An A record is a type of DNS record that maps a name to an IP address. For example, the A record for serverfault.com is 64.34.119.12

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Domain A record on active directory controller

Currently we have an Active Directory setup for a small network running on Debian 8 and Samba 4. At one point we had to change the ip address of the AD server from 100.0.0.4 to 100.0.0.100. I edited: ...
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DNS round-robin requests not distributed evenly

We have setup two DNS A records, where each points to a load balancer. nslookup ourdomain.com Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: ourdomain.com Address: ...
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1answer
38 views

Seperate web/mail server, mailserver won't receive emails [closed]

I have a basic set up: VPS Mailserver Domain Management This is my first experience setting up both a VPS and a separate mail server. My mail server won't receive emails. DNS A ...
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1answer
33 views

Suitable Record Type for a web server using a non-standard port?

I need to set up some servers that must be ran on ports above 5000. (This is a request from the client for this job, due to internal policies, and I can't do anything about it). What is concerning me ...
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1answer
36 views

Pointing www to one place, but keep subdomain here

First of all, sorry for the awful wording in the title. I will try to explain what I actually need and hopefully someone here will know if it's possible or no. Basically I want to point my ...
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1answer
64 views

Is a CNAME sufficient for a www. record?

I have been doing a server migration, and checking that everything related to DNS is configured correctly by using IntoDNS. After doing this though, it flags up a error saying that there is no A ...
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1answer
66 views

Do I need “A record” for AWS ELB while I set up CNAME?

I register the domain through GoDaddy. And now i have a AWS EC2 server behind a ELB. I read the document from AWS about setting up the CNAME. which I did. www CNAME elb.aws.address while ...
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102 views

Moving a web server without moving the email server

I need to move a client's website off their old host and onto their new host without changing their email server. I've read this extremely thorough answer on a similar question ...
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1answer
45 views

Accessing original files on a domain which has A-Record redirect to tumblr [closed]

Hosting a tumblr on a custom domain, but allowing access to files that are at that domain, that are outside of the tumblr CMS. The custom domain I've got two A-Record DNS entries that point over to ...
53
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6answers
7k views

Why can't MX records point to an IP address?

I understand you should not point a MX record at an IP address directly, but should instead point it to an A record, which, in turns, points to the IP address of your mail server. But, in principle, ...
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2answers
90 views

CNAME or A Record to Site under www root?

So I have a server that runs a webapp and I have recently installed our BMC Track-IT! help desk software on it. I also installed Track-IT! Web which is client facing allowing users to browse their ...
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4answers
349 views

How much time does it take for new A-records to start working?

I created a subdomain pointing to another IP address with an A-record about two hours ago. When I try to ping, like pinging from different locations (using online services), I get Unknown host:. The ...
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1answer
1k views

Alias (CNAME) record cannot be added to this DNS Name [duplicate]

In Microsoft DNS, I'm trying to setup a simple DNS Alias (CNAME) pointing from domain.com to www.domain.com. I also want to forward www.domain.com to a specific IP. In other words, I want to do ...
3
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1answer
236 views

How would you setup a up an A record for any negative query?

How would I go about setting up an A record for in Bind9 for any negative queries? I want to forward our staff to an informational page if they were to visit a non existent domain. We have an internal ...
3
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2answers
315 views

Best CNAME TTL strategy for fallover switching

I've recently been thinking about the TTL of our DNS. We have A records for our servers and then CNAME records for the customer facing names. The www.example.com CNAME points to server-01.example.com ...
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37 views

Issue getting DNS wild card A Record (*) working

I have a sub domain named subdomain under main domain named maindomain. Inside subdomain i have wild card (*) A Record that maps to a particular IP Address. This works fine and when i say ping ...
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0answers
84 views

How do large SaaS providers support A records? [closed]

According to RFC 1035 CNAME records cannot be used used in a zone apex because a CNAME record cannot exist alongside records such as SOA. This is frequently a source of frustration for those trying ...
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1answer
570 views

GoDaddy DNS point my Sub-domain to another Server? [closed]

