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BIND DNS to DNSSEC Converting Forwarder

I have an internal only DNS server running on BIND 9.8.4 on Debian, this recurses and caches all queries other than internal domain (ourdomain.lan) to OpenDNS. What I am hoping to do is to have all ...
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13 views

How to enforce dnsmasq to use internal dns for apex domain

We host example.com at Amazon and use Route 53 which works well outside VPN. From inside VPN we need to access to multiple internal subdomains, such as test.example.com, dev.example.com etc. which ...
0
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1answer
34 views

DNS Forwarding to Google DNS - Should i be forwarding to my firewalls DNS or to googles or no forwarding at all?

While looking at some records in my firewall I noticed that I had an address that was consistently pinging googles dns servers. After checking my domain controllers I noticed they had forwarders ...
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0answers
16 views

How to block a router on local network hogging me with mDNSResponder [closed]

I'm on a local network, connected with LAN. There's an annoying router on the same network (which I don't use), which is making five requests per second to my computer with mDNSResponder. I know ...
-1
votes
1answer
31 views

Active Directory DNS and Forest Root Domains [duplicate]

I am a little confused on the proper active directory configurations for the forest root domain. Recommendations call for using corp.example.com or internal.example.com. However, what is the best ...
0
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1answer
26 views

Is there a way to have Bind act as an authoritative server for a zone with incomplete records?

Sorry i don't really know how to phrase the question, perhaps let me explain the scenario. Say I own the domain xyz.com, and I'm using AWS Route 53 as my DNS. I want to have ...
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0answers
14 views

Bogus DNS apex records on Windows secondary server

We are introducing a DNS BIND 9 master/secondary setup to be authoritative for a zone to replace an existing Windows Server 2008 R2 DNS infrastructure. In the interim, the former Windows AD-integrated ...
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0answers
37 views

NGINX Dynamic hostname internal proxy

I have been working with nginx for a while now, however I cannot find how to do the task below, I have this record, pointing to my nginx server. x.x.x.x.cloud.example.co.nz -> My Public IP (NGINX ...
0
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1answer
44 views

How to change Active Directory Forest name

I have an active directory forest that was set up as domain.example.com initially. I want the forest to be example.com and then have domain domain.example.com exist under the forest. Is there an easy ...
0
votes
1answer
24 views

AWS VPC Connection (IPSec) DNS

Good morning, we have etablished an ipsec tunnel to our VPC. Now we want to resolve DNS Entrys we have in our Windows Server DNS (local network) on VPC Instances. At the moment we can only work with ...
0
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2answers
34 views

Network DNS Routing - How to know Public DNS Used

Basically I want to find out what public DNS Server is being used by my network. For Example I have a workstation, a DNS Server and a router(gateway). The Workstation when a user makes a DNS request ...
0
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1answer
33 views

Bind server for external site [closed]

I have a bind running on a Ubuntu server and I would like to use it instead using host files. I my quite inexperienced at bind and am having a lot of trouble with it. Right now the bind server is ...
0
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0answers
43 views

Samba 4 not working correcty as dns for internal (LAN) addresses

[Edit] We tried to use samba_internal dns and also bind9_dlz on the server where samba is installed, but both cause problems when trying to access internal addresses even by IP. So we use our DNS, ...
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0answers
18 views

DNS and Active Directory Settings

Let's suppose that my company own the domain corp.com and have it's own web server somewhere for customers to access our site using www.corp.com and I am currently setting up Active Directory using ...
1
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0answers
46 views

Domain name record in Active Directory points to .0 IP address, is this safe to delete?

Not sure if this is safe to delete. I have read that these AD domain name records are created by netlogon service, and/or others, and not changeable. I have two domain controllers, each showing ...
2
votes
2answers
45 views

dns a records become static

So here's a weird one... I'm managing a Windows AD environment. For whatever reason, when it was built, DNS was not integrated with AD. A month or so ago I went ahead and integrated DNS with AD ...
3
votes
0answers
78 views

Why can DNS server not resolve any domain ending in .io?

