Questions tagged [domain-name-system]

The Domain Name System, usually referred to by the acronym DNS, is a hierarchical, distributed database where the keys are domain names. Questions involving publicly accessible domains should include the real, Fully Qualified Domain Name (FQDN)

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Replace current primary dns server without downtime

I'm planning to upgrade my primary dns server. To avoid a downtime i'm planning to create vps where i will have same configured dns server. Till i reboot primary dns server i'm planing to change VPS ...
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-1 votes
2 answers
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DNS simulation for testing purposes?

I'm wishing to simulate DNS for testing purposes, having decided to learn about it for if I was to go into webhosting. I've considered BIND (and tried setting it up), but that wasn't suited to my ...
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1 vote
1 answer
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Are there tools to convert existing DNS configuration to Amazon Route 53?

I'd like to convert all my domain names/DNS configuration to use Amazon Route 53. I'm wondering if there are any tools available that take existing DNS records and convert them for use with Amazon ...
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How can I have an Apache server at a single IP which serves different content to requests for different domain names?

I've seen this in the wild before: an Apache server that serves different sites to requests for different domain names, like so: 123.123.123.123 ^ domainA.com ^ domainB.com ^ domainC.com ...
Naftuli Kay's user avatar
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Apache subdomain not working: uses real domain

Let's say I have domain.com and sub.domain.com. Domain.com's root should be /var/www/domain_com/ and sub.domain.com's root should be /var/www/domain_com/sub/. /etc/apache2/sites-enabled/domain_com:...
Karel's user avatar
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DNS Setup for mail to two different servers

I have a stage.domainX.com and domainX.com. How do I adjust the MX records accordingly to where all mail sent to stage.domainX.com goes to one server (IP1 66.xx.xx.xx) and all other mail sent to ...
Stephen Watkins's user avatar
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1 answer
897 views

How Configure dns and iis in windows server 2003 for SUBDOMAINS

i have remote access to my company's server that is using windows server 2003... some web site (with asp.net) installed on dns and iis... i am so confused how can i confuge one of this web sites for ...
SilverLight's user avatar
1 vote
2 answers
1k views

Linux CNAME without nameserver

Is there a way to setup CNAMEs without using an actual nameserver? This is for testing purposes on EC2 so any (hacky?) way of doing it would be good. Or, if there's a light DNS server that's easy to ...
Andrei Serdeliuc's user avatar
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1 answer
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Migrating from Linksys by Cisco Router as DNS and DCHP Server to A Dell PowerEdge Windows Server 2008 R2 Box?

Okay so, I am not the best at this stuff, but I am going to try this. Okay, so, currently we have a Linksys by Cisco E2000 Router running our DCHP, as well as our DNS Server. We just purchased a ...
michaelrmcneill's user avatar
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Powerdns not using packetcache

I'm setting up a new PowerDNS server version 2.9.22 running on Debian Lenny in a Xen instance, and for some reason it is reporting that the packetcache size is 0 when I run a /etc/init.d/pdns dump: ...
Malvane's user avatar
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Windows XP PC cannot resolve external domain names without dialup connection

I'm trying to connect a Windows XP machine to the Internet via my router / ADSL modem at home. When I set up a dialup connection, the machine is able to resolve external domain names. When I just plug ...
iftheshoefritz's user avatar
1 vote
1 answer
2k views

Using dnsmasq, loopback works but local clients don't

I just finished configuring dnsmasq on a local machine and it seems to work fine when resolving domains using itself. When I point another machine on the network to use the dnsmasq machine as its sole ...
Wilco's user avatar
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8 votes
3 answers
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Does Windows try to look for IPv6 AAAA records even when it does not have a routable IPv6 address?

My network router is a ZyXEL ZyWall USG 100, which has a built in DNS server. Many Windows computers connect to it and get IPv4 addresses via DHCP. They also are informed of the DNS suffix ("internal")...
RyanTM's user avatar
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ForestDNSZone vs DomainDNSZones

I've noticed that I am getting Event ID 4515 events in my logs and using ADSIedit have determined that I have duplicate entries in my DNS for my domains. In the article found here it is recommended ...
Tom Seibert's user avatar
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Use existing server as DNS/Forwarder to another

I have a VPS which is host several sites on and my clients domain's point their A record to my servers IP address. I now want to move the sites on to a different server in a different part of the ...
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5 answers
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Starting your own professional domain extension?

