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0
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0answers
13 views

Map dynamic DNS domain to local ip within lan, external ip rest of time? [on hold]

At the moment, all my devices are configured to access my home server using a dynamic DNS domain. Is there a way that my devices can resolve the server domain to the local ip when they are connected ...
-1
votes
0answers
15 views

cannot access internal servers using public ip address

My ISP replaced my modem with a Hitron BVW-3653. Now I cannot access any of my internal servers, using their external IP Addresses. Of course I set-up forwarding on the new modem, and anyone outside ...
0
votes
1answer
14 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
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0answers
8 views

DD-WRT Client Bridge: Hosts can't find eachother by name [migrated]

My LAN is set up like so: lol you need rep to post images guilmon, gabumon are both running Arch Linux A200, phone are running Android laptop is running Windows 7 The problem: I can't seem to find ...
-1
votes
0answers
13 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 ...
0
votes
1answer
47 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 ...
0
votes
0answers
8 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
38 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
58 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
23 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
votes
0answers
25 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
votes
0answers
33 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
132 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 ...
4
votes
3answers
172 views

Windows DNS: Is there a way to partition a domain based on subnets

In our organization, we have two separate groups which share network address space and a domain. A couple of slices of /24 are allocated to my group, while the rest is allocated to our internal IT ...
1
vote
0answers
77 views

Specify DNS/Domain Controller when authenticating against a different domain

Client has two domains residing on the same subnet/physical network. Essentially there's just a POP3 mail server (OLDSERVER) and one of the old DCs (OLDDC) on life support to keep OLDSERVER happy. ...
0
votes
1answer
43 views

modem rejects logon credentials If I try to connect through http://modem/. works fine if I connect with http://<ipaddr>/

This is a real bugger:) My modem is a ZTE ZXHN H108L, connected to a linux firewall/router/gateway. The gateway is a Slackware 14.0 system on which DNS, DHCP, VPN and transparent PROXY run. The ...
0
votes
1answer
37 views

bind9, exclude external interface address from results

Good day, I am using Zentyal, configured with 2 interfaces, one internal and one external. When solving the servers hostname and aliases, bind randomly returns the external address in the results. The ...
0
votes
0answers
33 views

How to set up internal dns to copy public dns plus additional entries?

I have a windows domain example.com and a public domain of the same name. How do I set up my company DNS to resolve all the subdomains like the public DNS does, and more? Do I have to copy the entries ...
0
votes
2answers
43 views

Set binding of IIS to specific URL with parameter

i am developing an .NET web app. The app is waiting some users to enter and select a business from a large list of items, so for example: If you choose "Acme" the app will enter in www.myapp.com/Acme ...
1
vote
1answer
125 views

DNS - Remove Active Directory Integrated Forwarder on One Server

The zone in question is currently held on a single Windows 2003 Domain Controller in a remote office (the result of an acquisition), and I would like to create secondary zones at other locations in ...
0
votes
1answer
66 views

Nameserver delegation to private subnet

I'm currently having some problems delegating a subdomain, e.g. lan.example.com, to a nameserver in a private network. My private network is split in to subnets 192.168.0.1/24 <--- 192.168.0.1 ...
1
vote
2answers
54 views

where should I point my top level domain DNS for Internal Active Direcotry Services

We are planning to switch our environment from workgroup to domain (active Directory services). We are planning to register our top domain at some public register. That domain is going to be used just ...
1
vote
1answer
45 views

Planning internal DNS

I am planning a new DNS names structure inside of our corporate network. We have external registered DNS name (e.g. example.com) and internal-only not existing name (e.g. exampleinternal.local). ...
0
votes
2answers
205 views

How to set up an internal domain with Route53 on AWS?

I have a VPC on Amazon. Currently, it's running bind9 on one of the servers. It has records like this: build IN A 172.aa.bb.cc dev IN A 172.xx.yy.zz This ...
0
votes
1answer
40 views

Windows DNS stub zone with 2 NS listed inside, which one will be queried?

For a Windows DNS server stub zone, we have 2 NS servers listed there and the SOA information is correct. Both NS servers are "identical" (they sync the zones, so both are masters, so to speak, but ...
0
votes
1answer
51 views

Modify DNS queries for TLD

There is an issue. They introduced new TLD ".dev" and I have internal zone "dev.companyname.com". Some internal users use short names to access hosts in this zone (i.e. they access hostname.dev ...
0
votes
1answer
27 views

Hybrid Forward Lookup Zone

We have an active directory domain companyName.local (I know, not recommended), and a public domain companyName.com. We have a mix of cloud servers and internally hosted servers. What I would like ...
1
vote
5answers
119 views

Windows 2008 DNS Forward rules

I have Windows 2008 DNS service Internal DNS service have A-records, for example: test.mycompany.com -> 1.1.1.1 on external side: Domain have external A-records test.mycompany.com -> 1.1.1.1 ...
1
vote
1answer
102 views

Windows Server 2012 external DNS not working

I have registered a domain name (example.com) through a registrar and have it configured well enough so that when I go to http://example.com from a remote pc I get my default website. When I go to ...
1
vote
1answer
46 views

Exchange 2013 - Do I really need disjoint namespace?

