The Domain Name System, usually referred to by the acronym DNS, is a hierarchical, distributed database where the keys are domain names.

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5 views

NS record in bind9 zone file

I met a strange scenario today. Normally when we setup a bind9 zone record, we put the NS record same as our ORIGIN. However today I found one working bind9 setup in the production site which has ...
0
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1answer
9 views

IIS virtual directory application and DNS

It is a bit hard to describe but I will do my best... I have an internet application which is implemented in IIS 6.0 as virtual directory (I'll call it 'ItsMyParty') in the format of ...
0
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0answers
3 views

Running ipv6 tunnel on windows 7 alongside local dns server [migrated]

I am running an IPv6 tunnel via Hurricane Electric in Windows 7, which has been working fine for ages. My router does not support IPv6 at all natively. I am also experimenting with running a local ...
10
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2answers
521 views

Do the SSH or FTP protocols tell the server to which domain I am trying to connect?

When using the ssh or ftp commands from the Bash shell, does the server that I am connecting to learn of the domain name used? I understand that the domain name is locally translated into an IP ...
-1
votes
2answers
30 views

I want to make non-www domain redirect to my www domain [duplicate]

I was wondering on how would I make my non-www domain would be direct to www domain. I've tried to configure my .htacces to redirect my non-www to www but since non-www was defualt it was infinitely ...
1
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2answers
17 views

Hostname lookup fails, name server set up correctly

We have a small network, with a main server (hosting our own website and functioning as a name server) and some web hosting servers. Since yesterday we have an issue with a domain of a client of ours ...
1
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0answers
18 views

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

In our organization, we have two separate groups which share share network address space and a domain. A couple of slices of /24 are allocated to my group (Application Operations,) while the rest is ...
0
votes
1answer
20 views

Forward/Redirect request of Elastic IP to Heroku

I have a hardware with a Elastic IP(Amazon) hardcoded in the firmware(I know, it was a dumb idea, but wasnt my idea). Now I have to forward a request of this EIP(Elastic IP) to a Heroku instance. I ...
0
votes
1answer
18 views

Redirect email for redirected domain [on hold]

I have two domain names with a registrar, one points to a server running plesk with a subscription setup to host the website. The second domain name simply redirects to the first using the registrars ...
0
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0answers
18 views

Run server on home PC [on hold]

I am newbie. I have static IP address. Is it possible to serve my web site on my local PC.While registering domain I have to specify NS server. I don't clearly understand what is the purpose of this. ...
-1
votes
1answer
21 views

Master DNS server doesn't serve the clients [on hold]

Until yesterday I had a dedicated server with 2 IPs and Plesk. The NS, NS2 is running on same server, I'm using Plesk to add the domain records. Everything I worked great. Yesterday I had to buy an ...
-1
votes
1answer
52 views

Using DNS to redirect website [duplicate]

I would like to redirect domain1.com to domain2.com using DNS. I would further like to redirect www.domain1.com to www.domain2.com. For domain1.com zone file, do I need to have an A record or are ...
0
votes
1answer
8 views

Windows Server 2008 sending regular TCP DNS requests to Forwarders

Our organization's primary DNS server is a Windows Server 2008 which two Forwarders set. I happened to notice on our firewall that this server is sending out regular TCP requests to the Forwarders in ...
2
votes
3answers
108 views

MX or A record issues

We have a mail server (Mailenable) which we are using to sell email accounts to our clients. We have one client that could not send email to a specific domain and they receieve this error from the ...
0
votes
0answers
38 views

DNS issue? Currently no logon servers available

While I have read through lots of post that have the same error message, I have not been able to find a solution that works for my situation. I have one server, Windows 2008, that I rebuilt about a ...
-3
votes
0answers
26 views

DNS Server Hardware Specifications for 100,000 or 200,000 Queries Per Second (QPS) [duplicate]

I hope everyone is fine. I am planning a load testing on DNS Server. I want a single client to send upto 200,000 QPS. The thing is that now I am going to buy/utilise the Hardware that will run the ...
0
votes
0answers
26 views

rndc fails to add zone, bind99 freebsd

I solved all rndc key errors and appear to perform most functions but when testing the addzone feature I am getting this error while trying to use rndc to add a fresh new zone -> rndc addzone ...
0
votes
0answers
21 views

Server making outbound dns requests [duplicate]

I have a cloud server with Rackspace and they have blocked DNS because of "excessive queries". I can find the info below when running ps, but I can not seem to locate where the file is that is making ...
0
votes
0answers
10 views

How to add master zone through PowerDNS API?

