0
votes
0answers
13 views

Bind9 stops responding when router loses internet connectivity

I have a Ubuntu 14.04 server which is acting as a router. So one interface (wan port) has internet access and the second interface (lan port) doesn't. All traffic from the lan port is masqueraded and ...
-1
votes
1answer
29 views

Is SERVFAIL error related to changing of nameservers?

After changing name servers of recently acquired domain, I receive this SERVFAIL error running dig on the domain name. GoDaddy, where I buy domain name, says it's not their fault because the WHOIS ...
0
votes
2answers
34 views

How does one test DNS performance on their webhost vs. a 3rd party dedicated service?

I have been hosting my dns with rackspace for years, formerly slicehost but I have been looking into a 3rd part host, as a result of running various speed tests, such as tools.pingdom.com to test the ...
3
votes
5answers
955 views

Can I have my DNS server and my web server on the same IP? [closed]

I just bought a raspberry pi and made it a web server. I have a network with 1 IP. I created a DMZ and I am able to access my raspberry pi web server from the internet. I bought a domain that I intend ...
0
votes
0answers
74 views

DNS - Custom Nameservers Errors

I am planning on setting up some DNS services and I would like some advice as I have errors from the site: www.intodns.com. First of all let me briefly outline my scenario. I have a VPS server with ...
1
vote
2answers
31 views

Advance DNS - Redirecting Emails to new webhost

I am not to sure if this question belongs here but I will surely find out soon enough. I have two web hosts (Not sure why it has been setup this way but it has). I do not want to use the original web ...
2
votes
1answer
141 views

IIS: DNS Server Spoofed Request Amplification DDoS

We are running an IIS server with DNS and a site owner asked us to run a specific security scan. Our site passed but we were warned with this and I'd like to clean it up and I'm a little unfamiliar ...
1
vote
2answers
49 views

Implementing DNS Redundancy - Web Hosting

After our domain registrar/name server host went down we have found that DNS is a major single point of failure as its also taken down all of our email (Office365), web, hosted services etc.. I want ...
0
votes
2answers
148 views

How does Cloudflare know about my Subdomains?

I just signed up Cloudfare and they showed me a list of my subdomains by scanning my domain. How do they do this? What technology is used to scan all subdomains related to a root domain?
0
votes
1answer
99 views

Why use obscure nameservers? [closed]

I have noticed that most nameservers for "The Big Guys" use strange domains. Why don't they use their primary domain for nameservers like NSX.register.com or NSX.godaddy.com or NSX.dreamhost.com ? ...
-2
votes
1answer
35 views

How to access my site as http://www.blah.com and http://blah.com [closed]

I own a domain on GoDaddy, let's say blah.com. And i point an A record @ to my server IP, let's say 123.123.123.123. The GoDaddy panel already have a CNAME record www wich points to @. I suppose ...
-4
votes
1answer
108 views

Previously working domain name, suddenly 'no records found'

The domain name is question: cleangreenpgh.com. I host a few web client websites on my co-located Mac server. Domains are through OpenSRS. Four domains in all, using same records to point to ...
-1
votes
1answer
65 views

Masking CNAME/A Record Requirements from Clients

I'm reselling hosting services to non-technical clients. With regards to associating domains/IPs, the host I'm reselling requires that once a VPS is deployed i then go to the domain's registrar and ...
2
votes
1answer
311 views

Using a cname for root/apex DNS zone loses MX records

DNS is hosted with Media Temple - I mentioning this only because I am curious if my logic is wrong or if this is specific to the way the Media Temple front end is translating input from the edit form ...
0
votes
1answer
83 views

Why does this name server resolve incorrectly?

Why does this ENom name server resolve incorrectly? Earthlink is related to my ISP. $ nslookup yahoo.com dns1.name-services.com Server: dns1.name-services.com Address: 98.124.192.1 Name: ...
5
votes
3answers
105 views

What tools should I use for DNS diagnostic?

I am trying to host a domain name (pressemag.com) on my dedicated server. I have put DNS the domain name provider gave me I put the .pressemag.com A 88.190.22.44 but nothing.. site is totally ...
-5
votes
1answer
37 views

Why we have always two ips as DNS Entry [closed]

Why we have two IPs for dns entry like in Google DNS - 8.8.8.8 8.8.4.4 Or as in OpenDNS - 208.67.222.222 208.67.220.220 Also in router settings, it shows always 2 ips for DNS. Any specific ...
2
votes
1answer
83 views

How do you change the IP address of a DNS server?

