Hi,

You probably already know about it, but since a few days we have a issue with some packages without signature

Removing libzmq5-4.3.5-1.el9.x86_64.rpm: Package libzmq5-4.3.5-1.el9.x86_64.rpm is not signed
Removing libzmq-tools-4.3.5-1.el9.x86_64.rpm: Package libzmq-tools-4.3.5-1.el9.x86_64.rpm is not signed
Removing zeromq-devel-4.3.5-1.el9.x86_64.rpm: Package zeromq-devel-4.3.5-1.el9.x86_64.rpm is not signed

For this repository (Opensource) :

baseurl=https://packages.centreon.com/rpm-standard/23.04/el9/stable/$basearch/