The Domain Name System, usually referred to by the acronym DNS, is a hierarchical, distributed database where the keys are domain names.

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27 views

Migrating DNS from Windows Server 2003 to Windows Server 2012 R2

Current environment: Two Windows Server 2003 servers, not joined to our domain (These are here to handle our outside DNS requests). Plan: Stand up Windows Server 2012 R2 server, do not join to our ...
0
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0answers
25 views

create a record in Active Directory DNS for Openstack instance

I am working with Ansible to create an Openstack instance and assign a floating IP. I would also like to add a record for this IP to AD DNS following the creation of the instance. I have checked and ...
-1
votes
2answers
35 views

Resolve external DNS entries conditionally by request network source [on hold]

I recently set up Sophos UTM as public firewall/ALG which I use for all kinds of things, such as VPN server, reverse proxy. When I tried configuring the DNS for my external domains, I had to notice ...
0
votes
3answers
49 views

Can't connect computer to domain

I can not connect a computer to Server 2012 R2. the error message I receive is Note: This information is intended for a network administrator. If you are not your network's administrator, notify the ...
1
vote
1answer
55 views

Created A record for subdomain; DNS not updating/propagating?

I am having the worst time with GoDaddy and DNS propagation. I have created an A record under my domain name in the Zone File, and pointed it at the hosting package located under my GoDaddy account. ...
-2
votes
0answers
20 views

How to use multiple domains on mail server? Linux Debian [on hold]

Hi guys I am running mail server on linux debian but I want to use more domains how should I setup these configs and records? /etc/hostname, /etc/hosts, postfix and DNS A and MX records? thank you for ...
-1
votes
1answer
44 views

2 NIC DNS which and how and WHY [on hold]

i have a server with 2 NIC's. One is for Internet Access the other can be refereed as the one for "Internal". The Internet facing NIC is configured with a default gateway and DNS where's the Internal ...
0
votes
2answers
25 views

Forward port to address

I am trying to figure out how to map a specific address on a port on a different address. This might be very trivial, but I am not even sure how to ask Google. I have one machine running two servers: ...
-1
votes
0answers
24 views

Load balance DNS forwarder [on hold]

DNS forwarder of an ISP have a problem, I set some public addresses as DNS forwarders but all of my traffic aroud 90% used as my primary dns address. how can i balance traffic between other forwarder? ...
0
votes
0answers
15 views

Adding a NS record to dnsmasq [on hold]

if I want to add the record row: bit. 86400 IN NS example.com. to my dnsmasq, what options do I have? I googles some and found out that there is a server-options ...
0
votes
1answer
30 views

Installing a new domain server on a small network without taking down the old one

I'm attempting to replace a windows server 2003 domain controller/dns/dhcp server on a small business network with a new machine running server 2012 without having to take down the old one until ...
0
votes
1answer
18 views

Azure self DNS server

I´m trying to install and configure this scenario: Azure VM called DnsVM. Azure VM called WebVM. (this one, haves 10 webpages on IIS, not a problem) What i´m trying to do without success is to ...
3
votes
2answers
48 views

Bind DNS - Using views External zones fail transfer to slave

A brief summary of my problem is that we have started a DNS server upgrade here at my facility. We currently have 2 internal dns servers and 2 external dns servers. We are upgrading to new equipment ...
2
votes
1answer
33 views

How to get the DHCP-controlled DNS domain name for my Ubuntu machines in a Windows network?

I've been going in circles for a while trying to figure this out. I have a number of Ubuntu machines (some virtual) on a Windows network. From a Windows machine, I can ping or nslookup the Ubuntu ...
0
votes
0answers
9 views

WES09 Client not registering with dns suffix

I have HP thin clients, some running Windows Embedded Standard 2009, and some running WES 7. They are all getting DHCP addresses from our Server 2012 R2 DHCP server, with AD integrated DNS. With both ...
0
votes
2answers
34 views

Mirror Server IIS

We are keeping two IIS servers, each has a copy of sites.Both having DNS entries. How can I switch to immediately upon a failure. The objective is the secondary server should start running when the ...
0
votes
1answer
26 views

AWS DNS Error - SERVFAIL

So I have followed the configuration guide provided by Amazon (http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/CreatingNewDNS.html), but I cannot get the URL/Domain to be send out to the name ...
-1
votes
2answers
44 views

Someone made subdomains mysite.com/bellagio without my permission and I cannot remove it [duplicate]

Ok first, It's Not a duplicate question My Problem is different. I recently searched my domain in google like site:mysite.com and I see a load of links to casinos that are not mine. The subdomain ...
1
vote
2answers
49 views

Count number of DNS (bind9) clients?

