FATAL: could not access private key file “/etc/ssl/private/ssl-cert-snakeoil.key”: Permission denied

Question

I believe I ended up mixing up permissions at /etc/ssl directories tree as the last modification was made on 18th November and a day after I could not get my PostgreSQL to work.

Answer 1

Try setting permissions on the .key file to 600. Postgres doesn't like key files with group or world permissions set. You may also need to change the owner to postgres, though I'm not sure about that.