Ubuntu: How To Free Up Port 53, Used By systemd-resolved - Linux Uprising Blog
53 - Pentesting DNS - HackTricks
DNS Tunneling: how DNS can be (ab)used by malicious actors
Unable to parse DNS packet over TCP · Issue #386 · kbandla/dpkt · GitHub
udp port 53 | all-things-networking
Chapter 8] 8.10 Domain Name System (DNS)
How to Create a Common DNS Virtual Service for TCP and UDP Requests
HTTP GET Request on port 53 – OpenDNS
Chapter 8] 8.10 Domain Name System (DNS)
Note: We have also allowed Egress traffic to TCP and UDP port. This has been add . . . - Kubernetes-Slack Discussions - KodeKloud - DevOps Learning Community
Open port - Wikipedia
Blocking Port 53 TCP
Tracking down a port 53 (DNS) mystery
How to open DNS port 53 using ufw on Ubuntu/Debian Linux - nixCraft