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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13 views

Redirect ip to url through DNS

My internal Antivirus server has changed from an IP address to an URL former ip was 192.168.5.9 and am needing to find a way that I can set a redirect in DNS to allow anything that tries to access ...
0
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1answer
26 views

I am confused about the Authoritative DNS Server actual definition

I search for this a lot and the answer is the same everywhere: Authoritative servers give either the answer or "NO", the host does not exist. Non-Authoritative servers use either cache or a ...
-1
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0answers
24 views

SPF record definition [duplicate]

I'm stuck on how to create SPF records for a mail server that is hosting multiple domains. I have the following: DOMAINA.COM A Record - main-1.domaina.com CNAME Record - mail.domaina.com MX Record ...
0
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2answers
43 views

How to setup DNS correctly for computers inside a domain?

Suppose we have the following situation: there's one network with a router on which the internet access is configured and this includes the DNS IP's. Then we set up Active Directory on a server on ...
0
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0answers
17 views

forward subdomain with route 53 to ec2 instance with node js

I have node js serving both root site (non prefix) and app.mydomain with node js subdomain npm . how can I point to both of them using Route 53? as for now the root domain get request's from Route 53 ...
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0answers
17 views

Font for header menus is diffrent???? How do i fix it [on hold]

I am not that good at explaining so for example (and this is my actual site), http://securityfenceonline.com/ has a different font on the header menus then http://www.securityfenceonline.com/ does. ...
1
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0answers
11 views

DNS query from active directory is reaching reaching firewall in the same subnet

DNS query for root dns from active directory is reaching firewall which is in the same subnet. Default route for this active directory is L3 router which has no route to firewall unless traffic is ...
0
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0answers
24 views

How do I (or is it possible) set the DNS domain and a separate Windows domain?

I setup a small network @ home as a small business to provide a testbed for learning and keeping my computer skills reasonable current. The main pieces of the network are a smallish linux server w/a ...
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0answers
12 views

DNS forward to goolge apps

Im setting up a local doimain, but still keeping my google apps account. Inside my domain I nedd to be able to type mail.mydomain.com in a webbrowser and have that request redirected to ...
1
vote
2answers
23 views

Redirect www2 to another server

I need redirect www2 subdomain existent on example.com (192.0.2.1) to redirect transparently to another server (like example.net, 192.0.2.2). But I'll access this second server via www2.example.com. ...
0
votes
1answer
19 views

DNS Configuration for Exchange Autodiscover service

I need to publish the exchange service to the internet. I need a basic help with the DNS configuration of my unique registrar service. On the registrar site: I configure a DNS "A" Record that ...
0
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2answers
43 views

Reverse DNS error

Today I changed my DNS and nameservers to Cloudflare. After that, pingdom gave some strange DNS errors. I searched the internet but couldn't find a solution. The errors are: Could not find reverse ...
1
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1answer
30 views

Wildcard MX record support?

Let's say I want to start a service where customers get their own subdomain on my domain for email addresses only. I have an A record for mydomain.com and a CNAME for www.mydomain.com If I add a ...
0
votes
1answer
12 views

What's in the DNS Debug Log Message Fields

I've enable debug logging options on the DNS server, and I'm trying to parse through the output in dns.log. Here's a guide from technet on how to use server debug logging options, but I can't find ...
0
votes
1answer
31 views

WS 2012 r2 DNS server issue: Access was denied

I have a Windows Server 2012 r2 virtual machine as DC1 and DNS server running on Windows Azure and a Windows Server 2012 r2 local machine as DC2, DHCP and DNS server on-premise. I found my DNS server ...
0
votes
1answer
10 views

Webmin: write “short” records to zone file?

I'm using webmin to manage BIND DNS zones which until now have been managed manually. When I add a new record in webmin (A or CNAME) it's writing the FQDN (host + zone) into the zone file. While this ...
0
votes
1answer
18 views

What is the real-world impact of glue records on DNS resolution time?

It is common to provide 'glue' records along with NS records, to spare DNS resolvers the bother of looking up the IP address of the DNS server itself. However, it is not even desirable to provide ...
2
votes
1answer
40 views

SPF records clarification of using A mechanism

What is the difference between using v=spf1 a ~all and v=spf1 ip4:IP_OF_A_RECORD ~all or v=spf1 IP_OF_A_RECORD ~all when configuring SPF records? Which way is correct and more robust and reliable?
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0answers
16 views

python library to create DNS record on Windows 2008 [on hold]

I am searching for a Python library I can use to create DNS records on a Windows 2008. Either I cannot find any or I am overlooking something.
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0answers
12 views

Route traffic to internal device on local address for internal clients

There is no DNS server at the site, so the URL is always resolved to an external address on the Firewall. Hence traffic originates on the local network, goes out the firewall and cannot connect to the ...
2
votes
4answers
78 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
votes
0answers
32 views

create a record in Active Directory DNS for Openstack instance [on hold]

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 ...
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2answers
46 views

Resolve external DNS entries conditionally by request network source [closed]

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
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3answers
68 views

Can't connect computer to domain [on hold]

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
58 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. ...
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0answers
25 views

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

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 ...
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votes
1answer
50 views

2 NIC DNS which and how and WHY [closed]

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
1answer
27 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: ...
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votes
0answers
27 views

Load balance DNS forwarder [closed]

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
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0answers
17 views

Adding a NS record to dnsmasq [closed]

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
37 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
19 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
57 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
34 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
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0answers
10 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
36 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
31 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 ...
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votes
2answers
49 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
81 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 ...
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votes
1answer
34 views

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

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
49 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
55 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
38 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
42 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 ...
-1
votes
2answers
42 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 ...
3
votes
1answer
84 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
147 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
39 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 ...
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votes
0answers
30 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) ...
4
votes
2answers
108 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: ...