I have installed unbound on Debian Buster. Now I wonder why unbound listens 2 times on each Protocol.
netstat -tulpn
tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN 1150/unbound
tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN 1150/unbound
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 605/sshd: /usr/sbin
tcp 0 0 127.0.0.1:8953 0.0.0.0:* LISTEN 1150/unbound
tcp6 0 0 :::22 :::* LISTEN 605/sshd: /usr/sbin
udp 0 0 0.0.0.0:53 0.0.0.0:* 1150/unbound
udp 0 0 0.0.0.0:53 0.0.0.0:* 1150/unbound
Can anyone help me understand this?