I've got a domain name, let's call it: iam.us (which it is not). Now, I want to be able to provide users the chance to buy THEIRNAME.iam.us domain names. Is it legal? Is it possible? If so, where do ...
rockstardev's user avatar
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Website not accessible on ceretain ISP's

When i attempt to load my website i receive the following error.. “Unable to determine IP address from host name for www.carehomesinleeds.co.uk“ Yet it can be accessed on my friends ISP and the host ...
Ahmer's user avatar
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4 votes
4 answers
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Are major domainname registrars requiring glue records unnecessarily?

I have somedomain.com registered with Namecheap, and have successfully set up A records for ns1.somedomain.com and ns2.somedomain.com to be used as nameservers for other domains. I have otherdomain....
Nathan O'Sullivan's user avatar
2 votes
3 answers
14k views

Configure DNS Server greyed out Windows Server 2008 R2 Standard

Noob question, sorry, but I have Googled, and asked and no one knows. Basically the option to configure the DNS server is greyed out, along with just about every other option. The only option ...
Joshua Dance's user avatar
2 votes
1 answer
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What is the terminology and technology used to assign multiple IP addresses to a single host name? [duplicate]

Possible Duplicate: Point Multiple IP Addresses to a Single Host Name I want a host name such as "www.dacracot.org", to point to multiple IP addresses, "1.2.3.4" and "1.2.3.5". Is this set up by ...
dacracot's user avatar
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Does Windows DNS Server 2008 support RTT?

Does the Windows DNS server support RTT when used for recursive dns queries?
GeorgeU's user avatar
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Should a server's hostname have a DNS A record?

I have a VPS which is currently serving 2 websites and a game server. The "primary" website - my website - is robinjam.net. I've read multiple conflicting tutorials on the internet regarding ...
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Why is a A record required for NameServers?

Since glue records already provide the IPs of each NameServer, why are A records pointing to the IP of the NameServer still required on the server itself? For example : Q: "I am trying to find ...
user75228's user avatar
1 vote
1 answer
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Can I add my own custom subdomains to an existing domain name with my own DNS server?

Summary Is it possible to add some custom subdomains, for an existing domain name that's hosted on another DNS, for our internal DNS? Details Currently, our developers at our office hack their own ...
Pure.Krome's user avatar
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4 votes
3 answers
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Is sendmail caching DNS or getting it via different method than host/dig/nslookup?

We've got a linux server running sendmail that relays email through our primary mail server, but ever since a change of DNS servers last week, it's been timing out connecting to our mail server. Upon ...
morgant's user avatar
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1 answer
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Squid cant resolve local server address from RedHat Linux Server

I have a very curious problem on my RedHat linux Server. I have a Squid proxy server installed and operating wonderfully for WAN addresses. However when I try to access my local MediaWiki system I get ...
dynamphorous's user avatar
26 votes
7 answers
57k views

How do I enter a strong (long) DKIM key into DNS?

I'm trying to enter a 4028 bit DKIM key into DNS and it seems that I'm exceeding both the UDP 512 byte limit and also the maximum record size for a TXT record. How does someone properly create a ...
makerofthings7's user avatar
0 votes
4 answers
647 views

nslookup authority

I'm using nslookup and trying to figure out the difference in authoritative and non-authoritative responses. These two responses seem to be consistent (they give the same answer if you run the command ...
mouche's user avatar
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sub domain records

UPDATE 2: Our website is created on RedHat Linux. We are using Apache as the web server software. Basically, we have our website on a LAMP configuration. We use rackspace managed hosting, but they ...
oshirowanen's user avatar
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1 answer
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Configuration of send connector for Exchange 2010

I'm having a problem with the initial setup. I need to add an (A) record and an (MX) record on my DNS server and am new to exchange. Can anyone point me to a link for step by step, please Roland
Roland Fitzthum's user avatar
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3 answers
193 views

Would @ A name point to nameserver IP or server IP?

I'm using several services on one domain (tumblr, google apps) and a regular web host account. Would you normally point the @ A name to the host's nameserver IP address, or the server IP address? ...
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18 votes
1 answer
4k views

Why do DNS zone files require NS records?

Say I've operating ns1.example.org and ns2.example.org on which I want to host the zone file for example.com When I go to my registrar and purchase example.com , I will tell my registrar that my ...
Nathan O'Sullivan's user avatar
2 votes
5 answers
4k views

When A record does not exist in server forward the request to another nameserver

I'm currently beginning to plan a small Active Directory deployment and I've run into the following issue. The AD domain is example.com (the same as our public facing website) and the problem is that ...
Carlos G.'s user avatar
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2 answers
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dns query regarding web server

We have a private network in office through a ADSL modem which connects to the internet. All our IP address are in the subnet 192.168.0.XX . We have a web server running on 192.168.0.140 (Centos PC ...
Vidya's user avatar
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0 votes
4 answers
226 views

Do you need to have your own DNS in order to receive mail on a VPS?

