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0
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32 views

DNS sometimes returns internal IP outside

I have 2012r2 cluster, with active directory, DNS and DC. This cluster has internal private network (IP 10.1.x.x). That cluster DNS has parent external corporative DNS. Every node has also external ...
0
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0answers
76 views

Split horizon bind dns server setup

I have two servers. The first is a publicly accessible one held by my web host to which the domain example.com is assigned. The second server is my company's private LAN server which has bind dns ...
1
vote
1answer
67 views

Disallow Non-authoritative requests to DNS caches

I need to configure the following setting for my DNS Server. This server is also my Domain Controller ( Window Server 2008 R2 Standard ) A) Non-authoritative requests to DNS caches should not be ...
0
votes
3answers
82 views

DNS redirect based in IP

I'm looking for some help. We got a WAN, which includes several different locations across US and Europe. Now I have a need that when someone SSH to a DNS, he will get connected to a server close to ...
1
vote
2answers
178 views

Windows Server 2012 using wrong IP address for replication

Is there a way to manually set what IP address/DNS record AD will use when replicating? I have a "network within a network" (NWaN) setup which spans across two remote locations-- so there's one NWaN ...
0
votes
4answers
235 views

Resolve Dynamic DNS to internal IP

I am not very familiar with dynamic DNS, and was curious if I could get it to work for a certain use case. I have a few Raspberry Pi's I'm setting up for mocking server setups of applications we use ...
0
votes
1answer
99 views

Setting up network connectivity between 2 VirtualBox Windows VMs

I am attempting to set up a set of VMs on Virtualbox and have configured one as a DC running Windows Server 2008 R2, and it's intended to function as a primary DNS server. I have created a reverse ...
0
votes
1answer
113 views

Centos 7 DNS Server /PTR/IN' **denied**

I need help, i've spend some time to troubleshoot the dns server that i created. but what happend is: when i tried to resolve the address i receive below log: Nov 15 04:21:01 mydnshostname00 named[...
1
vote
2answers
112 views

Window Server 2012 with external DHCP

I have a Cisco router connected to a server with Windows Server 2012 fresh installed on it. What should I do to configure DNS if I leave the DHCP of the Cisco router active?
0
votes
3answers
59 views

How to find DNS settings for all workstations on AD network?

A photocopier vendor I we work with for one of our customers, who has a background in IT networking, was on-site had an issue and discovered that the DNS settings on a particular workstation on the ...
0
votes
0answers
363 views

Setting up softether with dnsmasq on aws server

I am following this guide http://blog.lincoln.hk/blog/2013/05/17/softether-on-vps-using-local-bridge/ to setup softether vpn in bridge mode with dnsmasq on an aws ec2 server. I got this working fine ...
0
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0answers
112 views

ASUS RT-AC66U WiFi Unit is blocking LAN DNS/DHCP Server

I'm using an ASUS RT-AC66U for WiFi. Decided to break out an old server to handle DNS/DHCP for local experiments. The problem seems to be that the RT-AC66U is (somehow) blocking the DNS Server. ...
9
votes
1answer
267 views

What are the practical risks of enabling the unsecure DNS updates on Windows?

What are the practical risks of enabling the unsecure DNS updates on Windows? As far as I found enabling the unsecure DNS updates is a requirement for enabling DHCP Linux clients from registering ...
0
votes
0answers
70 views

event id's 1030 & 1058. Can dir \\mail\sysvol but not dir \\domain.org\sysvol?

I'm running Win2003 Server 32 bit that also runs Windows DNS Server and Exchange Server. I'm getting event id's of 1030 and 1058 every 5 minutes. I was forced by my co-location provider to change ...
0
votes
1answer
59 views

Any security benefit of top domain .local for private network internal use

In two of the SO questions here and there the prevailing opinions are that using .local for internal network is a bad idea. One of the comment however points out: However: don't use a real ...
0
votes
1answer
154 views

FreeIPA show all dns records

Just as the title says. I'm stuck at ipa dnsrecord-show mydomain.com I get prompted for a hostname Usage: ipa [global-options] dnsrecord-show DNSZONE NAME [options] I've tried wildcards but it is ...
0
votes
0answers
30 views

Secure only Dynamic DNS update don't work

Domain Controller - Windows Server 2008 R2 , it is also DNS Server but i have DHCP Server configured on Switch, which gives ip address to all Domain member computer. Here, problem is Secure only ...
-3
votes
1answer
40 views

how to configure the internal dns?

