Translates domain names to IP addresses. DNS stands for Domain Name System.

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Connection interrupted or reset for certain websites only

I think I should start by saying I only encounter this with one website http://reddit.com on all browsers. The problem is whenever I try to load that website it won't load 95% of the time and give me ...
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2answers
75 views

Are MX and CNAME mutually exclusive?

I have a domain, and that domain uses another one of my domains to handle mail. I'm having trouble getting it configured in a way to make all mail clients play well with my domains. In terms of foo ...
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39 views

Weird phenomenon about my PC's primary & secondary DNS speed

I use DNS Jumper to test the speed of various DNS and this is the result: (A) Currently Using Primary: 203.144.207.29 (39 ms) Secondary: 8.8.4.4 (71 ms) (B) US Open DNS Primary: 208.67.220.220 ...
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1answer
366 views

Resetting gone wrong

I have reset my linksys router, and now my internet is horribly slow. please check details from command prompt below and tell me what's wrong. Thanks. Microsoft Windows [Version 6.1.7601] ...
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1answer
985 views

How to configure a 10. network in bind? (PTR)

I'm trying to configure a zone for a 10.0.1.0/24 network. I have rfc1918 zones defined, but then I commented out 10.in-addr.arpa network, since I'm neading it. I then configured a db.1.0.10 file ...
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65 views

The DNS server isn't responding

I'm having connectivity issues. I randomly become unable to use my connection. When I try to use the Windows troubleshooting tool, I get the following message: I'm using an Asus router. There are ...
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3answers
3k views

How to know if your computer is hit by a dnschanger virus?

The Federal Bureau of Investigation (FBI) is on the final stage of its Operation Ghost Click, which strikes against the menace of the DNSChanger virus and trojan. Infected PCs running the ...
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1answer
443 views

how to clear Window DNS cache

My router reset and my ip address changed. DynDNS was updated with the new address automatically. But windows still pings the old address. How do I clear the DNS cache in Windows Vista?
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2answers
583 views

How can I store DNS cache in case the DNS server goes down?

I'm using OpenDNS's DNS servers. Today, it went down for half an hour. I'm wondering if I can store a cached copy of the DNS records of the websites that I visit often. Google Chrome does this ...
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2answers
48k views

ERR_NAME_NOT_RESOLVED in Chrome on a single site

Our internet connection at the office went down for a bit yesterday, and now Chrome can't find youtube.com. I get the ERR_NAME_NOT_RESOLVED error, even though the site loads perfectly fine in other ...
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2answers
4k views

DNS resolution Issue nslookup works, but web/ping doesn't

I've got a computer having DNS problems with one address only, "microsoftonline.com". Ping doesnt resolve IP but nslookup does correctly. It works from other machines. It is WinXP with no proxies I ...
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1answer
1k views

Windows 8 Chrome DNS issue

Sometimes when I want to visit random site I get "The server at www.something.here can't be found, because the DNS lookup failed" which looks pretty standard. When I go to ...
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1answer
30k views

How do I set DNS Servers on Raspberry Pi?

I want my Raspberry Pi to use OpenDNS to resolve domain names. How can I modify this setting?
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1answer
1k views

Access a Mac via hostname.local from a Windows PC

I'm the only Windows user at my workplace full of Macs. Of course, being the only person with a different setup, I'm often left to do my own IT troubleshooting. The issue I have is that everyone's ...
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4answers
9k views

DNS lookup fails but nslookup works

I have DNS lookup problems on my internal network. I'm using an internal DNS server with the IP 192.168.1.254. If I use nslookup everything works like it should: >hawk:~ user$ nslookup ...
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6answers
4k views

DNS responding only to nslookup in Windows 7

I have an interesting DNS issue in AD (2008R2) which I can't find a way to debug. Mainly if from commandline I try ping <machinename> then I get the reply that the hostr isn't found. But when I ...
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4answers
7k views

Problem with Macbook air automatically not acquiring free wifi network dns or router address

I have this problem when my macbook air sometimes does not connect to free wifi hotspots. When the problem happens and I try to run the diagnostics, it normally gets to yellow network settings tab. It ...
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1answer
336 views

How exactly does DNS work?

