Linked Questions

1
vote
2answers
80 views

DNS hosting design - should secondary server not be spread over countries, networks etc? [duplicate]

My DNS registrar and DNS provider recently had a long outage, rendering all my domains unusable (email, own+client websites etc). They have 3 DNS server, who are all in the same co-hosting facility! ...
1
vote
1answer
368 views

How many DNS Servers must I have? [duplicate]

I am trying to build my own DNS. I have one server which I would like to use as DNS server. Why, according to RFC2182 section 5 (https://tools.ietf.org/html/rfc2182#section-5) I must have TWO servers ...
0
votes
1answer
25 views

Whether all attempts to determine the ip address successfully if Master DNS shutdown and secondary DNS work [duplicate]

Domain exemple-domain.com has two DNS server: dns1.exemple.com (master) and dns2.exemple.com (slave). questions: If dns1.exemple.com temporarily disabled and dns2.exemple.com works, is it possible ...
0
votes
0answers
17 views

Host name “DNS” at registrar versus AWS Route 53 [duplicate]

I'm moving a bunch of sites to a new hosting service. They are explaining to me that I need to run my own DNS, which they are advising that I simply set a host name pointer at my registrar for dns1....
92
votes
21answers
43k views

Should we host our own nameservers?

This is a Canonical Question about whether to outsource DNS resolution for ones own domains I currently have my ISP providing DNS for my domain, but they impose limitations on adding records. ...
24
votes
8answers
63k views

Why should one have a secondary DNS server?

I'm very confused. I basically understand how DNS works. Here's an example that helps illustrate what I'm having trouble understanding. Right now, I run a small web-server. I use my provider's DNS ...
44
votes
2answers
2k views

Which RFCs should be cited as internet standards?

It's extremely common for RFCs to be cited in support of opinions (including Serverfault Q&A's), but the average IT employee has a very poor understanding in regards to which RFCs define standards ...
25
votes
2answers
8k views

Some DNS servers in the world giving wrong IP address for our domain?

Our domain, grahamhancock.com is being wrongly resolved by a few people around the world, but it resolves correctly for most people. When I run through a list of free open DNS providers, about 90% ...
10
votes
2answers
610 views

Can you have NS records pointing to different providers?

Let’s say you register with a provider and you are given the following NS records: Name Server: NS18.EXAMPLE.COM Name Server: NS8.EXAMPLE.COM Could you add these to increase resilience without ...
-6
votes
3answers
4k views

How many is too many name servers (ns)?

Ever since GoDaddy's DNS outage I definitely don't trust name servers. I just created a domain name and next step is setting up name servers. I'm thinking of using Route 53, CloudFlare DNS, and ...
0
votes
3answers
1k views

Host subdomains with BIND9 and Apache in Ubuntu

I have a domain betasquirrel.com purchased from GoDaddy and a VPS with Ubuntu 16.04. And I hosted the domain successfully using BIND9 as below: Created virtual-host for betasquirrel.com in Apache and ...
-3
votes
1answer
1k views

DNS lookup takes 10 plus seconds [closed]

DNS lookup of www.duckdns.org takes 10 plus seconds. Is this my internet provider's DNS issue? Here is the output of host command using my provider DNS and Google DNS: $ time host www.duckdns.org ...
0
votes
3answers
1k views

MX Dns Record Not Detected

It's been 24 hours since I added an MX record The name was @, type was MX and value was mail.heeldiaries.com There's also an A record with mail.heeldiaries.com pointing to the IP of the server. ...
3
votes
4answers
777 views

How long a DNS timeout is cached for?

If none of the servers for the whole zone can be contacted, how long will such fact be cached for?
0
votes
3answers
2k views

DNS issue: Cannot resolve hostname

uMacBooks-MacBook-Pro:~ MacBook$ ping www.reurl.in ping: cannot resolve www.reurl.in: Unknown host MacBooks-MacBook-Pro:~ MacBook$ Hello everyone, I just moved my site from a shared server to VPS ...

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