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-1
votes
1answer
36 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
31 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
23 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
32 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
93 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 ...
0
votes
1answer
94 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
28 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
80 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
33 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
57 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
119 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
851 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
49 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
56 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
472 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 ...
0
votes
1answer
623 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
26 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
118 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
260 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 ...
-2
votes
1answer
128 views

Intranet NameServer for Public Domain [closed]

I have registered a domain name domain.co and have a intranet DNS server (BIND) which is serving the queries. I want this domain and dns to be discoverable by anyone in the network without making any ...
0
votes
0answers
53 views

DNS zone replication between AD and Rackspace

I have an AD integrated DNS zone which maps many of our development and production websites to internal IP addresses. A zone with the same name exists on the Rackspace name servers which maps our ...
0
votes
2answers
86 views

setting dns cache to give internal address responses to my domain requests for my externally accessible server

I'm having trouble trying to find anything on the internet explaining how to do this... I'm running Ubuntu 14.04 with repository current Bind9 I have a authoritative DNS server hosting my domain and ...
0
votes
1answer
76 views

force use primary DNS?

we have an Internal DNS Server(172.16.1.1) and there is a AAA record aaa.domain.com --> 192.168.1.100 when I set ip configuration to: Primary DNS Server: 172.16.1.1 Secondary DNS Server:8.8.8.8 ...
0
votes
0answers
44 views

EC2: Persistent IP/Host for internal communication

I have a few servers on EC2 which intercommunicate using a RESTful interface. Currently, the addresses are saved in a configuration file which lists explicit IPs. This is prone to errors, because it ...
1
vote
1answer
142 views

DNS caching for a DNS name with two different IP addresses (internal vs. external)

Suppose we have a DNS entry ocean.corp.tld internally pointing to an internal IP address on our corporate network, and externally pointing to an external public IP address. Essentially same DNS name ...
2
votes
4answers
2k views

DNS A record pointing to private IP address [duplicate]

I own a domain. I will call it example.com. I want to set up a local BIND server on my private network. I have a box with the private IP address of 192.168.2.13 I would like to have this box named ...
1
vote
2answers
74 views

Assign internal IP address based on subdomain

I have a domain name, let's say foo.com. I have a server which has a public IP (Server-A). I also have a lot of servers (Server-B, Server-C, Server-D etc) which are all connected in a private network ...
0
votes
1answer
47 views

Resolve all external addresses to an internal address when an internet connection is missing

I am using a raspberry-pi running ArchLinux with a WiFi router to provide an access point for locally-hosted web content. I am running a DHCP server. When the Pi is plugged into an internet ...
-3
votes
1answer
37 views

Cannot resolve by hostname only in other local namespace [closed]

We have three local namespaces: proddomain.local, testdomain.local, devdomain.local. All of our client computers in the organization are part of the proddomain.local domain. If I select "Disable ...
0
votes
1answer
113 views

Making a reverse zone file on a 255.0.0.0 subnet

I’m trying to setup a reverse zone file for this subnet that has two hosts on it: 10.10.100.10 and 10.128.5.10. This means he netmask for the subnet would be 255.0.0.0. I inferred that the file name ...
0
votes
1answer
146 views

Setting MX entries for Failover [closed]

I have a GoDaddy domain as "example.com". I wanted to have my own DNS server for the sub domain secure.example.com. So I added a "A" record "NS" pointing to my IP and a NS record "Secure" pointed to ...
0
votes
1answer
105 views

Internal DNS and software/services resolving external IPs

So, on my network is a DNS server with an external zone (public IPs for servers) and internal zone (LAN IPs for servers). When I perform an nslookup on a server in the zone it resolves the local IP ...
0
votes
0answers
240 views

Master DNS allows External Forward, Slave does not

We have a 2 master setup that was built poorly, so we want to downgrade the second master to a slave configuration, I try and run the conversion and it works well enough internal addresses, but when ...
13
votes
2answers
1k views

Should engineering have its own DNS zone, delegate, or subdomain?

We have our organization's primary domain (with AD) example.com. In the past, previous admins have created several other zones - such as dmn.com, lab.example.com, dmn-geo.com etc - as well as ...
0
votes
1answer
63 views

Single computer cannot access servers

We have several servers running on our internal network. Our router's firewall has a redirect in place for some domains to these servers' ip addresses. This works nicely. However, we've run into a ...
1
vote
2answers
105 views

How do I forward root DNS queries for a domain while still resolving some subdomains on Server 2008?