I currently host a DNS server to make it easier to manage our company's subdomains (we're web-devs). However we need to change the IP address of one of the DNS servers as the DNS service has been ...
2
votes
2answers
123 views

How can I mitigate DNS Server outages?

Let's say I have a root domain of "mysite.com". That domain and its sub-domains have DNS served by an external service - let's call them Setwork Nolutions. If this external company is hit with a DDoS ...
0
votes
0answers
30 views

Should each of my websites have a domain.db zone file on my server?

I am sorry if this is a stupid question. I have a few domains on my server. I use DNS Made Easy to manage my DNS. So my registrar is pointing towards DNS Made Easy, and DNS Made Easy is pointing ...
1
vote
2answers
123 views

Is there a way to tell all DNS servers to keep resolving the URL while the root DNS server is offline? [closed]

It already happened twice that the root DNS server of the webhoster (a well known company) where one of our domains is registered went down for hours (due to a DOS attack). Our website was unavailable ...
0
votes
3answers
212 views

Point dns to vps - How dns works [closed]

I'm moving from a sharedhosting to a VPS and I'm struggling with DNS'. My hosting company only provides me my VPS' IP, and my domain, say mydomain.com is registered a registrar called bookmyname.com. ...
1
vote
2answers
2k views

Superfluous name server listed at parent

The domain in question is lhlc.org.uk. The name resolves correctly but when using Pingdom DNS Check it says that errors were found: ...
0
votes
1answer
117 views

DNS Nameserver Error

Sorry I am new to this DNS jargon so the following question might sound obvious. I have a VPS server and I am using third party dns server for managing DNS. My DNS provider had given me his own name ...
2
votes
1answer
113 views

Are these nameservers configured properly?

I'm caught in a technical war between two companies. One is a major email hosting organization. The second is a DNS provider called DNSMadeEasy. The problem: An email from an outside domain to a ...
0
votes
2answers
122 views

DNS: How to find out which software a remote DNS server is running

Situation I know the IP address of a DNS server running in the same network on a machine which I can't maintain. Question How can find out more about which software that DNS server uses? Thanks ...
-5
votes
1answer
67 views

Domain names have gone down - site still up [closed]

I host a couple of websites on the same Ubuntu server, and as of today both domain names have gone down. PuTTY and FTP still both work so it is obviously a problem with the domain name. I haven't ...
-1
votes
1answer
37 views

Why I can not link my domain to a new nameservers? [closed]

I have a domain name for my online website and it works fine I change the hosting server for some reason and now everything is going bad. I can not link my domain to the nameservers for example my old ...
1
vote
1answer
1k views

Cloudflare, reverse DNS and php mail ending up in spam folder

I've been using Cloudflare to host my DNS, and PHPMailer to send e-mail through ZOHOs SMTP servers with great success, but have found that all my e-mails are hitting Gmail, Zoho and Hotmails spam ...
0
votes
2answers
78 views

conditionally resolving an incoming dns request

I want to conditionally resolve a DNS request based on incoming query. Let's say I have 4 domains - www.a.com , www.b.com , www.c.com and www.d.com. As of now they are point to s.com using CNAME. ...
0
votes
1answer
728 views

SRV DNS Record with Custom Ports. Am I misunderstanding what SRV is supposed to do?

I have read up on SRV records, and thinking I understand what they are meant for, I want to achieve the following: In short: Bind a hostname to another hostname, but changing the port. I.e. Take ...
5
votes
2answers
138 views

Run local dns-server that forwards dns querys to different dns nameservers

I would like to run my own local dns-server, that forwards only some dns-queries to special dns-servers and all others to the public google dns servers. The database of the local DNS-Server should ...
0
votes
1answer
124 views

BIND not pointing to right IPs

This is more of an experiment to learn and understand BIND/NAMED more but here is what I have. I set my computers DNS to my linux server's IP. I have BIND9 running with the following entry: $TTL ...
0
votes
1answer
311 views

How to diagnose DNS problems after switching to Route 53

My domain was purchased with Enom and up until a few days ago I was using their DNS. I made the switch to Amazon Route 53 and set up all my records there. Every time I've tweaked the records I've ...
2
votes
3answers
232 views

DNS wildcard: make all subdomains unresolvable

Here's the situation: before I bought the domain, all of its subdomains were resolving to some IP address (let's call it WRONG IP) after I bought it - nothing changed. I could add my own records, ...
0
votes
1answer
66 views

Using different DNS hosting providers for good redundancy?

