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

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How to Diagnose Firefox DNS Issues

I'm currently running Firefox 34.0 and Chrome 39.0 on Ubuntu 14.04. Firefox is presenting with extremely slow DNS look-ups that aren't occurring in Chrome. In order to repro, I've shut down both ...
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2answers
63 views

Reverse DNS Zone not working properly BIND9

I am using the 10.0.0.x scheme for my LAN. I have a Raspberry Pi that hosts certain services, including DNS. I am running into a problem with what I think is my reverse zone. The RPI is on ...
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Connect router remotely from anywhere

I'm using tp link WR1042ND wireless router and I was wondering If I can login to my router from anywhere through internet even though don't have an public ip which is needed. Is there any way ...
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31 views

DD-WRT sends itself as the DNS server to DHC clients

I'm using DD-WRT on my router (version DD-WRT v24-sp2 (12/11/14) mega). WAN is configured to have static IP and LAN is configured to have a DHCP server provide addresses/DNS, etc to clients. All of ...
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33 views

DNS options windows 7 aren't saved?

I'm trying to use a free DNS (such as Google's: 8.8.8.8 / 8.8.4.4) by typing this in thoses options: But when I click on "validate settings upon exit" and "ok", the network diagnostic tool from ...
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39 views

DNS config for NAT with BIND

Over the past days, i installed CentOS on a computer that I'm using to mess around with system admin related tasks. What im doing is, I'm basically making this computer into a "super router" as i like ...
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24k 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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25 views

Missing DNS configuration adhoc or offline

I have dnsmasq installed locally on OS X Yosemite. Everything works fine while I'm connected to the internet via wifi. However when I go offline or create an adhoc network, I lose my DNS settings: ...
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37 views

bash script processing files with bad characters

I received a zip file with a folder structure that include parenthesis. I've worked through two processes at the cli and now merge them into a script The first searches through the file structure for ...
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37 views

cant ping specific device

i have these nodes on the same network Sasmung GT-S5300 192.168.12.38 Asus Zenfone 5 192.168.12.37 pc(windows 7) 192.168.12.36 i tried to access my pc with my samsung through web browser, and ...
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297 views

Your computer appears to be correctly configured, but the device or resource (DNS server) is not responding" error message in Windows 7

Windows 7Pro x64 8 GB RAM I have: UNplugged my cable router and wireless router, plugged back in flushed DNS, Register DNS, release IP, renew IP Tried assigning a static address using googles DNS ...
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35 views

Vigor router not passing netbios request

A client has decided to change ISP. The new provider has supplied a Vigor 2830 which I am failing to configure correctly to replace the existing router (Thomson 585). A Dell 2800 running Ubuntu 14 is ...
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1answer
25 views

Testing DNS truncated queries over TCP with dig

I want to test if my network supports EDNS0. It means that if the record is bigger than 512byte, the DNS will be over TCP. It will ne truncated at firts using UDP ,the it willbe over tcp. I'm using ...
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1answer
33 views

How to set DNS entry with no domain in local network?

I would like to refer local network computers with short DNS names, without full multilevel path. What is required for it? Probably I need to know terminology or something. I wish to configure both ...
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71 views

Selective ping error

As you see below some sites do load and ping successfully others has to be opened using proxy such as "filterbypass" Would this be routing problem or the DNS resolver/ firewall behind ...
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1answer
222 views

Cisco DDNS update to DNS-O-Matic returns OpenDNS Page Not Found

I have a Cisco 857 router which I am trying to configure OpenDNS on. DDNS over https is a bit awkward on this router as it doesn't easily support HTTPS, so directly updating OpenDNS isn't a good ...
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1k views

Setting up a DNS server

My dad is currently using a VPN into my server (running Windows Home Server 2011) so that he can access iPlayer from Portugal. He's been looking at Netflix and while I have 100mb internet, I'd rather ...
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34 views

Chromebook ERR_NAME_RESOLUTION_FAILED error

I have seen answers on similar issues for Windows, but no solution for Chromebook which is were the issue is occurring. The error will popup every now and again and then disappear after a while and ...
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1answer
49 views

How do I find the source of my DNS errors?

