Port 80 is the default web server port and IIS would use Port 80 unless configured to use a different port.

DNS Spoofing Attack: A high rate of DNS traffic with a source port of 53 (attacker) destined to an unprivileged port (above 1024) for a DNS resolver (attack target). DNS Cache Poisoning Attack: A high rate of DNS traffic with a source port of 53 (attacker) destined to a DNS server on your network (attack target). May 31, 2011 · Hello, I am working on rolling out an isolated VLAN where I'd like to be able for the users to utilize several services provided. For instance, I'd like to allow access to for DNS, AD authentication, and group policy. The IP address of a DNS server. To specify multiple DNS servers, use multiple --dns flags. If the container cannot reach any of the IP addresses you specify, Google’s public DNS server 8.8.8.8 is added, so that your container can resolve internet domains.--dns-search: A DNS search domain to search non-fully-qualified hostnames. DNS Port(s) From: Men & Mice Support Date: Saturday, March 4, 2000 Time: 11:11:00 am At 10:00 AM +0000 3/4/2000, Simon Forster wrote: >Quick ? > >DNS services happen on port 53 but how/what ports does QuickDNS use to >transfer data for secondary services. > >Perhaps I should explain. I have my QuickDNS server behind a firewall. Aug 27, 2019 · Some firewalls allow selective configuration of UDP or TCP ports with the same number, so it's important to know the type of port you're configuring. For example, NFS can use TCP 2049, UDP 2049, or both. If your firewall doesn't allow you to specify the type of port, configuring one type of port probably configures the other. Jun 27, 2013 · The DNS forwarder should be thought of as the designated server to which a particular subset of queries (either for external addresses or specific internal addresses) are forwarded by other DNS servers within the network. It then sends (forwards) those requests for resolution to other DNS servers. Why Use DNS Forwarding For External Addresses? What port number does DNS (name resolution) use and is it TCP or UDP? UDP 53. What port numbers does DHCP use and is it TCP or UDP? UDP 67, 68.

What Is DNS Server Or Protocol Port Number? – POFTUT

What Port Does the Dynamic Update Client Use? +1 775.853.1883 +1 877.367.6647 (inside the US) +1 775.853.1886 (fax) Monday-Friday 6:30am - 5:30pm PT

DNS Tunneling: how DNS can be (ab)used by malicious actors

Multicast DNS - Wikipedia In computer networking, the multicast DNS (mDNS) protocol resolves hostnames to IP addresses within small networks that do not include a local name server.It is a zero-configuration service, using essentially the same programming interfaces, packet formats and operating semantics as the unicast Domain Name System (DNS). Although Stuart Cheshire designed mDNS as a stand-alone protocol, it can DNS Port - How to allow DNS through Firewall Jul 07, 2020 Why DNS Works On Both TCP and UDP - TechGenix Oct 31, 2009