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

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2
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1answer
23 views

Loads of outgoing udp requests to dns server?

So for some reason my machine is making tons of UDP requests on port 53 to 8.8.8.8 and 8.8.4.4 (google dns). Is there some way to find out what's causing this? We're trying to clean up traffic on our ...
8
votes
2answers
32k views

How can I set up a 'local' domain so that everyone on my local network can view a locally hosted site?

I want to set up MediaWiki on one of my home machines, and then have all requests made on the local network for 'wiki.home' or 'wiki.local' point to that box. I know that this can be done by editing ...
5
votes
3answers
5k views

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

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 ...
0
votes
1answer
29 views

Find third and n-th level domains in a network

In this page an example about how domain naming works is provided. The second-level domain is utexas.edu, then some third and fourth level domains are listed, like computerstore.utexas.edu and www....
0
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0answers
35 views

loss of Internet traffic via network security device

I can't get any Internet traffic in bridge mode. I'm using network security device named "Shield" made by Itus Networks which went out of business. The device is based on a Cavium Octeon Dual-Core ...
1
vote
0answers
23 views

WMIC Fails When Connecting to Computer with Multiple IP Addresses

I am trying to run a restart script against a list of computers, where it uses WMIC to see if users are logged in: WMIC /NODE: "workstation_name" COMPUTERSYSTEM GET USERNAME and then use psshutdown if ...
6
votes
1answer
1k views

How does Google bypass IP routing?

At the Google Public DNS Performance Benefits page, they claim In Google Public DNS, we have implemented several approaches to speeding up DNS lookup times. Some of these approaches are fairly ...
6
votes
4answers
11k views

How to secure Firefox traffic (+DNS) through SOCKS proxy under Ubuntu 10.04?

I'm using Ubuntu 10.04, and starting a SOCKS proxy with 'ssh -D', and setting Ubuntu to use it with "System -> Preferences -> Network Proxy". Firefox uses the proxy, and the proxy's IP appears when I ...
2
votes
1answer
51 views

Strange behavior on home internet

We recently had a new modem sent to us from our ISP (Armstrong). We hooked it up and tested it out and bam! We had double, almost triple the internet speed we had previously. As you could imagine, I ...
1
vote
0answers
112 views

Mail server Dns configuration

this is my question: I'm italian, i'have a local mail server and my new adsl company block 110 and 25 ports !!! I routed blocked ports from a VPS to my server by a VPN trunk without problems, but i ...
0
votes
1answer
26 views

VPN malfunction related to Antivirus

I'm running Win 7. I use TorGuard VPN. I'm connected through a wired LAN. My connection is High Speed cable and works fine. My VPN connection is normally good - maybe a second or two slower than non-...
10
votes
2answers
2k views

If I enter an IP for a website rather than the string form, does my local DNS server understand this and will I bypass the DNS process? [duplicate]

This is purely out of curiosity. But if I were to type in the IP of a website, would the request still go through the forward lookup process? If not, at what point and by which step is it realized ...
20
votes
4answers
29k views

How to do DNS through a proxy in Firefox?

I am using Firefox 3.5.7 with FoxyProxy. I have an ssh tunnel forwarding 8080 through to an HTTP proxy server on the other end. With FoxyProxy, I send work traffic direct but everything else goes ...
0
votes
1answer
35 views

Do DNS blacklists generally block entire IP C-nets?

My college just floated me a horror story regarding mail servers and DNS blacklists. (We maintain the mail servers for our company and its customers.) He said that DNS blacklists (like e.g. SORBS and ...
0
votes
0answers
26 views

Can't point Dreamhost DNS to Amazon EC2 instance

I first created a hosted zone on Amazon Route 53, and the config is as follow: example.com A 52.xx.xxx.xx example.com NS (already given) example.com SOA (already given) www.example.com CNAME example....
1
vote
2answers
14 views

DNS and Registrar

If I set up a DNS server at let's say my house, like with a Windows server. Would I be able to get a .com domain that will work with my games like Minecraft or TF2? Or do I still have to pay for a ...
-1
votes
2answers
31 views

Can a domain registrar update google's dns server?