I need to know the number of my DNS server clients. Probably it means unique IP's per day, or something, because i think there is no other way to identify clients in other way. So, i need to know how ...
-4
votes
1answer
34 views

DNS MX Record resolves fine from my servers, but is not cached/returned? [on hold]

So, my DNS server is returning the MX records just fine: DNS: avuna.org for type# 15 returned 0000046D61696C056176756E61036F7267 Has the proper records: mail.avuna.org A 198.167.143.175 ...
1
vote
0answers
46 views

DNS Server gone and now I get Zone Not Loaded by DNS Server

We have several domains in our infrastructure, separated by differing subnets (obviously). From our primary domain (call it domain A), we have a DNS forward lookup zone to domain B (which consists of ...
2
votes
3answers
52 views

fully qualified domain names, dhcp dns search suffixes, and trailing dots

http://www.stackoverflow.com./ does not work, notice trailing dot. Bad Request - Invalid Hostname HTTP Error 400. The request hostname is invalid. Should servers be configured to deny any URLs ...
0
votes
0answers
36 views

Manually entered Windows Server 2008 R2 DNS entry only sometimes forwards to Ubuntu VM

I have a Ubuntu VM that I'm turning into a web server. I don't want this on the domain so it doesn't automatically get a DNS entry. As such I've created one for it in the Forward Lookup Zone, but ...
0
votes
1answer
38 views

Windows Server 2012 - How to set up Domain Controller Trust?

I'm attempting to set up a test system to replicate the following environment: Two AD domain controllers serving two separate domains, mycorp.local and mycorp.hq. It's not exposed to the outside ...
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votes
0answers
15 views

Using our own web application to login other web application [closed]

Is it possible to login directoly on webmail.mailhostbox.com account by our own web application login form i am not use webmail.mailhostbox.com login page
0
votes
0answers
19 views

Multiple domains with postfix and one SSL certificate [closed]

I know i have to set up something like this: https://blog.wpkg.org/2013/07/31/postfix-and-multiple-ssl-certificates/ but the problem is - i don't have two ip adresses. Could i emulate it by adding a ...
-1
votes
2answers
33 views

Best practices for secondary DNS in case of a single Active Directory

I have a setup with only one Active Directory (not redundant). What should be configured on the client pc's to ensure the best DNS resolution ? Currently somebody configured the IP address of the AD ...
-2
votes
0answers
15 views

Using a domain (subdomain) on a different server to where the “main” domain his being used? [closed]

Is it possible to use a domain, or more accurately a subdomain on a completely different web server to where the main domain is being used? Some of my terminology may be wrong, please bare with me, ...
3
votes
1answer
75 views

Trying to understand DNS resolution inconsistency

I'm using a DNS issue I've run into to help me understand DNS resolution better. I can't seem to figure out the inconsistency I'm seeing when resolving www.fandompost.com. At the top of my query list ...
3
votes
2answers
139 views

Route 53 - Should I duplicate my SPF records as TXT records?

Amazon Route 53 supports both "SPF Records" and "TXT Records". Most documentation I read tells me to list my SPF Record as a TXT Record. I understand that the SPF Record is a newer standard. Is it ...
0
votes
0answers
36 views

Bind9 on Ubuntu - SERVFAIL

I spun up a new server on AWS using the Ubuntu 14.04 Server AMI. I'm intending to build a public DNS server for our sites. We currently have two others running CentOS, but I was informed that one will ...
-1
votes
0answers
29 views

Fallback to status page on a different server [closed]

Recently we had some server troubles. While we can't avoid any in the future, we can be transparant to customers about the server availability. We want to fallback to a different server (status page) ...
-1
votes
0answers
24 views

Fix dns or set it up from the start [closed]

My sites do not resolve because of wrong setup of dns. My server serves as an authoritative server (server.pc-news.gr) but also serves the domain pc-news.gr and another 6 domains (one of them is: ...
4
votes
2answers
106 views

When do you need a new AD forest, and when do you need a new tree?