I have two windows domain controllers. 10.10.10.10 Primary ( win 2008 r2 ) 10.10.10.20 Replica ( win 2012 r2 ) The second one is configured as a replica of the first. About once per week, the ...
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votes
1answer
35 views

same DNS name internal and external server

My internal domain name with the same name as the external domain. when I'm tying to access to external domain from inside it is working properly with A record but my problem is the external IP ...
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0answers
12 views

Exchange 2013 and IIS issues

I know that this question has been asked several times but I need to know the steps how to fix this problem. When we put up our server we registrate our internal domain to the same name as the ...
1
vote
1answer
81 views

DNS - Non FQDN fails to resolve on Mobile Devices

We have a domain network, with the domain mycompany.local as an example. DNS server is running on Server 2008 R2. We have a server: Server1.mycompany.local which has IP: 10.1.1.1 On any Windows ...
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0answers
139 views

How can EC2 internal (10.X.X.X) IP addresses be mapped externally?

On our work internal network we've got a link to an Amazon domain. One of the servers we're talking to is: 10.29.112.X. Now this address starts with 10, so I expect it is an internally mapped ...
0
votes
1answer
44 views

Linux DNS caching for performance and safety

I am trying to figure out how to do this properly. My servers use search-domain to find the FQDN, so my code can connect using redis as the host, etc. I ran into a problem where the DNS provider for ...
-1
votes
1answer
73 views

CentOS 6.6 and CWP - DNS

I installed the CentOS 6.6 and CWP on my second laptop, I think it is erroneous DNS information.. NS1: ns1.centos-webpanel.com | IP:185.4.149.83 [Change] NS2: ns2.centos-webpanel.com | ...
1
vote
1answer
91 views

External domain not resolving internally (split DNS)

example.com is a registered domain name. Externally, there are nameservers associated with example.com which include an A record for subdomain.example.com which points to an externally hosted web ...
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0answers
37 views

How to redirect DNS for local domain to external IP?

In our office we have a windows based domain network, domain.com. Additionally, we have an external website hosted on Amazon Web Services hosting a website at domain.com/www.domain.com for both the ...
2
votes
1answer
90 views

Two DNS zones: one for internal, the other for DMZ servers, is it possible?

I currently work in a company that has two DNS servers (ns1 and ns2) open to the Internet on the DMZ, and it's hosting two zones: company.org and company.net. In both zones there are servers in the ...
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0answers
66 views

What this warning mean - WARNING: No NSS support for mDNS detected

I have Linux machines that get the data from LDAP Each user that login to the Linux machine will authenticated VIA the LDAP , and will access the machine if login and password are correct The ...
0
votes
1answer
198 views

unbound/nsd returning SERVFAIL resolving local LAN DNS. nsd alone works fine

I've been using unbound as a local recursive DNS server. Just added nsd to set up local LAN DNS. nsd is listening on port 53530 and that works fine: $ dig @127.0.0.1 data2.datanet.home -p 53530 ; ...
0
votes
1answer
41 views

Can I define a sub-domain for a record set at my ISP? [closed]

My ISP for home internet is giving me some kind of DNS record that lets me redirect a name to my dynamic IP address, I set something like MYNAME.go.myisp.tld So accessing that domain shows my home ...
0
votes
1answer
454 views

dnsmasq: failed to create listening socket for port 53: Address already in use

I got this error when i done the setup dnsmasq. ashokkrishna@krishna:~$ sudo dnsmasq dnsmasq: failed to create listening socket for port 53: Address already in use ashokkrishna@krishna:~$ netstat ...
0
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0answers
149 views

Dnsmasq's DNS response auto caching feature not working

Dnsmasq Cache and Internal Log on USR1 signal dump (when running with or without --no-daemon and --log-queries for analysis) it always shows: 0/0 cache, meaning caching feature of Dnsmasq not working. ...
0
votes
1answer
120 views

dns bind not working nslookup gives servfail

I am connected to a reliance wifi connection obtained a 192.168.0.101 ip. 192.168.0.1 as primary dns. I configured dns bind to give name to my server process. To test that locally i changed the ...
0
votes
1answer
50 views