I want my Root Domain to be still sitting on GoDaddy default IP. (To show the default GoDaddy page that we get whenever we buy a new domain). Then my sub-domains to be pointing to my own WebServer. ...
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2answers
78 views

What's an “empty” DNS A record? [closed]

I know it's not possible an A record to be empty, but what's a good "null" value I can set until I get a machine for the domain? Someone suggested putting localhost in the A record. Is it ok to do ...
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1answer
987 views

Domain controller is registering 2 IP addresses with DNS

Recently a DC was promoted and the IP was used from the old DC which was demoted and shutdown.How tostop this DC from registering 2 IP addresses with DNS? Please let me know if any questions.
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2answers
261 views

Why use CNAME in Route 53+S3 combination

I have been going through Amazon's docs on using Route 53 in conjunction with S3 to serve static websites. The strategy they show is to do: example.com A -> alias to ...
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2answers
818 views

Main domain to one server and all subdomains to another server

I'm looking to host my main domain in Server1 eg: example.com. And host all subdomain's in another server Server2. I will be creating subdomain's dynamically. eg: dynamic_subdomain.example.com I ...
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1answer
95 views

A-Record to point to hosting vs. changing DNS while keeping the mail externally

I currently am dealing with a client whose e-mail is hosted on Google. We are just in the process of taking over their domain, but their current hosting company suggests a different set up than I do ...
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1answer
2k views

Pingdom error: “No delegation could be found at the parent” when analyzing subdomain

I have a subdomain dramarsarin.crimsonandcyan.com which i wanted to point to another server. I added an A record in the zone file for crimsonandcyan.com with the host 'dramarsarin' and pointed it to ...
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1answer
315 views

CentOS, ZPanel and Cloudflare DNS error [closed]

I am stuck in a problem. I have a VPS which gave me a dedicated IPv6 address and a shared IPv4 address. I have tunneled it and installed ZPanel on my centOS server. Now I can access ZPanel from ...
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1answer
287 views

Redirect one domain to another's sub folder [closed]

I have a domain www.example.com that is shutting down, but I need to forward it to www.newwebsite.com/example/ incase there are any SEO benefits to it. The www.newwebsite.com is hosted on a LAMP ...
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1answer
302 views

A record required for MX record?

Previously our domain, let's call it ourdomain.com, pointed to an IP address (our web host). In addition, we use Office 365 to handle our domain email accounts. DNS records: ourdomain.com A ...
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2answers
125 views

Hosting server IP address doesn't match A record but still resolves, website loads ok?

Pretty confused by this, I have a website which is on a Fasthosts shared hosting package, the server IP is 213.171.xxx.x However when you do a DNS lookup the A record is a completely different IP ...
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2answers
429 views

NameServer vs DNS A-record

I have a domain nomadapp.in which is registered at GoDaddy. For temp hosting i was using Dreamhost and had changed the NameServer in Godaddy to the ones of DreamHost. Now i want to do the Following ...
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1answer
53 views

Is it possible to have both A record and URL redirect at same domain ? How to? [closed]

Let's assume I have example.org. I want to redirect all request (URL redirect) to google.com But I also want to have a A record on example.org that points to 127.0.0.1 So pinging example.org should ...
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1answer
775 views

Setting up Custom Domain with Tumblr isn't working — Correct A-record and CNAME

I'm setting up a custon domain to work with Tumblr. I configured A-record and CNAME correctly, but it still isn't working. www.whatsmydns.net shows CORRECT A-record and CNAME for Tumblr: 66.6.44.4 ...
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1answer
490 views

Using alternate server for specific subdomain - DNS settings

I'm trying to set up DNS records for a domain name, such that mail.domain.com uses a server that is different from any other request to *.domain.com. As I've been going about trying to figure out how ...
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1answer
215 views

Forwarding a domain to another subdomain

I have 2 domains jainaditya.in (domain purchased from GoDaddy and currently parked) and techphernalia.com (domain and web hosting from one.com). I created a subdomain ajain.techphernalia.com. ...
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1answer
2k views

Redirecting and changing protocol from http to https using CNAME

Hi I bought a domain with dreamhost. example.com. Now I want to redirect it to one of my azure VM at https://example.cloudapp.net. Apparently it needed to change the protocole as well. Based on my ...
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2answers
50 views

Setting A record to a url string

I have a number of domains that I'm hosting on my web server, so I've edited their A record to point to my server's IP address. Occasionally I have to change the server's IP address, which means I ...
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1answer
67 views

DNS propagation: A record and IP change on domain panel and VPS?