We are currently in the beginnings of a migration from Exchange 2010 SP3 CU7 to Exchange 2013 CU6 (not yet installed) and have a question about the need for disjoint namespace. With our current ...
1
vote
0answers
23 views

BIND Delegation to primary AD site only [closed]

First-question, be nice please. On a physically distributed internal network we have BIND running our top level DNS at our primary site, with Active Directory serving a single subdomain locally AND ...
-1
votes
1answer
61 views

Bypass primary DNS for one domain

I need to use my default DNS as primary, but for second I could use Google's one which is already updated. I would like to use Google's DNS for a specific domain which has changed IP and is still ...
0
votes
1answer
104 views

How to use CNAME to external hosts on local DNS Server?

I have a domain mydomain.com and I'm using an external DNS Server to resolve some names like www.mydomain.com and webmail.mydomain.com on Internet. Now, I need to create a rule, only on my LAN, to ...
-2
votes
1answer
40 views

How to redirect a url to development environment in Organization Network

In my organisation we have nearly 100 people but we dont have any dedicated IT Staff to manage our network. We have one of our product running on a domain name http://www.domainkachra.com. We want if ...
0
votes
1answer
90 views

Windows DNS not picking up change to external website A record

I have pointed an external website to a new IP address. When I query the domain from an non-networked computer or device it picks up the change. I've run dnscmd /clearcache on both DCs several times ...
-1
votes
1answer
96 views

Too many DNS zones. Need advice on what to do about them

So we have someone here who loves creating DNS zones. So much so that we now have 145 different zones. 80 of these have one A record each. It has gotten to the point where we can't find anything ...
1
vote
1answer
721 views

Access libvirt+KVM virtual machines with DNS

I have an Ubuntu Trusty machine running KVM + Libvirt to manage small virtual machines, and using the standard NetworkManager to connect to regular networks. I want to be able to access the virtual ...
0
votes
0answers
50 views

Access servers from both side without hairpin router

We have a router that does not support hairpin NAT so our app server is not able to be accessed from inside. When using mobile devices we have to either change the app settings or computer host file, ...
0
votes
0answers
407 views

Cisco ASA not allowing DNS traffic to pass?

I have an ASA 5515 as my internet firewall. It is not allowing me to do NS Lookups from any internal DNS Servers, or clients. If I set my nslookup server to 8.8.8.8 (google DNS), I can resolve public ...
0
votes
0answers
59 views

nslookup gives timeout based on request - what gives?

I have the following strange problem with the DNS lookups in our Windows domain (dns service runs on the domain controller): from machine 'A': dns request for machines in the same network zone ...
-1
votes
1answer
124 views

Whatsmydns shows internal ip for class c whereas for class b it doesnt

I have a VMWare infrastructure and inside that 2 environments named A and B. "A" has its DNS in the server "D" whereas B has its DNS within itself. The scenario is as given below: A has domain ...
0
votes
1answer
303 views

Internal DNS doesn't work with CNAME

I have an internal DNS setup setup in my AWS VPC network, I just created an internal load balancer and added a CNAME record to this load balancer, but it's not working. DNS CNAME entry: db1 IN ...
0
votes
3answers
3k views

local short host name resolution: DNS/BIND vs. netbios vs. Windows

Short question: how can I ping by short hostname from Windows when DNS is correct? Protracted exposition: On Hold I've been instructed to address other things since this began, so I haven't gotten ...
0
votes
0answers
69 views

DNS server for DMZ

Servers are in a different subnet like 192.168.1.0/255.255.255.0 and there is a NAT for internet access. For example if one of my web servers ip is 192.168.1.100 inlocal then 5.5.5.100 will be my ...
0
votes
1answer
77 views

Windows DNS server for local network website unpredictable

There is a Windows server 2008 in my company LAN, that acts as a DNS server. In thesame LAN there is a linux server running redmine website (192.168.1.85). I want it to be reachable directly from the ...
8
votes
3answers
504 views

Enterprise internal URL conventions

developer here... I'd like your IT perspective on this one... I'm building a new internal web app for my company, and starting to think about how it will be deployed. Many of the existing web apps ...
1
vote
1answer
2k views

Pings to internal host returns with external IP address on one AD DC/DNS Server

We have the following problem with our Windows AD DNS Servers which is in turn causing intermittent issues on our clients: On one of our AD DC/DNS servers (Pluto) 2k3R2, we can ping an internal based ...
0
votes
0answers
31 views

QPS for dnscache

I have 2 internal DNS servers (ns1 & ns2) on Ubuntu 12.04 which run dnscache, and my client's resolv.conf have something like: nameserver ns1 nameserver ns2 nameserver 8.8.8.8 Since all my load ...
-1
votes
1answer
178 views

Internal/external DNS with subdomains

I've got an internal DNS server (part of OS X server) and it's acting as the main DNS server for a specific (physical) site. When it can't resolve hostnames itself, it forwards requests to Google's ...
0
votes
1answer
561 views

Mongodb replica failures to resolve DNS when primary DNS is stopped while secondary DNS is operational

I have setup mongod replica consisted of 3 nodes + 1 delayed hidden node + arbiter. I have setup DNS: primary and secondary internal DNS (bind) servers, so that I can reference nodes by normal FQDN ...