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2
votes
1answer
348 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 ...
1
vote
1answer
60 views

pfsense Multiple WAN DNS issue : when primary fails , the DNS systems stops

I am using pfsense 2.2.6-RELEASE. My configuration is as follows: Two static WAN, One LAN Using google and opendns Configured WAN-Load balancing and WAN-Fail-over Using aliases in firewall rules ...
1
vote
1answer
30 views

Secure Dynamic Updates in Active Directory-integrated DNS server not working

Domain Controller + DNS server is Window Server 2008 R2 Std. DHCP Server is Cisco Catalyst 3560 & 3750 How to trust this DHCP Server in my Active Directory-integrated DNS Server, so that I can ...
1
vote
1answer
162 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 ...
4
votes
0answers
336 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 ...
4
votes
0answers
243 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
0answers
411 views

Outlook, Webdav Calendars, and Internal DNS

I wish I knew a better way to title this problem, so if anyone can think of a more appropriate title, please let me know. I've been banging my head on this problem for a little while, and usually I ...
1
vote
0answers
27 views

Windows Server DNS Issue - Apple iOS fails with Server2008 r2

We have a peculiar issue in that our company ipads cannot resolve DNS correctly when pointing to server 2008 r2 with the DNS role. They are however, resolving correctly when targeting server 2012 with ...
1
vote
0answers
40 views

bind recursive dns server fail to answer for specific domain

I have bind9 dns server with resursion enabled only for internetwork. It is working normally but for one particular site it fails to provide the answer "ipay.com.np" When i do dig ...
1
vote
0answers
59 views

Changing DNS server timeout on Domain Controller fixed external DNS resolution failures--why?

I ran into a perplexing blocker at our main site this week, and I'd like to understand the root cause. Process-wise, my troubleshooting broke down and a confusing configuration change fixed my issue. ...
1
vote
0answers
23 views

BIND9 logging only specified view

For diagnosing purposes I need to log BIND9 queries. BIND9 is configured with two zones/views (internal/external). I've configured logging but there is a lot of unnecessary queries being logged - ...
1
vote
0answers
31 views

Captive portal with chillispot without DNS

I'm trying to set up a captive portal in openWRT using chillispot. My goal is to have an open network and display a static html with information without internet connection at all and without any ...
1
vote
0answers
72 views

Unreliable internal DNS record lookup with Windows Server 2012 R2

I am working on an Active Directory domain with a single DC running Windows Server 2012 R2. The DC is set up as a DNS server (amongst other roles), and forwards to our ISP's name servers. The gateway ...
1
vote
0answers
231 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
0answers
26 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) ...
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 ...
1
vote
0answers
183 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 ...
1
vote
0answers
97 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
0answers
266 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. ...
1
vote
0answers
416 views

Getting error 500.52 when creating reverse proxy with url rewrite

I have used the following technique for achieving Url rewriting. http://weblogs.asp.net/owscott/archive/2013/10/24/creating-a-reverse-proxy-with-url-rewrite-for-iis.aspx However i am getting the ...
1
vote
0answers
158 views

Internal-only DNS Master and Slave Servers on Linux (No Internet) - Recursion?

Using two physical Linux servers on different sub-nets, I'd like to have master and slave DNS servers. These DNS servers will only resolve internal names and addresses. Neither the DNS servers nor ...
1
vote
0answers
316 views

RE: 0000208F error

we are having problems with DNS whereas when a statically assigned system is rebooted it loses its connection to DNS, browsing through the logs for the issue, I have found the following: The DNS ...
0
votes
0answers
12 views

How do I redirect connections to a local mailserver in fail case to a online mailserver (with dns?)

Situation: I administrate a small business network (10 employees) with a bad internet connection (satellite, limited traffic volume, weather-dependent), so some services like mailserver are organized ...
0
votes
0answers
39 views

Can ping hostname on local network, but need to use FQDN over VPN?

When I ping DC1 on a local network using only the hostname, I receive an expected response. However, if I ping a remote DC (DC5 for example) over site-to-site IPsec VPN, I receive the following error: ...
0
votes
0answers
22 views

Cannot Reach Primary Domain On Lan

So i created a website for a client and now they cannot get to their www.domain.com when they are connected to their LAN. The site is hosted on our server. They have an exchange server and I added an ...
0
votes
0answers
34 views

(Apache2 and Bind9) DNS not Resolving IP on Some Sites (Intranet)

I am going to start off by saying I am new to DNS and Ubuntu Headless Servers. However I am not new to computers and programming in general. I got a wild hair one day and built an Ubuntu Server ...
0
votes
0answers
64 views

Azure point-to-site VPN assign static IP

I'm connecting a single server at Site 1 with my Azure virtual network (10.1.0.0/24) via a Point-To-Site VPN connection (192.168.11.0/24). The problem is that each time the connection drops and is ...
0
votes
0answers
96 views

Internal name resolution issue in Windows server 2008-

I have 2 dc for my domain root and additional both of them working primary DNS Ad integrated, yesterday I had issues that the root dc DNS records are not appearing but the other dc DNS zone appears ...
0
votes
0answers
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
votes
0answers
68 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 ...
0
votes
0answers
316 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
votes
0answers
105 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. ...
0
votes
0answers
66 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
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 ...
0
votes
0answers
55 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
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
0answers
31 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 ...
0
votes
0answers
24 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 ...
0
votes
0answers
217 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
0answers
172 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 ...
0
votes
0answers
81 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
2k 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
93 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 ...
0
votes
0answers
144 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
0answers
78 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 ...
0
votes
0answers
392 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 ...
0
votes
0answers
231 views

How do I set up DNS on a LAN so web users don't need to use http://localhost…?

I have deployed a web application to http://localhost:8083/MyApp on a local dev box. This is under the default web site. I would like to create a new web site and app pool, and have users access it ...
0
votes
0answers
2k views

Windows DHCP client and DNS suffix search list (option 119)

I'm trying to supply the dns search list to my windows clients to make the internal DNS naming scheme usable. Windows AD is not used so no GPO available. The ideal way would be to supply the dns ...
-2
votes
0answers
37 views

Configured a DNS server in LAN but dns resolves to ISP

I have deployed two Virtual machines. Both are domain joined. First server is the DNS server Second server has the ip of the DNS server configured in the adapter settings. But when I do nslookup it ...