Domain Name System for computers, services, or any resource connected to the Internet. It translates domain names meaningful to humans into the numerical identifiers associated with networking equipment for the purpose of locating and addressing these devices worldwide.

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OpenVPN nameservers ignored by NetworkManager or whatever [on hold]

I've followed a dozen suggestions from different websites and nothing helps. I'm using Elementary OS (based on Ubuntu 12.04). I use OpenVPN client to connect to an office network. The company I work ...
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22 views

Repository MTR strange behaviour:

Can someone explain this MTR readings or that may be a DNS resolver issue. have tried many things: such as changing dns to popular public ones with no changes First issue: MTR GUI does not show the ...
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0answers
28 views

Ubuntu server DNS issue [on hold]

Hello guys I seem to be having issues with my Ubuntu server not being able to sudo apt-get update that it does not pick up on the update files. I have changed the DNS to Google's which allows me to ...
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0answers
10 views

Unable to connect to Photon plus Huawei in Ubuntu 14.04 after update

I have been unable to connect to internet using my photon plus Huawei device. I had been using this device earlier without any issues. Maybe some system update or system shutdown without disconnecting ...
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0answers
32 views

Ubuntu shows “resolving host” but Android is able to instantly access internet on the same network

I am connected to my home wifi network. I have this constant problem with my laptop which runs Ubuntu 14.04 currently. Very often, while accessing the internet, I can see the web pages timing out or ...
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0answers
10 views

isc-dhcp-server: dhcp dynamically update dns records

i'm trying to dynamically update DNS records when DHCP give out addresses. but even though I have specified allow-update with a key in /etc/bind/named.conf.local and specified the same key in ...
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1answer
29 views

subdomains on apache with external dns

First I will describe my setup, after that my problem and last my question for solution. I have an external DNS server solution (not using DNS on my UBUNTU) where I control all my primary DNS etc. I ...
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2answers
45 views

DNS server with Bind9: can't resolve DNS records in forward and reverse zone files

Hello everyone :) I have tried to set up my own DNS server with bind9, but although I have tried several tutorials, I still get the same error. Starting bind9 works fine but when I use nslookup or dig ...
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0answers
15 views

Dnsmasq and Iptables for routing

I'm using a Raspberry Pi with two ethernet ports as a router. The network looks like this. "Internet" <--(…)--> Fritz!Box <--(172.16.x.y)--> [eth1, dhcp] Raspberry Pi [eth0, static] ...
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1answer
36k views

How to Disable External DNS recursion?

I know that to disable recursive queries in BIND, I need add the following lines to the options section of /etc/bind/named.conf.options allow-transfer {"none";}; allow-recursion {"none";}; recursion ...
1
vote
1answer
28 views

How to set forwarders on MAAS Bind9 + openstack-install

I'm installing Openstack using openstack-install (MAAS+juju+landscape), and I got stuck on the first bootstrap forever. After some troubleshooting I realize the problem was DNS. On the bootstrap ...
2
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0answers
28 views

Beaglebone black with Debian OS on Ubuntu 14.04 in Virtualbox VM

I am using the Beaglebone Black for the first time. It has the Debian 7.4 OS and I'm using Ubunbtu 14.04 installed in Virtualbox. I'm trying to install Python IO libraries but I'm getting the Can't ...
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2answers
52 views

I deleted my resolv.conf how do I get it back or how do I create it again

I was changing my DHCP IP address to static on my server by sudo gedit /etc/network/interfaces and managed to edit the file and save it. I then went to change resolv.conf but then it went blank and ...
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2answers
3k views

Why do none of my local servers resolve?

When I try to ping or browse using a web browser certain domains names that we host on our local network, it does not work. Yet, dig and nslookup correctly return their details. What do I need to do ...
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0answers
35 views

How do I fix a DNS leak?

Now that I'm using a VPN 24/7, I've been looking to enhance my privacy further and discovered the phenomenon called "VPN leaks"... Further investigation has revealed that my computer does in fact, ...
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0answers
9 views

Unbound DNS queries sometime time out

I've just set up my own Unbound (1.4.22-1ubuntu4.14.04.1) local DNS resolver on an Ubuntu 14.04.2 LTS installation. I've re-used an Unbound config file I used in the past and it was perfectly working. ...
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3answers
3k views

override dns nameserver [duplicate]

i wish to set higher priority for my dns nameservers, or override the ones that are being set by the dhcp server. no matter which approach i took, nslookup never displays the right dns nameserver. ...
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0answers
15 views

Implement Catch-all HTTP Server using DNSMASQ

Ubuntu 14.04 | dnsmasq My goal is to setup a catch-all HTTP server using an Ubuntu 14.04 workstation as DNS resolver. I have installed dnsmasq on my Ubuntu 14.04 OS using apt-get install dnsmasq and ...
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0answers
42 views

