications (like SSH) reject private keys if they are world-readable, 
as a precaution.

Bye,
		Maarten