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Mark
Premium
join:2001-11-15
Phoenix, AZ
kudos:1

DNS - Port 53

Port 53 is used for DNS (Dynamic Name Resolution). This is the service that translates a domain name into a usable IP address. Most likely you do not need to be running this. If you have this port open, you should check if you are running BIND (Linux/Unix based systems only), a service known for its security flaws.



RMD443

@sympatico.ca

Actually, DNS stands for "Domain Name Service", not Dynamic Name Resolution



Mark
Premium
join:2001-11-15
Phoenix, AZ
kudos:1

Sorry, I was pretty tired when I wrote that and I cannot seem to edit my post at the moment. There's no 'R' in DNS anyway. Thanks for pointing that out.