I'm new to AD and Windows Server, and this sounds like it should be pretty obvious, but I can't seem to figure out the distinction between a tree and a forest. According to the book I'm reading: ...
-1
votes
1answer
19 views

How to set up GCE with WS 2012 R2 to host my webapp [closed]

I've got a VM instance with Windows Server 2012 Datacenter and i want to use it as a web server to host a web app, so far i've installed ISS, DNS Server, but i don't know how to configure DNS Server. ...
0
votes
2answers
46 views

Why can I not use a duplicate DC computer name for a subdomain as a parent domain?

I am new to AD and Windows Server in general, but from what I've seen on youtube, companies can have something like this: www.example.com www.eng.example.com I figured this meant that there is a ...
0
votes
2answers
35 views

Routing DNS requests via DNSMASQ [duplicate]

Ubuntu 14.04 | dnsmasq My goal is to setup a catch-all HTTP server using an Ubuntu 14.04 workstation as DNS resolver. I have installed dnsmasq on my Ubuntu 14.04 OS using apt-get install dnsmasq and ...
-6
votes
1answer
47 views

Someone else points his DNS to my webserver [duplicate]

I have a DNS registered at godaddy. The name of my DNS is: www.example.com and it works perfectly. I discovered that www.fake.de is also linking to my web server. The problem with this is that if ...
1
vote
1answer
33 views

DirectAccess: Client receiving icmp error from Ipv6 address

Pardon my naivety but I have never setup DirectAccess before, I've done some research prior and was unable to find a relevant resource. Let me provide a little background and then I'll jump into the ...
2
votes
2answers
38 views

Does DNSSec NSEC3 require support from the Registrar, DNS Server or both?

I'm interested in getting NSEC3 support for my domain getvalid.com, so that I can prevent name traversal. DYN doesn't seem to support NSEC3, and it's clear that BIND and the DNS server require the ...
1
vote
1answer
71 views

DNS errors after changing nameservers for Cloudflare

I don't know if this is the right place for my question, but I have a problem with my DNS/nameservers after changing the nameservers. I'm not sure if it is a problem at my side or at my webhost. I ...
0
votes
1answer
20 views

With anycast DNS, is it the IP or the FQDN that is doing it?

i am somewhat new to anycast and i want to know if it works on the IP or the FQDN. The reason i ask is, i have a anycastDNS account with a provider. And i would like to use my own domain name to make ...
0
votes
1answer
38 views

Priority of DNS servers

I actually have 2 DNS providers and 3 DNS server. The first and is from CloudFlare - primary, and the third is from BuddyNS - this one should be used only for backup. Backup: the server should be only ...
0
votes
0answers
21 views

Website wont resolve, Domain/website name different

my domain is AD.EXAMPLE.COM - Inhouse Server Website is WWW.EXAMPLE.COM -on Godaddy Server 2012 w/ DNS looking to itself and forwarders set to google DNS When I try to browse to our website i get ...
0
votes
1answer
56 views

Bind9 DNS reverse lookup fail

Okay so I got a problem, that my reverse lookup fail on my bind9 dns #nslookup 172.16.0.179 Server: 127.0.1.1 Address: 127.0.1.1#53 ** server can't find 179.0.16.172.in-addr.arpa: NXDOMAIN ...
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vote
0answers
17 views

Replace external Bind DNS with Windows DNS without downtime

Scenario: Were adding a 2nd link from our ISP to our network. We newly acquired our own IP block from RIPE In the same stride, we plan to replace our external BIND DNS servers with windows DNS ...
1
vote
2answers
34 views

Trying to join servers (on remote VPNed network) to Active Directory without forwarding all DNS queries over the tunnel

At our company, we have a coloc at a local datacenter (where we host our public Web Servers) and a Site-to-Site VPN set up between the coloc and our office. We would like to join the servers at the ...
0
votes
1answer
31 views

Force HAProxy to lookup DNS for backend server

I have haproxy 1.5.8, it proxies some requests (based on the path) to a third-party we have no control over. Since the IP of backend server is resolved once at startup, it breaks if the IP change. ...
1
vote
2answers
30 views

Mapping unknown subdomains to single point in zone file with DNAME

I've found that I can edit zone file like this $ORIGIN us.example.com. @ IN DNAME another.example.com. But what if I do not know all subdomains in advance, is it possible to do ...
0
votes
2answers
61 views

Website is down but only for me

I have a website that is working fine for everyone but throws an error whenever I try and access it. The web developer is saying it is a problem with my network. What should I check to confirm this? ...