I'm learning pentesting from books. So far I thought I know about DNS but now I'm completely lost and confused. well, I know what happens when you enter domain name in your browser: Say, I've ...
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0answers
148 views

“dnsbackend unable to load module” error when configuring PowerDNS for Windows XP

I am in need of an easy to setup and free DNS server for Windows XP. I tried PowerDNS but am not able to use the bind back-end: When I put the following in the config file launch=bind I get error ...
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7answers
46k views

No internet through a web browser but Skype still works

We get our office broadband through a BT Business Broadband WiFi router. We have a mixture of macs and windows PC/laptops connecting to it at any one time. All devices are able to connect to the ...
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1answer
263 views

How to make Opera browser obey the etc/hosts file?

Current version of Opera browser doesn't obey etc/hosts file for domains outside the local network. It looks to me like it is using its own DNS resolver. For example if I create the following ...
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2answers
2k views

no internet while downloading torrents - seems dns related

I have a very peculiar problem regarding the internet connection while downloading torrents. Before you conclude that I should "reduce the # of half-open & user connections", let me say I have ...
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1answer
190 views

How do amazon EC2 instant's random DNS entry gets resolved

I am new to EC2 and please help me in understanding this better. When I created an EC2 instance it immediately got a name ec2-67-201-11-147.compute-1.amazonaws.com and I could dig them immediately. ...
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1answer
201 views

Malicious program changing my DNSs

Some weeks ago I started having problems with my internet connection, it was extremely slow and suddently some websites (specifically gmail, facebook, youtube and twitter) started failing to connect, ...
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3answers
6k views

How can I redirect a subdomain to an internal IP?

I have a FQDN let's say abc.com. with only one external IP and I use zoneedit.com ns servers. I have configured www as a CNAME of abc.com. The web server is setup with IIS on local computer. What I ...
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3answers
976 views

ad blocking host file, shared to all computers on local network

I currently update my local hosts file with advertising server domain names and direct them to nowhere. Well, almost nowhere. I point them to 127.0.0.1 and I don't have a web service running so it is ...
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2answers
861 views

Create a local DNS TLD for development

I do a lot of web dev, mainly RoR and PHP, I've got a VMs which holds my dev environments and handling multiple clients on them is a pain. With PHP you just create a subdir, but with RoR it's a little ...
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1answer
706 views

PHP/cURL/Fedora issues resolving hostname possibly a DNS problem?

I have the following simple test script for cURL/php on a FC12/apache server that has PHP 5.3.2, cURL v7.19.7 (according to phpinfo()): $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, ...
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1answer
2k views

Where did this incorrect cached DNS lookup come from?

Somehow, I've been having a chronic issue where my computer will get an invalid DNS lookup in its cache for either of the two Exchange servers I use from Mail.app. My workplace runs one of the ...
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2answers
393 views

Connect to host by name using a Linksys wrt54g as my router and dhcp server

I have a Linksys WRT54G router at my house. How do I enable/perform connect-by-name on my network (like "kitchen" and "musicbox") on Windows XP, Linux (Ubuntu and CentOS), and Mac clients? Sometimes ...
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5answers
7k views

Bypassing Router's DNS Settings

Is there a way to bypass my ISP provided CPE/router's DNS settings? I'd like to use OpenDNS but I am unable to access the administrator acount of the CPE. I tried logging in using the default ...
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17 views

point multiple ip address to hosting

I have centos server, earlier it had 1 ip [ a.b.c.d ] (external ip , eg., 141.101.114.59). Now, I bought 2 additional ip [b.c.d.e , f.g.h.i] (external ip , e.g, 190.93.244.58 , 130.93.245.8 ). I have ...
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1answer
37 views

My external IP address appears to change automatically [duplicate]

I am trying to use the no-IP service to get a domain name for my dynamic ip address. I use some tools on line to detect my IP, and they tell me that my IP address is 88.207.251.1. So I bind this IP ...
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2answers
30 views