I have a home network with a cable modem, wireless router, several switches and powerline adapters all connected with cat5. When web browsing, I am regularly getting DNS timeouts (1-2 every 10 ...
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1answer
28 views

Windows 7 with two network connections needs to access specific host by name on specific connection

I'm trying to reach the web server on a host on my local subnet that has an IP address on each of two network connections. When I am using only my local office connection, my request (using the host ...
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1answer
230 views

Using dnsmasq to address machines by name and resolve external hostnames

I'm having some trouble with my dnsmasq setup. All I want it to do is resolve certain hostnames to certain ip addresses for any machine on my network. More specifically, I'm trying to enable all ...
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78 views

Why does nslookup give me NXDOMAIN in this case?

I'm configuring a DNS in Fedora. I have the zone file: $TTL 86400 $ORIGIN example.com. @ IN SOA ns.example.com. root.example.com( 2013121201 ;Serial 28800 ;Refresh 15 ...
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6k views

Windows keeps using a preferred DNS server?

I have trouble using Panera WiFi, and I finally tracked down the problem: Every time I reboot, Windows resets my TCP/IP settings for my wireless adapter to use a specific DNS server, instead of ...
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1answer
48 views

How to configure apache with domain name in raspberry pi

i have a raspberry pi(IP: 192.168.1.135) connected to my PC(IP: 192.168.1.100) via LAN port. PC is connected to a router(IP: 12.168.1.1). i got raspberry to get connected to router, i bridged the ...
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2answers
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Why does nslookup for espn.com give an IP that goes to go.com?

If I do an nslookup on espn.com, an IP is returned 199.181.132.250. When I put this value in the browser I get go.com. If I had add a 'Host header to the request, I still end up on go.com. What am I ...
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3answers
136 views

Windows 8 DNS lookup fails but wireshark shows that the query completes

I'm having a very weird problem. My dad recently purchased a new wireless router. We have at least 8 devices connected wirelessly, and all of them continued working just as they had before, except ...
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23 views

How do I start DNS console?

According to a blog post (it says: "Open DNS Manager by clicking Start, pointing to Administrative Tools, and then clicking DNS") I'm trying to follow there should be some DNS thingy to pick. However, ...
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51 views

Hyper-V network lab internet connectivity issue

I am newbie and trying to setup Home Network lab. I have successfully setup AD DS, DNS and DHCP servers on Windows 2012 server R2 however internet connection is not working on VHD machines. Need your ...
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Mac OS 10.10 ignoring Openvpn DNS settings

Running Mac OS 10.10. Setup a openvpn connection and put the DNS servers to be used with the VPN connection under VPN Profile->Advanced->DNS. When I connect, it only uses the the DNS server pulled ...
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30 views

How do I utilize hostnames on a local server?

I'm familiar with buying hostnames/domains and vaguely familiar with DNS servers for resolving domains to IP addresses, but, for a home solution I know absolutely nothing. Let's say I want to host a ...
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2k views

Cisco AnyConnect vpn stops internet connection in Windows 8

I have a VPN set up through Cisco AnyConnect 3.1.04072 on a Windows 8 laptop. I can connect to the vpn, but as soon as I do, all internet traffic stops. I've been researching for days now and I ...
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38 views

The first visit to any site takes forever to load

I suspect I might have a DNS problem. Whenever I try to access any website at all, it will take dozens of seconds to load in the first time. Any subsequent access will load just fine. If I try to ...
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loading webpages hosted on home server randomly fails

I have a server that is running from my home on a LAMP stack. I have a few sites that work fine when I am on my local network but when I try to access them from outside the local network they randomly ...
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1answer
12 views

Solaris BIND / VI - how to view special characters in a zone file?

