[root@services:/etc/bind/master] # vim /etc/bind/master/nl/freshdot.nl/zone.db
[root@services:/etc/bind/master] # zkt-signer -v -v
   
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parsing zone "freshdot.nl." in dir "/etc/bind/master/nl/freshdot.nl"
	Check RFC5011 status
		->not a rfc5011 zone, looking for a regular ksk rollover
	Check KSK status
	Check ZSK status
	Re-signing necessary: Zone file edited
	Writing key file "/etc/bind/master/nl/freshdot.nl/dnskey.db"
could not increment serialno of domain freshdot.nl. in file /etc/bind/master/nl/freshdot.nl/zone.db: no serial number found in zone file!

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