Hello, Here is the context during the problem occurs : We have a new machine running on centos 8.From this machine, we restore a postgresql dump on an other machine runnning on centos 7.After several hoursof running, restore fails due to a disconnection (no route to host).But, if we disable the firewall on centos 8, restore succeed. Before having this new centos 8 machine, we had a centos 7 machine and all worked fine with firewall activated. Has anyboby an ideas, clues or something else? Thanks, Thomas Poty