Can I use three different free DNS hosting providers as namesevers for the same domain? I can't pay for DNS hosting and so after some research I've found three different free DNS providers. None of ...
1
vote
2answers
513 views

A record DNS for my domain not working

I have problems with my A DNS record. My parent domain is www.altermedia.ba. Last month we bought new hosting service at Arvixe, and registered our subdomain curiosity.altermedia.ba on their DNS ...
0
votes
2answers
214 views

BIND DNS Domain change issues for domain entry

On BIND, I have an entry for a domain that is pointing to an old server and IP. This machine doesn't exist any more. When I make the change to point to the new server, the nslookup is still showing ...
0
votes
1answer
33 views

Redirecting a particular email via dns?

Is there any way to setup an MX record or similar so that a particular email address on the domain forwards on to another, rather then doing it at the cpanel or app (outlook, gmail) end?
0
votes
2answers
402 views

DNS on OSX Lion

I run a OSX Server (10.6) that runs a DNS server supporting several domains (A records, MX). All went smooth until two days ago, when I stopped receiving emails. I didn't change anything to the ...
0
votes
1answer
55 views

removing the 'www' in bind9 dns

I want to create a record in my zone file which, by default goes to my webserver when I type in "mydomain.com" as opposed to "www.mydomain.com" <-- working. can someone give me some pointers, I ...
1
vote
1answer
98 views

DNSSEC - How many DS records are ordinary?

I thought that I need two DS records to deposit at my domain registrar. But one big dns provider just gave me one DS record. Verisign DNSSEC debugger says, everything is correct. But I am confused, ...
1
vote
3answers
383 views

Possible DNS hack or Unknown reason causing some users to redirect to a porn website?

I have website, which is a very popular website, but from last two weeks several customers complain to me that my site was hacked and redirected to a porn website, but whenever i check the website i ...
0
votes
0answers
107 views

Getting DNS working outside of the domain

I'm currently trying to set up a home development server (details below). Unfortunately, any time I try to access a DNS entry on a computer whose network card doesn't explicitly reference my internal ...
-1
votes
1answer
55 views

Circumvent ID10T domain parking after MyDomain software migration?

I have been a happy customer of MyDomain.com, which handles domain stuff for http://JonathansCorner.com, which is my personal site handled correctly and http://JonathanHayward.com, which is CNAMEd to ...
0
votes
1answer
89 views

Cname record to dns server

I have a nameserver of my hoster called ns1.hoster.com. I would like users of my (hosted) application to use my branded nameserver called ns1.mybrand.com. ns1.mybrand.com points to ns1.hoster.com ...
0
votes
1answer
45 views

Hosted application, DNS server setup?

Currently I'm allowing users to have an hosted application. Currently they have to point A-records to our servers (sometimes this is to hard or get's messy). I've seen other players using 2 dns ...
1
vote
1answer
353 views

What is the easist way to configure Microsoft DNS to not answer ISC.org ANY requests? [closed]

My server (Microsoft Server 2008 R2 x64) receives about an average of 20-30 ICS.org any requests (using forged source address) per second. Recursion is disabled and the answer only contains a list of ...
4
votes
1answer
99 views

What TLDs should I use for my NS records for redundancy? (DNSSEC support required)

Question As a general practice, is it a good idea to use multiple TLDs for the name servers? How should I choose between which TLD would be a good candidate for being the root server for my NS ...
3
votes
1answer
97 views

How do I avoid Lame DNS or other issues when switching between 3rd party DNS servers?

I have 800 DNS zones at many different providers, and am trying to centralize them to either UltraDNS or Dynect. Is is possible for me to configure each NS to nameserverX.MyCompany.com and avoid ...