Install PowerDNS on Ubuntu 20.04
PowerDNS is an OpenSource DNS server.
Update apt repo
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apt-get update && apt-get upgrade -y |
On Ubuntu, systemd-resolved listen to port 53. This is a local DNS resolver, we need to stop this service before we can install PowerDNS.
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systemctl disable systemd-resolved systemctl stop systemd-resolved rm -f /etc/resolv.conf echo "nameserver 1.1.1.1" > /etc/resolv.conf echo "nameserver 8.8.8.8" >> /etc/resolv.conf |
To install PowerDNS with MySQL backend, run
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apt install pdns-server pdns-backend-mysql |
Since we are using MySQL backend to store DNS zones, we need to install MySQL database.
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apt install mariadb-server |
Login to MySQL, create a database and user.
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mysql CREATE DATABASE powerdns; GRANT ALL ON powerdns.* TO 'powerdns'@'localhost' IDENTIFIED BY 'YOUR_MYSQL_PW_HERE'; |
Restore database scheme provided by powerdns
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mysql powerdns < /usr/share/pdns-backend-mysql/schema/schema.mysql.sql |
You can see this scheme in PowerDNS documentation.
Configure PowerDNS to use MySQL backend
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vi /etc/powerdns/pdns.d/mysql.conf |
Add following content
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# MySQL Configuration # Launch gmysql backend launch+=gmysql # gmysql parameters gmysql-host=localhost gmysql-port=3306 gmysql-dbname=powerdns gmysql-user=powerdns gmysql-password=YOUR_MYSQL_PW_HERE gmysql-dnssec=yes # gmysql-socket= |
Restart PowerDNS
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systemctl restart pdns |
If PowerDNS started properly, you will see it listening to port 53. You can verify with command netstat -lntp
In above picture, you will see PowerDNS listen to port 53 and 8081. Port 8081 is API port, you won’t see it unless you enabled it.
To verify PowerDNS is running, you can use command
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root@vultr:~# dig @127.0.0.1 ; <<>> DiG 9.16.1-Ubuntu <<>> @127.0.0.1 ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 63898 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ;; QUESTION SECTION: ;. IN NS ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Mon Oct 12 06:53:40 UTC 2020 ;; MSG SIZE rcvd: 28 root@vultr:~# |
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