I'm trying to host a small webserver, for personal use, from my computer.. My cheapy domain registrar allows me to specify a DNS, so was wondering if it's possible to specify google's DNS? Or does ...
0
votes
0answers
31 views

Severe internet problems

i have been having a lot of problems with my internet, the internet is by cable, and i using a motorola modem with a NETGEAR wireless router, the speed that i have is 10mbps. First, my internet ...
0
votes
0answers
27 views

Cannot connect via RDP from one remote computer but can from another remote

I want to connect to my desktop computer from my notebook when I'm at church, but I cannot. Then, from the church, I connect to other remote computer at work, and from it, remotely, I successfully ...
0
votes
0answers
19 views

DNSUnlocker ads in Firefox

I'm getting bombarded with ads in my browser "Brought to you by DNSUnlocker". This seems to only be effecting one site, and only in Firefox. The site however is a local development version of a site ...
1
vote
1answer
21 views

Lookup correct, yet no ping

I have setup a local raspberry pi to be a DNS server for the office. It worked (almost) perfectly, until we moved down a floor in the office. The firewall and setup for the network is exactly the ...
0
votes
1answer
33 views

Azure dns does not resolve

I have started building a small application in an Azure VM. I want the VM to host a website which will be working as a portfolio. The thing is - neither the IP nor the DNS given by Azure resolve in a ...
0
votes
0answers
51 views

How to check if my ISP is changing in any way a request to Google's DNS?

The problem is that superuser.com, stackexchange.com and many other sites didn't work. When I was debugging the problem, I tried nslookup: user@host:~$ nslookup superuser.com 8.8.8.8 Server: 8.8....
0
votes
3answers
43 views

How to load the new website IP in Windows?

I'm trying to access a website but I can not make my computer or router to recognize the new IP address. Previously, it took little time for this to happen but lately I'm waiting up to 24 hours. How ...
0
votes
1answer
62 views

Dynamically resolve hostname to multiple, prioritized IPs

I have a linux server connected to a VPN. At home, I use the same VPN on my laptop, while connected to the server directly through a wireless router. To do this, I have two entries in my /etc/hosts ...
2
votes
1answer
2k views

Why do I have to use Google DNS on Home Router (CenturyLink)

I have a CenturyLink DDR2200, working with my PrismTV (same a U-Verse, but it's IPTV). For some reason, to use Apple's iMessage or FaceTime, I have to go into the device settings and change the DNS ...
2
votes
1answer
1k views

What DNS is my Powerdns recursor using?

I just setup a powerdns recursor under a clean Ubuntu 12.04 server. I didn't notice any difference in query times (using dig) so I looked at my /etc/resolv.conf file. I left nameserver=127.0.0.1 but ...
6
votes
3answers
5k views

Flush Chrome and Firefox DNS cache from command line?

Occasionally, I need to do a scorched Earth cleansing of my local DNS cachi. The most common scenario for this was that I was using OpenDNS, and when a name would fail to resolve (it was a hostname ...
0
votes
1answer
28 views

Weird Internet Connection Issue

I'm experiencing internet issues all day with the following details: Skype works but can't log in (login probably requires dns). RDP connection to a server worked normally, but pinging my public ip ...
0
votes
1answer
24 views

Why update my domain's name servers to match the host?

I have a dedicated server with a static IP from "Company A" that I use to host my websites. All of the domains are registered and managed by "Company B". All I've ever done is update the DNS records (...
0
votes
0answers
47 views

Windows 7 svchost.exe publisher changing

I use GlassWire network monitor, and i saw some time ago that my svchost process is change his publisher and signification, and this can happend couple times per day. But when I change my DNS settings ...
-1
votes
1answer
270 views

Site can't be Reached

I was just working hard on my Wordpress website. Its URL is http://blogani.com/ I logged off for days to do some work at home, and I leave to work on my website. After 2 or 3 days when I come to ...
0
votes
1answer
123 views

Open VPN Android/IOS client does not route traffic

I have open vpn server running on a raspberrypi with debian jessie. And it works fine with the open vpn client for windows. But the same ovpn file configuration that works for windows 7 does not seem ...
0
votes
0answers
50 views

Windows 7 DNS lookups failing and fixing themselves

I have one user who is sporadically unable to complete internal DNS queries and the problem fixes itself within 2-10 minutes and this problem has been lingering on for a couple months. I haven't been ...
0
votes
1answer
33 views

why function “host” gives different results when using IP instead of domain name?

