Hello,

I am running a server with one external NIC and a bridge that serves a bunch 
of lxc containers.

That bridge/NIC masqerades as the external NIC via a masq file entry.

One of the lxc containers runs nginx and ports 80 and 443 from the external 
NIC are DNATed to that container.

If I now try to use e.g the https URL of the EPEL repository from within one 
of the lxc containers, I get 
> Error: Cannot retrieve metalink for repository: epel. Please verify its
> path and try again

Changing the corresponding URL to "http" rather than "https" makes a yum 
call go through just fine. 

Is the firewalling setup to blame for this and if yes how to fix it?

Thank you for any insight.

Sincerely, Joh



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