The OP has replied to me off-list with the solution (there seems to be some problem with Google auto-deleting replies)
> It turns out firewalld was enabled. > I ran systemctl disable --now firewalld and this worked. -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/cd778eb4-60ad-482b-8764-e4026fae751cn%40googlegroups.com.