Google app cloud - Redirect to naked domain

I have google app engine application working on my naked domain but I can't find any tutorials on how to redirect the non naked (www) sub domain to the naked domain. It seems only like they build in ...
1
vote
2answers
97 views

Replace DC/DNS in Active Directory

I have just tried to replace one of my domain controllers in a single domain forest keeping the old IP (But a new computername). As this is an environment I have "inherited" from a previous sysadmin I ...
4
votes
0answers
128 views

Samba4 internal DNS and isc-dhcp zone update

Could anybody explain, how to solve this problem with internal samba4 DNS and dynamic zone updates from isc-dhcp? In the logs I have: dhcpd: Unable to add reverse map from ...
2
votes
2answers
133 views

Work around windows automatically appending DNS suffix

At my workplace, our IT department manages a DNS server. My department works a lot with websites and to access staging servers we need to have certain domains map to those servers. Personally I just ...
1
vote
1answer
165 views

Why is ping not returning local DNS cache result? (Using DNS caching server on an internal network.)

Yet another post about this nslookup works but ping does not. I’ve read a handful of forum posts but could not find anything relevant to my setup and problem, of resolving external domain names on an ...
1
vote
1answer
73 views

Why would I want to resolve external domain names in an internal testlab network? [closed]

So I'm building a lab to learn AD and networking best practices and I've setup an AD domain on an internal network. Doing some reading, I've come upon an idea of using a caching DNS server to resolve ...
1
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2answers
165 views

How to resolve a host name in all sites in Active Directory?

I am learning AD DS currently. The scenario in my company looks like the following. WorkingPC.Asia.Corp.domain.com 172.10.212.62 FileServerA.Asia.Corp.domain.com 172.11.13.21 ...
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vote
1answer
64 views

Specify destination DNS server based on subnet

Our office subnet is 10.1.10.0/24. I have a gateway (10.1.10.1) that is forwarding DNS requests to a server running DNSmasq (10.1.10.2). I have an IPsec tunnel to our Parent Company's network ...
0
votes
1answer
82 views

Injecting DNS records for a domain on your DNS server for local domain clients

I have a Microsoft DNS server setup and running for my local domain (mydomain.local). I have set up a public domain since then (mydomain.com) and want all my local clients to have different A hosts ...
0
votes
1answer
42 views

OSX 10.6.8 can't find OD users after DNS change [duplicate]

I recently switched out a DNS server, to a more stable one, but now of my mac servers are giving me some trouble. When the network cable is in, I'm getting stuck at the login screen, even when trying ...
0
votes
1answer
128 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
vote
0answers
49 views

forward lookup zone not affecting domain network computers

ok so on the internet we have companyname.com which is our website and DNS for it hosted elsewhere. here at office our windows domain is companyname.office. On the internet I have a A record for a ...
1
vote
2answers
67 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
1answer
370 views

How to implement DHCP, DNS, hostnames on AWS VPC

This is what I THINK can happen and what I want. I create a VPC in Amazon, put a public subnet into it, put a puppet server instance and a full stack web server instance in the VPC. Now I set the ...
0
votes
1answer
76 views

OpenVPN options for internal instance name resolver on GCE

What option should be set under OpenVPN for config across Google Compute Engine to allow connected client to resolve/ping by instance name and resolve to its ip same way as it can be done when on any ...
0
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0answers
48 views

An ADDC for the domain could not be contacted

It's not first time I am installing AD server (2012) and connecting client to domain, but yes!! its the first time doing in AWS ec2 instances. The scenario is I have 2 instances, one with AD services ...
0
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0answers
121 views

Troubleshooting stub zone issues in Windows DNS

As per subj, is there an efficient way to debug and troubleshoot stub zone DNS resolution under Windows 2008 and 2012? We suspect sometimes nameservers specified in the stub zone cannot be reached or ...
2
votes
2answers
261 views

Wildcard Sub-domain of Sub-domain

I have the domain example1.com - DNS managed at Linode.com There is a site hosted at example1.com (1.1.1.2) and it works fine. I have an A record for example1.com that points sub.example1.com to ...