getting "Error: Problem setting TLS options: File not found." when using certificates on xubuntu, but not on fedora

[vleeb]

I was now struggling a whole day long with trying to get mosquitto_sub running with certificate files on a newly installed xubuntu 20.04, but was always getting "Error: Problem setting TLS options: File not found". I tried mosquitto versions 1.16.14 and 2.0.10.

After switching to newly installed fedora33 the same command line worked properly using exactly the same files. On fedora I used mosquitto version 1.16.14.

I am using a commandline similar to this one: mosquitto_sub -d -h some.valid.aws.host.address -p 8883 -t test --cafile ./AmazonRootCA1.pem --cert ./someclient-cert.pem.crt --key ./someclient-key.pem.key --tls-version tlsv1.2

I would really appreciate some suggestions, what might cause this problem! Many thanks!

[vleeb]

Finally I found out, that this problem is only present, when installing mosquitto with snap. When installing it via apt everything works as expected. During investigation with strace I also found out, that the problem is caused by the --cafile option. The filename of this option seems to be forwarded without its given path.

[cometta]

i still face the same issue on apt-get . anyone found solution for this?