I'm learning DNS, and when using the "host" bash function on Kali, i get different results according that i give the IP adress or its domain name equivalent: host -t ns axis.com => 81.68.60.195....
13
votes
3answers
5k 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 ...
0
votes
0answers
3k views

When on VPN, can't load any sites that belong to Google

I work from home and I VPN into the office. We are a remote team all over the country and we use Google Hangouts to video conference. After I VPN, I then RDP onto my desktop which is a physical ...
0
votes
0answers
15 views

UDP fails horribly after waking from sleep (and maybe without sleep too)

We've got a PC running Windows 7 Home Premium that fails in a rather odd way after waking from sleep (and possibly other times as well, we haven't been keeping detailed records). The most obvious ...
0
votes
1answer
23 views

Not able to block some websites using /etc/hosts

I want to block social media websites on my computer so that I can avoid distractions and work in peace. One solution I came across was to modify the /etc/hosts file to point to localhost, so I tried ...
0
votes
0answers
53 views

Can't open non-https sites. Connection timeout error in browser

Connecting to any http site results into - This site can’t be reached mangapanda.com took too long to respond. ERR_CONNECTION_TIMED_OUT HTTPS links work fine. OS - Windows 8 ...
2
votes
2answers
4k views

How to display DNS cache without using ipconfig?

I am having a problem trying to get the DNS cache without using ipconfig. I am unable to use the ipconfig tool and was looking for an alternative command line tool to display the DNS cache, just like ...
0
votes
2answers
21 views

Configuring DNS to resolve root remotely and subdomain locally

Let's say I own the domain example.com, and have a website hosted on an external server at http://example.com, which is also accessible from http://www.example.com. I want to run my local OwnCloud ...
0
votes
0answers
123 views

Bypass ISP DNS hijacking with OpenWRT DNSMasq

So my ISP is blocking some site left and right, changing the DNS manually is not working due to Transparent DNS Proxy. The workaround is possible by installing DNSCrypt in my computer, however not ...
8
votes
3answers
2k views

In Google Apps, is there a way to completely hide the fact that you're using Google? [closed]

If I have a domain in Google Apps: http://mydomain.com If I host this under Google Apps, I can have my documents, calendar, and mail at sub-domains: https://docs.mydomain.com https://calendar....
0
votes
1answer
14 views

DNS reverse resolution

I'm learning DNS and I have a question about reverse resolution. On Wikipedia french version it's said that if client A has 192.168.0.0/25 and client B has 192.168.0.128/25 then to resolve an IP from ...
0
votes
0answers
81 views

How do I disable a router-assigned IPv6 DNS server?

I am using dnsmasq on a network as a DHCP and DNS server. The DNS service is required in order to resolve names of hosts internal to the network. However, when interfaces supporting IPv6 configure ...
0
votes
0answers
42 views

dns behavior on home network

I set up bind on 192.168.0.1 machine. Also, I have subscribed to a domain service, so I use mydomain.net (sanitized name) for the FQDN in my home network. When I do an $ nslookup "name of 192.168.0....
0
votes
0answers
65 views

Netgear router DNS issues, config page inaccessible

I have a netgear WNDR4500v2 router, which for the last several months has been having strange DNS-related(?) issues. For several months, routerlogin.net and http://192.168.1.1 (the current gateway) ...
1
vote
2answers
26 views

Are name server's data public, and how to retrieve them if they are?

Knowing the IP of a name server, is it possible to retrieve the "associations" that this server does between numerical IPs and domain names? For example, a name server who would manage the domain ...
0
votes
1answer
42 views

Linksys WRT1900AC custom domain routing

Can I configured on the router so that domain-abc.com maps to a designated public IP? Currently I can do it by configuring /etc/hosts to map the domain to any public IP on my workstation. However, I ...