We have a PowerDNS master-slave setup. Now we want to use the PowerDNS API to automatically create master zones on the master server from our application. We created a master zone template, so when a ...
0
votes
1answer
12 views

Web content listing. Whitelist crafting [on hold]

What I'm trying to make easier is adding web portals to the whitelist on the firewall. I am looking for an easier way to get all sub domains and resources like google APIs. Sometimes it is hard to ...
0
votes
1answer
30 views

Is it possible to have 1 IP Address for a cluster of recursive DNS Servers?

Is it possible to have 1 or two static IP Address for a cluster of recursive (but not open relay) DNS Bind Servers that are being hosted on different cloud vpn providers? We want to have two DNS ...
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votes
0answers
23 views

Where can I find a good Anycast Provider? [on hold]

We run a VPN Service (much like unblock-us/blockless). We have two DNS servers that handle DNS requests. Unfortunately for us, they are currently at the same hosting company. We did talk about having ...
0
votes
1answer
61 views

Moving a web server without moving the email server

I need to move a client's website off their old host and onto their new host without changing their email server. I've read this extremely thorough answer on a similar question ...
3
votes
1answer
111 views

Can vSphere PowerCLI cmdlets execute from a PS1 file?

I'm looking to write an admin script that will: Delete a VM from vSphere Delete the VM's DNS entry Release the VM's IP address with our Windows DHCP server I can accomplish the first item via ...
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1answer
39 views

Individual accounts being spammed on server, even though DNS not hosted [on hold]

Disclaimer: Please pardon the newbery! I've got a dedicated linux server from HostGator that has around 100 accounts on it. Lately, dozens of these accounts get bombarded with junk mail a few times a ...
0
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0answers
23 views

Setting up local DNS cache? [on hold]

The currently available DNS servers for our business (in Indonesia) are extremely slow and seem to take a very long time to update new entries. We run Ubuntu servers (14.04) in my company, and ...
0
votes
0answers
9 views

Link A record with Laravel public directory

I set up VPS server. There I have Laravel deployed (/var/www/html/mysite/public). The issue is, in must be on mysubdomain.mysite.com. So i configured A Record for VPS IP and it really works. I set ...
0
votes
1answer
35 views

Bind9 on a dedicated server [duplicate]

I am using bind9 on a dedicated vps with ip: xx.xx.xx.xx And i have vps server with webserver and its ip: yy.yy.yy.yy Question: it is correct to point nameservers, e.g. ns1.domain.com/ns2.domain.com ...
0
votes
1answer
23 views

Debian 6 Not resolving hostnames

Regards, I've run into the following issue recently following an intrusion in to my VPS: Although resolv.conf is properly configured with the correct DNS servers the VPS can not resolve hosts. I ...
0
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0answers
5 views

Accessing localhost over WiFi by name [migrated]

This is my configuration: 1. Ubuntu 14.04 LAMPP server (localhost). 2. WiFi Access Point on ubuntu server. 3. Android device connected to WiFi access point. I can access localhost from android device ...
2
votes
2answers
172 views

Configuring Preferred/Alternate DNS Servers on a DNS server

I currently am running a single DNS server. If I don't set a Preferred/Alternate DNS server on the Ethernet controller and run the Best Practices Analyzer I get the following results: If I do ...
0
votes
4answers
37 views

Set up the right mx records for postfix/dovecot server

I recently set up a postfix/dovecot mail-server on my VPS (OVH), but for some reason I cannot receive e-mail through it. Is anyone able to check my DNS-records and my Postfix/dovecot configuration to ...
0
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0answers
8 views

I need to host several websites on IIS 8 in Windows Server 2012 for public access

I have a small server running Win 2012 and IIS and I have a public IP address from ISP. I bought several domain names for my websites. Usually I buy hosting service for hosting my website. Now I need ...
0
votes
1answer
39 views

