DNSSec

How to setup DNSSEC with powerdns:

• Add dnssec to pdns.conf:

gpgsql-dnssec=yes

export ZONE=conti.work
sudo pdnssec add-zone-key $ZONE zsk 1024 active rsasha256
sudo pdnssec add-zone-key $ZONE ksk 2048 active rsasha256

Set nsec3 parameter [1]

sudo pdnssec set-nsec3 $ZONE '1 0 10 db7fcd8a'

sudo pdnssec secure-zone $ZONE
sudo pdnssec rectify-zone $ZONE

Upload public KSK ZSK [2]

host -tDNSKEY $ZONE

Check if it worked [3] or here [4]

[5]

Adding DANE/TLSA record for mail server certificate verification or use this instead [6]

openssl x509 -in /etc/ssl/certs/ssl-mail.pem -outform DER | openssl sha256

Add TLSA record to DNS:

_25._tcp.conti.work.  IN TLSA 3 0 1 9bcd8c83d61e414bd5d935545637a2a98d3f38aaaf5ff9af415ddc574e28ae80

Howto [7] and [8]

Verify with [9]