System:centos 6.5 , bind version:bind-9.8.2-0.17.rc1.el6_4.6.x86_64 I must set up an internal dns , i am not geek new for network jobs so sorry for if it is an idiot question. My centos system cannot ...
0
votes
1answer
68 views

Azure internal DNS search suffixes

I mainly use Azure for IaaS purposes (Linux and Windows VM's). We have a strict Front-End (FE) / Back-end (BE) segregation policy. FE and BE are in the same Virtual Network, but in different Subnets/...
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votes
2answers
34 views

HTTP/HTTPS routing according to URL [closed]

Hy everyone, I'm not a networking newbie, but a 'stackoverflow' newbie for sure, so I apologize in advice if i screwed-up category or group, but there seems that all this stuff is based on tags. I ...
2
votes
1answer
862 views

Disabling dynamic DNS updates with Group Policy

I am administering a system which for reasons beyond my control have a disjoint DNS namespace. I don't like it, but that's how it is, and I have no way of changing this. The reason is that the servers ...
1
vote
0answers
260 views

nginx proxy_pass with dynamic upstream servers

We're currently stuck in a situation where we are using nginx as our main frontend server for a set of services backed by a dynamic DNS based service discovery with Mesos-DNS. Our nginx configuration ...
1
vote
2answers
169 views

general questions about DNS routing

Question. I have a Windows AD Domain and there is one part that is a mystery to me: how is the Windows Domain / DNS Server doing lookups for domains outside of the Windows domain? In a simple home ...
3
votes
3answers
5k views

Windows 10 vpn change the dns settings

My Windows 10 VPN IPv4 Properties button does not work. Others have found this too. There are powershell workarounds for changing default gateway options, e.g. Set-VpnConnection -Name "VPN-NETWORK-...
0
votes
1answer
110 views

Cannot SSH using hostname, but can use the IP

Inside a VPN, there is a DNS server with a known zone of "gitlab". When attempting to do anything other than SSH (and things using SSH - scp, git) to this hostname, it works, but using SSH rejects the ...
0
votes
1answer
731 views

subdomain on route53 private hosted Zone

I have been trying to setup a Private Hosted Zone in route53 with current associated VPCs in eu-west-1 and will soon add more. I have conformed that my VPC has DNS resolution option set to yes and ...
1
vote
2answers
102 views

Single AD site needs alternative DNS records for two hosts in AD integrated DNS

We have 6 different AD sites all connected by IPSec tunnels in a full mesh aside from one office which cannot connect to our data centre for stupid ISP related reasons that are not fixable currently. ...
-1
votes
1answer
40 views

Client Primary DNS is set as Active Directroy Server IP [closed]

In my company, We have one Active Directory Server (Windows 2008 R2) and 13 Client Machines (Windows 7). This was configured by the old SysAdmin. The DHCP from Broadband Router sets Primary DNS of the ...
1
vote
0answers
27 views

openshift origin M4 - Can't access gears

I have openshift Origin installed in 3 separate servers Broker/Nameserver: openshift.example.com Node 1: node-1.example.com Node 2: node-2.example.com Districts: Small (small gears) node-1.example....
1
vote
1answer
136 views

openVPN - Client DNS queries

I have an openVPN server using a routed TUN setup. server.conf topology subnet server 10.8.0.0 255.255.255.0 push "redirect-gateway" push "route 10.0.0.0 255.255.255.0" push "dhcp-option DNS 10.0.0....
1
vote
2answers
100 views

Linux DMZ server internal and external DNS resolving [duplicate]

I have a mailserver that should resolve everything from mydomain.com to an internal DNS server and everything else (to send email) from an external DNS server. The internal DNS server can't resolve (...
1
vote
0answers
33 views

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 ...
0
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0answers
59 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
votes
1answer
64 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 ...
-1
votes
1answer
75 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
votes
1answer
42 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 someInternalStuff.xyz....
0
votes
0answers
29 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 ...
0
votes
0answers
80 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
votes
2answers
550 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
37 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
votes
2answers
76 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
votes
1answer
56 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
votes
1answer
576 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, ...
0
votes
0answers
32 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
vote
0answers
194 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
57 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 ...
4
votes
0answers
374 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
86 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 ...
0
votes
0answers
26 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
323 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 ...