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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How do I redirect a domain
I have site hosted at a domain www.x.com. I have a newer version of the same site hosted at www.y.com. I would like to retire x.com, but for reasons of familiarity and pagerank, I need to keep the x....
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What's a good, cheap registrar that supports IPv6 glue?
I'm currently using namecheap, but I'd like to start adding ipv6 glue entries to my nameserver records, and they don't seem to support ipv6 glue reliably. What's a good, cheap registrar that supports ...
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Private IP address in public DNS
We have an SMTP only mail server behind a firewall which will have a public A record of mail.. The only way to access this mail server is from another server behind the same firewall. We do not run ...
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How do I configure SPF for multiple domains on a server? (also allowing gmail as a sender)
SPF (Sender Policy Framework) seems like a good way to combat spammers/spoofing.
However, despite reading the explanations several times, I'm not quite understanding how to configure it correctly.
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How do I setup a HOSTS file on different operating systems?
Please provide examples of how this can be setup on client and server versions of various operating systems.
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Free Name Server services reliability? [closed]
I'm starting a small web design shop. We does not have much money so we would like to keep our costs as low as possible.
All we need is a @ourcompany.com mail address and a few web pages to showcase ...
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Is there a good overview of the DNS system?
I want to get an understanding of how the DNS system works. How domain names actually get resolved and how admins setup a domain name so it is resolved correctly to a target machine.
The sources you ...
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List of domains on DNS server?
Is there a way to get a complete list of A and CNAME records on my BIND DNS server?
I have access to the zone files. But on my server there are lots of zone files, and it'd take too long to go over ...
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How can I find the answering DNS server?
Is there a way I can trace a DNS request to see where the answer is coming from?
Our network has internal DNS servers that provide internal IP address resolution, and we use EasyDNS to host our ...
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How do I fix an "invalid" SMTP server issue?
Note: Domains and IPs obfuscated for security.
We have an internal web application that sends e-mail reports out to various vendors. Our primary exchange server (domain name co.XXX.YY.ZZ) does not ...
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List of IPs that are not in DNS
What's the easiest way to get a list of windows desktops that are on a subnet but do not have names listed in the dns server?
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How do you set up DNS in Window Server 2008 in a Hyper-V environment? [closed]
I have a laptop running Server 2008 and Hyper-V. I have created a virtual machine that is also running Server 2008, that I used dcpromo to create as a domain controller. I disabled IPv6 because I ...
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Very strange home router problem [closed]
For a long time now I've had a very strange problem with my wi-fi network at home. I have a BT Voyager 2100 ADSL modem and an iMac, ageing PowerBook and a PC that connect to it wirelessly. The problem ...
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How to set up a BIND DNS server to respond a single IP address to any request on Windows?
I want to configure a BIND DNS server (since Windows Web Server 2008 does not have DNS service, I had to install BIND) that responds any request with a single A record. I had set up a * record but it ...
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Is possible to arbitrarily register names to the same public IP?
I registered a domain, lets say mysite.com (for example), then, results that somebody else has an A record from anotheraddress.com pointing to the same IP address of mine (in a VPS in linode.com)
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Linux bind server serves address of DHCP Windows clients, but not of DHCP Linux clients
I have a Linux Fedora server running Bind 9.5.0 and DHCP 3.0.6. Bind is configured to allow updates (I'm only showing part of the config, but the reverse part is there too):
zone "myhome.org" IN {
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How do I resolve a http domain name with Windows Server
How Do I use Windows Server 2008's DNS role to redirect resolve certain domain names?
When a user types in an address, I'd like to redirect it as such:
http://crm -> http://<ip of webserver>...
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Dynamically updating resolvers listed in /etc/resolv.conf
I rent some Linux servers and the hosting company provides a set of eight DNS resolvers.
The response speed varies from resolver to resolver and I periodically modify /etc/resolv.conf to get the best ...
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Internal Name Resolution
We recently migrated our work environment from a Server 2003 server running Active Directory, DNS, and DHCP to Server 2008. When we did this, something got messed up and now I can't join a machine to ...
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How Long Will A DNS Change Take
If I'm going to make a DNS change to an A record for my domain (changing from one IP to another), how long can I expect until people are moved over to the new info? Is it simply <= the TTL? I ...
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What are NS records?
I am changing host and my new host said:
Meanwhile, in order your newly registered hosting account to function correctly until the transfer is ready, you can change the NS records to the following:
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Deano
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Domain pointing to wrong IP address but DNS records seems correct
http://www.example.com points correctly to the IP address of the server where the site is hosted.
http://example.com (notice the lack of www) points to a different IP address.
The DNS records for ...