I have a public domain, say test.com. The DNS records are stored somewhere in the cloud. However, on my Windows Server 2008 DNS servers, I want to add some internal subdomains such as sub1.test.com. ...
1
vote
1answer
63 views

DNS Record or Port Mapping

All, I have a web server sitting inside of a production network. This web server, tdxs3, has been assigned an external IP address of 96.2.192.139 which DNS should point to it's internal IP address of ...
3
votes
3answers
6k views

How To Properly Setup DNS Forwarders On Windows Server

I was wondering how to properly setup DNS forwarders on Windows Server 2008 R2. I have three Domain Controllers. Each of the DC's have have following: AD Role DNS Role DHCP Role Static IP Address ...
0
votes
1answer
55 views

Windows DNS configurations for outside IP

Here is my problem. I have a Windows DNS that points to 5 servers all within the LAN. Locally the routing to these servers works fine but I need a way to access these servers outside the LAN ( HTTP ...
3
votes
1answer
1k views

How should DNS be configured for remote VPN access to a Windows Domain?

Suppose you have a small windows domain configured as follows: domain name is ad.example.com (as per these guidelines) DC1 is at 10.10.10.3 DC2 is at 10.10.10.4 DC1 and DC2 are running the ...
1
vote
2answers
49 views

DNS finds host only if domain name is included

I have a Server 2012 DNS server on subnet 192.168.7.0 and I am trying to use that on a host on the 192.168.8.0 subnet, which is not on the domain (this may not be relevant). When I configure the ...
0
votes
1answer
96 views

Newbie - How can I configure a URL alias with Ubuntu? [closed]

I really don't know the precise terms for what I want, so I'll give you an example. I have a Amazon RDS service with an endpoint of: mydbinstance.someotherstring.us-east-1.rds.amazonaws.com I have ...
1
vote
2answers
91 views

How do I set up my office network so unqualified domain names resolve as if they have a default suffix added?

I want to type "go/something" in my browser address bar, and have my browser request "http://go.mydomain.com/something". The use case is where go.mydomain.com is our internal URL shortening service, ...
0
votes
6answers
3k views

Use the LAN based IP address to access local Apache on laptop when working outside the network?

<VirtualHost *:80> DocumentRoot "D:/Projects" ServerName 192.168.11.74 </VirtualHost> Why doesn't this work ? How to access websites on the local box (Windows, Apache, MySql, PHP) ...
-1
votes
1answer
656 views

DNS how to dynamically bind subdomains to ip and port pairs [duplicate]

I'm using bind9 I have a zone file setup with a few subdomain A records. I'm wondering if I can create a subdomain record that points to an ip address on a specific port. I'm currently updating the ...
0
votes
1answer
398 views

could not resolve hostname yet I can?

I'm having some weird issue that I cannot understand( I'm trying to ssh to alexus and according to ssh it tells me it cannot resolve, yet when i use host to resolve it resolves w/out any issues: ...
-2
votes
1answer
70 views

DNS settings are ignored [closed]

My physical setup is: DMZ (SERVER) (192.168.1.1) | | WAN ——— ROUTER (1.2.3.4, 192.168.1.254) ——— LAN LAN adresses are assigned by DHCP. ...
0
votes
1answer
52 views

Calculate requirements for a caching/forwarding-only nameserver

I am considering a caching/forwarding nameserver to be used by internal servers to speed up name resolving. Is there a way to calculate some reference values to figure out its requirements? I simply ...
1
vote
1answer
275 views

Some Hostname is not seen in DNS Manager ( Windows Server 2008 )

DC Server OS - Windows Server 2008 R2 ( Active Directory Integrated DNS Zone ) Client OS - Windows 7 I am unable to understand, why some hostname are not dynamically registered in DNS Manager. For ...
2
votes
3answers
182 views

Point *.local to 127.0.0.1 within network

So most of our developers work with a MAMP/XAMPP setup using rewrite rules to point username.project.local to a document root of /Users/username/Projects/project/public_html. This part works, but the ...