I'm having some issues with a new zone file and I recall previously that I was prone to using some special characters somewhere that confused BIND. Is anyone aware of a command that would show all ...
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29 views

No internet connection, Win7, DNS DOES resolve

I just installed a fresh new copy of Win 7 64-bit. My ipconfig says that my dns do resolve, and everything looks as it should. Device Manager tells me that my network drivers are fine, and working as ...
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106 views

I get errors including “apache config test fails, aborting” when trying to create a subdomain. What do I do?

I just made a change to the httpd.conf file. The reason I did this is I'm trying to set up a subdomain. I now would like to restart apache2, but when I try to restart I run into a slew of errors. ...
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29 views

How to proxy all outbound HTTP traffic in an adhoc network

I have a network that I'm trying to set up in the following manor (seems odd on the surface but it's what I'm restricted with): Client A (os x yosemite) sends HTTP request to server D Client A's ...
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1answer
16 views

accessing local host from another computer

This is the first time I am trying to host at IAAS level. I have installed Win 8 on the VM and installed XAMP. I can access local host on the same VM. But how do I access the local host from another ...
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2answers
49 views

What IP address is DNS service returning?

Supposing I have a server on a network that has a private IP address, and somewhere on a another network is a client that has the same private IP address. It is possible beaucase they are on different ...
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71 views

DD-WRT to push alternate Name Servers to clients over DHCP

In order for WiFi DHCP clients to use directly 8.8.8.8 and 8.8.4.4 as name servers, DD-WRT has been configured as follow add dhcp-option=6,8.8.8.8,8.8.4.4 in /etc/dnsmasq.conf (reboot) since that ...
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1answer
43 views

Why is my personal web site getting visitors at mysterious URLs? [closed]

I recently made an update to my site's visitor logging and when checking that it was working properly noticed that I'm getting visitors at URLs that do not belong to me. I was surprised to even see ...
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1answer
82 views

openvpn client connects to server but name resolution does not work

Here is my (x)ubuntu version: root@ubuntu:~# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty ...
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3answers
13k views

How to set custom DNS server for Chrome browser?

I have local DNS server thats resolve all urls *.domain.tld to 127.0.0.1. Also I have the production server with same address *.domain.tld. They have the same names, because subdomains are interact ...
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59 views

Resolving DNS lookup when using a proxy on a adhoc network

I have a network with the following setup: Box A(client) has a local HTTP/S proxy running Box A is set to use 0.0.0.0:7777 as a HTTP/S proxy The proxy service forwards all traffic to box B(proxy) ...
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1answer
3k views

Windows 7 can't ping a Linux server via its hostname (IP address works, virtual Linux machine works)

I'm trying to set up a home Linux server (running Arch Linux ARM on a Raspberry Pi), and I can't seem to get my Windows desktop machine to recognize it via hostname (in this case "whitey"). I have it ...
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1answer
105 views

Is 'home' a special hostname on Windows 7?

My local network is managed by a router running DD-WRT which assigns a DNS hostname to each machine on the network that I've selected. For example, "laser" maps to a 192.168.1.7 (a laser printer) and ...
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4answers
4k views

Services that just return your public IP as text [closed]

I'm writing a script that does dynamic DNS updates for me, but my server is behind a router, and so I need to use a web service to determine my public IP. So far I've found this one which returns ...
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10 views

Setting a security descriptor for a directory partition in AD

We've recently migrated our domain controller from Samba 4 based setup to a Windows 2008 R2 server and there seems to be a problem with our DNS server. We're not able to add any CNAME/A/AAA entries to ...
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4answers
5k views

Browser redirects almost all of links to Adfoc.us

Since yesterday, most of users in our region and as far as I know, many other peoples received a lot of link redirection. most of these redirection are going to adfoc.us website. this redirection ...
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How do I find all known IPs for a given domain in Linux?

I am a developer on a project that uses amazon servers for testing. I am switching from using FoxyProxy to routing with iptables because it is more convenient. The trouble I ran into is that when ...