When should I use secondary DNS?

Secondary DNS service affords you an extra set of authoritative nameservers to answer queries for your domain. The information that is stored on both nameservers is identical. Secondary DNS allows your domain zone file to be backed up automatically and stored as a copy on a secondary server.

What is secondary DNS on router?

A secondary server holds a secondary DNS zone—a read-only copy of the zone file, which contains the DNS records. It receives an updated version of the copy in an operation called zone transfer. Secondary servers can pass a change request if they wish to update their local copy of the DNS records.

What DNS server should I use on my router?

Your home router is likely set by default to use your ISP’s DNS servers, which may or may not be very reliable. There are a number of third-party DNS servers available as well. Personally, I prefer OpenDNS (208.67. 220.220 and 208.67.

Should I use a different DNS server?

Switching from your current DNS server to another one is very safe and will never harm your computer or device. It might be because the DNS server isn’t offering you enough features that some of the best DNS public/private servers offer, such as privacy, parental controls, and high redundancy.

How do I know if my DNS is primary or secondary?

Open your Command Prompt from the Start menu (or type “Cmd” into the search in your Windows task bar). Next, type ipconfig/all into your command prompt and press Enter. Look for the field labeled “DNS Servers.” The first address is the primary DNS server, and the next address is the secondary DNS server.

Can you have 2 DNS servers on the same network?

You can have more than two for a domain but usually three is tops unless you have multiple server farms where you would want to distribute the DNS lookup load. It’s a good idea to have at least one of your DNS servers at a separate location.

What is my primary and secondary DNS?

When is a secondary DNS server used?

When is a secondary DNS server used? On our router we have the primary DNS set to a local IP, which is running Windows Server 2008 and the built in DNS server. We use this to resolve domains to local servers, if the domain is not founds locally we have forwarders set up to query external name servers.

How does DNS work on a router?

Many routers will actually set themselves up to be your DNS server. When you make a request for something that the router’s DNS server has never heard of before, it asks your ISP’s DNS server for the answer. In other words, the request gets passed upstream. The important thing is that when the answer comes back, the router remembers it.

Does my ISP know if I have a secondary DNS server?

A: No, because the first working nameserver our computer can contact will be used for the lookup, and your ISP’s nameserver knows nothing about your private domain. It can only hand off lookups further upstream to more authoritative nameservers. The secondary DNS will be used only if the primary nameserver is unavailable.

What happens if I put my local DNS server first?

By putting your local DNS first, your local lookups will work. Also, you can shut down or take your local DNS server offline and still surf the web without interruption. In that case, your computer will fail to connect to it as the primary nameserver, so it will contact the secondary nameserver (your ISP’s DNS) as a fallback.