(DNS) Enhance redundancy checks
If a zone entry has been disabled (for example an CNAME) and one tries to add an A record, it will not work because ispconfig thinks that the zone entry is still functional and the new entry is dus redundant/invalid.
If a zone entry has been disabled (for example an CNAME) and one tries to add an A record, it will not work because ispconfig thinks that the zone entry is still functional and the new entry is dus redundant/invalid.