I have one web where suddenly the exact same hostname appears twice in the co-domain listing. I can't delete it. When I try to do this I get a message about missing permissions. I think this is actually just a generic message for something that wasn't expected to happen. I checked the ispconfig database for any obvious hints, but this domain appears only once in the isp_isp_domain table. At the moment there's only one other domain in the table that belongs to a second web. The main difference I can see between the two is that the problem domain has an empty host value while the other domain has NULL as a value. I tried to understand how ispconfig determines which domain belongs to which web and which web to which customer etc., in the hope I could then find the bogus entry that has to be there, somewhere. Am I correct in assuming that this is all defined in isp_nodes? Any hints what creates this bogus co-domain entry? Addition: the appearance of this bogus domain is consistent with the summary that lists 5 domains. Two webs, each with one www host and one without host = 4 domains. Plus this bogus domain (which is also without host).