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I had Caddy server running and port 80 was open, but the scanner also said port 53 was open. After quitting Caddy apparently both ports are now closed. Any reas
by Santosh83 6y ago
I had Caddy server running and port 80 was open, but the scanner also said port 53 was open. After quitting Caddy apparently both ports are now closed. Any reason for Caddy to open port 53?
- geocrasher 6y ago53 is DNS, so it is likely listening on port 53. Perhaps it runs a local DNS cache, but its firewall allows outside traffic. It might even try to provide DNS for ACME DCV.
- kej 6y agoAre you using a DNS plugin with Caddy?
- Santosh83 6y agoYes I think I may have opted to include the cloudflare-dns plugin when downloading Caddy. Perhaps it opens port 53 even though it isn't actually being used? Or perhaps Caddy's automatic HTTPS provisioning logic does this...