Overriding DNS in peer-peer fashion

I frequently have the problem that I am on a local network where DNS is done by routers I have no control over. I often want to send files or data between two of my devices on the same subnet, but ...
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DNSSEC- Client software

I'm interested in running DNSSEC, not sure how this works. Does DNSSEC need to be supported both on the client and server. I currently have DNSSEC on my domain hosting site and the VPS server but if ...
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1answer
208 views

For my own DNS server, “dig … @ip-address” works, but “dig … @domainname” does not

I've recently begun virtualizing servers - one of which is a DNS server running BIND 9 on Debian 7. My DHCP server correctly issues it as the primary DNS for the network, but I get the following ...
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3answers
621 views

Easy way to view a website at a different IP than associated with hostname?

Some background — WordPress is really annoying in terms of what hostname you access it from, which makes creating testing environments rather painful (That is, I could create a subdomain for staging, ...
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2answers
1k views

In OS X, how can I prepend 127.0.0.1 to the list of DNS servers obtained through DHCP?

I am trying to use dnsmasq to resolve certain known domains using its configuration, but let the rest of the requests go through to the normal DNS server assigned by DHCP. I cannot get this to work. ...
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1answer
569 views

Chromecast, Unblock-Us and Edimax BR-6478AC router

It seems that Google has hard coded the Google DNS into the Chromecast, thus making it pretty much useless for anyone outside the U.S. who wants to use it for Netflix and Hulu. I have the above ...
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1answer
1k views

Ping to dnsmasq's host resolvesto 127.0.0.1

I've just set up dnsmasq in my home lan for the first time. I got it as DHCP and DNS. Something strange is that when I ping DEV01 (which has dnsmasq) it resolves to 127.0.0.1 and I don't know why it ...
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4answers
4k views

Disable access to TCP/IP and DNS Network Settings on Windows 7

here's my question: i have a desktop pc Windows 7 powered with two accounts with administrative rights. One of those is used by my brother. I study abroad so i need to be able to connect to my ...
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1answer
2k views

DD-WRT DNS lookup failure

I'm trying to configure a new router (a Linksys WRT160Nv3) with DD-WRT. It seems that no matter what the settings, DNS lookups fail. I can't ping anything outside my network (I get an unknown host ...
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1answer
344 views

DNS: Forward domain to another host

I was hoping some expert on here could quickly answer my question. I don't know much about DNS, so bare with me. I have a domain that is hosted with XO Communications. I want to host that domain at ...
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1answer
1k views

Is there a way to specify more than two DNS servers?

In my "Local Area Connection Properties", under IP Version 4, I can specify an IP address (or get one automatically) and specify a preferred and alternate DNS server. Is there any way to set more ...
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0answers
45 views

Cannot Access Website First Time Through Router And Later It Seems To Forget Routing Table [duplicate]

Possible Duplicate: Cannot Resolve Host Or Access Website Through Router Would be helpful to those who are willing to help with this one. I evaluated the problem and it is for computer ...
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2answers
149 views

Propagating Names for non-machine IP addresses in a home network

I have added two IP addresses in the network config of one of my PCs, and I'm using those IP addresses to host separate sites in IIS: I can browse those sites from around my network no problem by IP ...
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2answers
367 views

Bizarre DNS Issue

I've been having an intermittent issue recently on my MacBook Pro: every so often, I'll start getting bad DNS results. For example: I type in facebook.com, and another website loads up instead of ...
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3answers
1k views

Switching between DNS addresses easily

Sometimes I need to use preferred and alternate DNS server addresses, and sometimes I need Windows to obtain it automatically. The common approach to switch between those addresses is: Right click ...
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1answer
65 views

Only My Computer Won't Connect to a Specific IP

I'm having issues connecting to our Web Server IP from my computer. This seems to be isolated to my computer as I'm able to access it from every other machine I attempt just fine. By not connect, I ...
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44 views

Both Public and Private DNS not working. How make it work properly without any conflict

I setup private network so I installed DHCP in one of my server. Now my public network DNS is not working. How can I setup DNS for private network with conflict the public network DNS? DHCP Setup. ...