can dns resolve to multiple ips?
434999
DNS can hold multiple records for the same domain name. DNS can return the list of IP addresses for the same domain name. When a web-browser requests a web-site, it will try these IP addresses one-by-one, until it gets a response.
1106993
To resolve this issue, you need to be using either: An AD-integrated DNS server. A DNS server that replicates records from an AD aware DNS server. A DNS server that has forwarding set up to query either an AD-integrated DNS server or a DNS server with replicated records.
327233
There are several possible causes for this problem. Assuming that the other computers on the network are able to acquire an IP address from your DHCP server, you can rule out the DHCP server as the cause of the problem. ... However, it could be that the server has run out of IP addresses that it can assign to clients.
283797
On most Linux operating systems, the DNS servers that the system uses for name resolution are defined in the /etc/resolv. conf file. That file should contain at least one nameserver line. Each nameserver line defines a DNS server.
1121108
['Address Mapping record (A Record)—also known as a DNS host record, stores a hostname and its corresponding IPv4 address.', 'IP Version 6 Address record (AAAA Record)—stores a hostname and its corresponding IPv6 address.']
1181212
Any DNS server that is configured in such a way as to support the recursive resolution is vulnerable to the dreaded DOS attack which is also known as the Denial of Service attack. Other potential risks include cache poisoning as well as the unauthorized use of network resources.
794942
There are a few potential causes of the problem you are seeing: Not all your DNS traffic is going to Pi-Hole. If you have a second or third DNS entry in your router or clients, and that DNS is not Pi-Hole, some of your DNS traffic will bypass Pi-Hole. The ads are coming from domains that are not on your blocklist.
192700
['Use a Smart DNS. A Smart DNS is a service that will replace your ISP-assigned DNS address with a different one. ... ', "Use a VPN. A VPN (Virtual Private Network) is a service you can use to hide your real IP address when you're on the Internet."]
353357
['Multiprotocol Label Switching.', 'IP Cisco Express Forwarding.', 'Intermediate System-to-Intermediate System (IS-IS) or Open Shortest Path First (OSPF)']
894895
['An AD-integrated DNS server.', 'A DNS server that replicates records from an AD aware DNS server.', 'A DNS server that has forwarding set up to query either an AD-integrated DNS server or a DNS server with replicated records.']
996297
['From the Start menu, select Administrative Tools, then select DNS.', 'Choose the server you want to edit, then select Forwarders.', 'Click the edit button.', 'Add OpenDNS addresses in the IP address list.', 'Click OK.', 'Click OK.']
496333
Turn off firewall on the router (no MAC or IP filters) Turn off isolation on the router. Change IP of both machines, both to automatic and something else fixed. Try adding a static arp entry on both machines.
1377678
Network administrators can use DNS RPZ to essentially stop malware-infected hosts from reaching their command and control (C&C) servers by blocking DNS resolution to known malicious hosts and sites. This effectively turns a recursive DNS server into a DNS firewall.
399268
Full cone NAT sticks a public address onto a LAN IP which would help for your individual device having problems but probably isn't the best thing to do from a security point of view.
1151461
First, your browser has a DNS cache. When you enter the web address, the browser looks to see whether it already has the mapping from domain to IP in its cache. If your browser is unable to find the information in its cache, it looks toward your operating system which also keeps a cache of DNS information.
488245
['Prerequisites. ... ', 'Configure Primary Server Networking. ... ', 'Configure Secondary Server Networking. ... ', 'Install BIND on the Primary DNS Server. ... ', 'Configure the Primary DNS Server. ... ', 'Install BIND on the Secondary Server. ... ', 'Configure the Secondary DNS Server. ... ', 'Test DNS Using Ubuntu Client.']
1158690
However, whenever a client makes a DNS request, there are 2 IP addresses which serves the request (they belong to the same server, one is the original IP address and one is the NAT IP address). When I check the A record for my name server, there are 2 A records listed.