I am wondering if I need my own DNS in order to receive emails on my Ubuntu VPS? I am currently using name.com's DNS with my domain and pointing it with A records to my server, and that works for ...
wlawl's user avatar
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3 answers
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CNAME help - wildcard DNS for SaaS

I am trying to figure out how to allow my users to use a CNAME for their unique wildcard domain. (user1.wlapi.com), etc I read here: https://stackoverflow.com/questions/5101195/custom-subdomain-with-...
DylanJones_md's user avatar
11 votes
4 answers
9k views

Is there a service that will redirect your naked domain.com requests to www.domain.com? [closed]

I know this is easy with a 301 redirect in the apache config, but I'm looking for a 3rd party service that can do this cheaply or free. I'll be using this to redirect non-www traffic to a www record I'...
offthree's user avatar
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2 answers
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Exchange webmail internal dns

How do I modify my internal dns-server, so that I can use the same DNS address as I use externally? Example; Exchange.domain.com should point to 192.168.X.X instead of external static ip. Regards
Exch's user avatar
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1 answer
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Noob confused with DNS and WHM /cPanel install [closed]

I just signed up with Knownhost using their VPS. I have never used the WHM before, and it is confusing me a little. From what I understand the WHM is used to manage multiple domains on a single server ...
SkinnyGeek1010's user avatar
0 votes
1 answer
152 views

Multiple servers with one domain name?

I have an old ASP.NET Server and Website running in IIS on this surver with many sub sites and pages for example: www.mysite.com/users/ www.mysite.com/tools/ www.mysite.com/orders/vieworders.aspx ...
SIvart Ningvi's user avatar
2 votes
1 answer
1k views

Is adding servername as an alias for localhost/loopback correct?

On linux systems, I've seen many variations of /etc/hosts configurations with regards to the loopback address, localhost, and server aliases. Some include the servername as an alias for the localhost/...
nezroy's user avatar
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1 answer
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website connection reset

I have two domain name with one site all hosted in local isp's server.http://www.example.net,http://www.example.com.Some customer of mine always complain that they cannot access my site(first) with ...
Frei Zhang's user avatar
1 vote
1 answer
2k views

Bind reverse lookup failing

I have set up my bind server but am unable to perform reverse look up the nslookup. The config file looks like this. acl "internal" {192.168.5.0/24;}; view "internal" { match-clients {"...
Thomas's user avatar
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1 answer
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DNS error from a web site hosted in a VM

I'm on a private network but I need to access on an external site hosted in a Virtual Machine. When I was in the public network I edited the hosts file(%windir%\Windows\System32\drivers\etc\hosts) ...
carlo's user avatar
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0 votes
2 answers
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Problems adding new domain to httpd.conf file

So, I just bought a brand new domain. I set up my dns records with the host (godaddy) but something strange happens on my server. I've added this to the httpd.conf file: <VirtualHost *:80> ...
Jelle De Loecker's user avatar
0 votes
1 answer
56 views

what is the nameserver for my domain name if the domain name points to my self-hosting server?

I bought an domain name, mydomain.com. I have a public static IP, xxx.xxx.xxx.xxx. My IIS server runnning on the static IP and I can access it via the IP (not the domain name). In the domain name ...
LaTeX's user avatar
  • 111
10 votes
4 answers
9k views

WHOIS command not returning useful information?

Whenever you use WHOIS command doesn't return any usefully information. I usually have to go to Godaddy, Dnsstuff or other services to get the data. I understand the reason is mostly due to spamming. ...
Max Thomson 's user avatar
0 votes
2 answers
371 views

Recover from DNS NameServer crash

I have quite a few domains registered at GoDaddy, and I'm using their nameservers. Each domain uses 2 nameservers, such as NS10.DOMAINCONTROL.COM. Recently I have encountered a problem where many ...
gilm's user avatar
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1 vote
4 answers
15k views

Can't find computer by name only by IP address

I have a server I just setup running Windows Server 2008 R2. The only roles I have configured are DHCP and Terminal Services Gateway. Internally I am only able to ping the computer by IP address and ...
Micah's user avatar
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0 votes
1 answer
276 views

ping subdomains without the full path

I want to be able to - ping x.<myuniversity>.com by just ping x How is this possible?
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