I'm moving my website from a VPS to a dedicated server. In my Domain administrative panel there is a DNS zone where i've changed the A record from the previous IP address to the dedicated server's ...
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1answer
1k views

DNS A records disappear, but PTR records still remain

We've been having issues with DNS records dropping. Usually it is from DHCP reservations, like printers. Yesterday it was two of our main servers, also DHCP-reserved. Right now I'm looking at a ...
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1answer
79 views

Server not available at new Route53 CNAME

I have a static website (www.example.com) hosted through AWS S3 and Route53. The customer registered their DNS through GoDaddy; www.example.com traffic works great. On that static website is a ...
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1answer
712 views

Properly Configuring A-Records in Virtualmin for DNS

I'm trying to configure my own DNS with Virtualmin for a domain that I registered through GoDaddy. However, after following the instructions of GoDaddy's support staff, I still can't successfully ...
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1answer
120 views

Can't get Answer for A Records of my Domain from dig Command

I've been trying to solve my DNS-BIND problem for two days, but still no luck. I'm really a novice in DNS configuration. This is my record file: $ttl 38400 $ORIGIN example.ir. @ IN SOA ...
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1answer
35 views

DNS cname TYPE and IP address

assume a website is aliased. for instance www.sunnyweather.com is the alias and CNAME is xyzverycomplex.sunnyweather.com. After you query and get the CNAME you then need to query the A Type for the ...
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DNS: why do we need RR type NS with name and not directly IP?

let's assume I search the NS for the domain yeahman.com. I may get an answer TYPE NS that the server for this domain is ns55.yeahman.com. Then I need at the same time a TYPE A entry in the additional ...
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1answer
1k views

Should I create a second WAN Interface for a new SSLVPN setup on my Sonicwall 2400?

Sonic Wall 2400 I'm setting up a new SSLVPN on our Sonicwall, very new to this. I currently have an exchange server as well, so mail.company.com is directed to our mail server. I'd like to setup a ...
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5answers
1k views

Is a subdomain with both A records and NS records valid?

Let's say I own example.com. I then create an A record on test.example.com to 1.1.1.1. I then create a NS record on test.example.com to ns1.anotherdnshost.com. At another DNS host, I add an A ...
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Some users are seeing Server Not Found error

I run the website http://appointedd.com. I have a strange situation. Recently I've heard from some users ~6 in the last few months but 2 last friday saying they couldn't get on because their browser ...
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3answers
171 views

Need Help to Add a domain with VPS

I recently bought a VPS and installed LAMP & WordPress. All went ok and then I tried to add the VPS to my domain. My domain is hosted with Yahoo. I added an A record with the IP address of my ...
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2answers
40 views

Can I control which DNS record a client application uses?

I'm trying to make our set of servers more fault tolerant. I have a web server, a mail server and a PBX server that uses SIP. I know that for each service, I can have the DNS return multiple A, MX ...
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1answer
270 views

Are A records to NS hostnames required?

Among other things, I have the following in my delegated zone file (note, domain is NOT rwasphost.com)... ; ; Zone NS records ; @ NS dns1.rwasphost.com. dns1.rwasphost.com. ...
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202 views

Can I have 2 A records for the same domain

I have a domain set up on my hosting account, which is a shared host. It has been doing fine, but as the site becomes more popular the response times are getting slower and slower, and sometimes ...
0
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3answers
114 views

How to change domain's A record without disabling incoming mail traffic for a while?

I have situation where my domain's A record is pointed to certain IP address, which I need to change, but MX record have destination - to my domain name! How to change A record and to avoid mail ...