Fragmented DNS Packet

The DNS response against my domain is 1228 bytes long and I need the packet to get fragmented in 3 packets. To achieve this I have set the MTU at name server (bind9 running on the machine) to be 500. ...
0
votes
1answer
37 views

VPS can ping host by IP but not by name

My Debian VPS can ping all host by name and IP but there's one host I can't ping by name. Ping by name failed but successful with IP However on my home PC i can ping that host by name and IP. I ...
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0answers
20 views

Simulate Domain registrations on local network [closed]

For academic purposes, I would like to simulate everything from registring domain to setting up VPS and website on local network. I would need to simulate name registrars, some sort of enviroment for ...
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0answers
19 views

Sub Domain not working?

I'm running nginx on ubuntu 14.04 LTS, on a kimsufi dedicated server. I'm pointing my domain (www.angrycrows.com) to my server using an A record. I don't have bind9 / dns hosting set up on my box. ...
0
votes
1answer
20 views

Sync DNS zones on a Standalone DNS server from a AD integrated zone

I need to install DNS services on a Server [which is a part of a domain but not a Domain Controller]. I have around 12 Domain Controllers which have DNS roles installed on them and they have around 25 ...
0
votes
1answer
27 views

PowerDNS authoritative name server works but non-authoritative name server servfail

In my current role as Devops I have been assigned a few tasks that are new to me including setting up a PDNS server with MySQL backend. After initial setup of the server I tested responses from the ...
0
votes
2answers
26 views

Domain Name Forwarding not working with github pages

I had my blog on github pages with a custom domain name blog.tamizhvendan.in and today I've moved it to a new domain name www.p3programmer.com by updating the CNAME record with www.p3programmer.com. ...
4
votes
0answers
53 views

Cisco DNS doctoring or Hairpinning?

I've the following configuration: CISCO 881, IOS 15.2(4)M6. On WAN interface is configured the 86.34.156.48/29 subnet from our ISP. Behind the router is staying 2 webserver. NAT: 86.34.156.51 <> ...
0
votes
0answers
27 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
1answer
23 views

Accessing original files on a domain which has A-Record redirect to tumblr [closed]

Hosting a tumblr on a custom domain, but allowing access to files that are at that domain, that are outside of the tumblr CMS. The custom domain I've got two A-Record DNS entries that point over to ...
1
vote
0answers
14 views

Understanding (and partially disabling?) DNSSEC for an internal domain

I am setting up a new DNS infrastructure for our internal HPC cluster environment. This involves providing a migration path from our existing DNS authorities and domains. For sake of example, let's ...
0
votes
0answers
22 views

How to find out about the nameserver configuration on a VPS

I recently inherited the management of a dedicated server with a number of VPSs installed on it, each of them hosting a number of websites and domains We require e-mail for one of the domains ...
2
votes
2answers
75 views

Windows Hosts DNS query for _ldap._tcp.domaincontroller, is this normal?

To make this easier to wrap my head around, here's what I'm using in my examples: deecee = my domain controller dctoo = another domain controller internal.foo.bar = the full DNSDomainName of ...
9
votes
4answers
567 views

How can I manage all of my domains with minimal configuration?

This is a Canonical Question about DNS server administration. I have one hundred or so domains. All of these domains need to be configured identically, but it seems like a huge waste of time to ...
1
vote
1answer
21 views

ntpd servers stuck in init state when defined by hostname, but sync correctly when defined by IP address

I started having an issue on a couple of our colo servers which is causing a fair bit of head scratching. I as alerted to clock skew on a couple of servers, and when I went to investigate ntpq -=p ...
0
votes
1answer
52 views

How to configure dynamic DNS updates when using stateless IPv6 addressing?

I am using Server 2012 with AD/DNS/DHCP. I have successfully configured stateful DHCPv6 however this does not accomplish what I would like to achieve so I disabled it and I'm currently trying to get ...
0
votes
0answers
22 views

Cisco ASA firewall blocking requests to internally hosted DNS server

I have a DNS server behind a Cisco ASA firewall. The Cisco firewall is performing NAT. When inside the network, I can NSLOOKUP directly to the server. When the client is external, requests time out. ...