Bind9 DNS:Configure A Local Forwarding DNS Server

i've a small local network Containing(for example): A Ubuntu 14.04 PC As a DNS Server[192.168.1.10] chat.Server1 on 192.168.1.11 chat.Server2 on 192.168.1.12 chat.Server3 on 192.168.1.13 And I ...
7
votes
3answers
6k views

docker.io DNS doesn't work, it's trying to use 8.8.8.8

I have a new Ubuntu 14.04 install, and want to use Docker to run my old stuff that needs 12.04. DNS inside Docker doesn't work. My laptop's resolv.conf looks like: nameserver 127.0.0.1 Which ...
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0answers
16 views

Query the DNS server(s) that are used for VPN

Is there a robust way to show which DNS servers are currently used by dnsmasq? The suggested Command-line to list DNS servers doesn't seem to help when VPN is active, and searching in syslog is not ...
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votes
0answers
19 views

I have problem in my dns

I have problem in my DNS server some time it;s can't resolve the query My server request query form my adsl user some times he can't resolve the page and it must reload the page to open Can any ...
8
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5answers
26k views

How to view the DNS address assigned by DHCP?

How to view the DNS address assigned by DHCP? ifconfig can not show it. $ ifconfig -a eth0 Link encap:Ethernet HWaddr 90:e6:ba:22:6a:f2 inet addr:192.168.1.111 Bcast:192.168.1.255 ...
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1answer
27 views

Sporadically unable to connect to ubuntu 14.04 LTS server using domain name

I use a DDNS which is automatically updated by my router every time a new IP address is assigned to the domain name. The no-ip domain name is pointing to the correct IP address. Currently I am ...
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0answers
16 views

Unable to receive mail through squirrelmail on ubuntu LTS 12.04 server

I've been setting up an ubuntu 12.04 LTS web server using the howtoforge guide here. So far everything is working correctly except for receiving emails through Squirrelmail and Dovecot. None of my ...
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1answer
19 views

Setting up DNS on JUJU for local

So I have found Juju, which looks amazing! However a huge blocker for me is not knowing how to setup DNS. I have a dedicated server running Ubuntu 14.04LTS with JuJu installed, running local ...
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1answer
35 views

Juju charm, what to do when you can't reach archive.ubuntu.com?

I'm writing a Juju Charm for StrongSwan to auto-configure a VPN server. One of the things I noticed with the CharmHelpers code is that the apt_update() function only checks for DPKG lock. I want to ...
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1answer
18 views

Set up A- and PTR-records automatically

is there a way to make the DNS or DHCP server to set up the A-record and PTR-record for each IP in a subnet? instead of adding one by one? thanks
3
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1answer
4k views

Using Ubuntu 14.04 as router with iptables, clients can't go online. Probably DNS issue, iptables setting needed

CORRECTION 3: SOLVED! I needed to add the the official DNS server of my departement's VLAN as DNS to the clients. I've read through a large number of posts about iptables issues when using Linux as ...
0
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1answer
29 views

Lookup DNS-names outside domain

how do I configure my DNS server so users can lookup the DNS names outside my domain Linux1.ok? this should be done recursively. thanks
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0answers
17 views

Creating Mediawiki issue

Im right right now in the middle of creating Mediawiki on Ubuntu 12.04.4 LTS for client and i'm having some troubles doing that. I managed to establish accessible Mediawiki instance in apache but i ...
0
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1answer
15 views

Name lookup from secondary DNS server, if primary returns a non-reachable IP address

My Corporate Mail server(housed at HQ) is accessible to my zonal office(geographically located in a different state) via a point-to-point leased line on a LAN IP address say 192.168.1.100. ...
2
votes
1answer
153 views

Cant access apache webserver outside/inside local network

I apologize in advance if I use any technical words in the wrong way. I'm still a newbie to Linux/networking Ive been trying to figure out this problem for over a week and none of the related ...
3
votes
1answer
140 views

DNS Resolution Problem on Ubuntu 14.4 LTS

I have a Windows 8 host machine running VirtualBox and a running a Ubuntu 14.4 LTS Virtual Machine. In the Ubuntu VM, I can access and resolve DNS for every external site (Ex.: www.google.com) and I ...
2
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3answers
3k views

How can I connect to remote windows domain knowing gateway hostname and domain name?

I have received credentials for my University's network machine (Ubuntu yay!) that I have ssh access to. I would like to connect to it but first I need to connect through a gateway that I have ...
0
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0answers
42 views

can't uninstall unotelly - dns problem

Hi I have installed unotelly using these suggested procedure: Terminal Method 1 - Easy Way using our Preconfigured File: Open Terminal Enter wget www.unotelly.com/downloads/resolv.conf.ubuntu Enter ...
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votes
1answer
26 views

Set DNS settings Ubuntu Touch

Is there a way to change the DNS settings in Ubuntu Touch? If it's possible, is it possible to use other DNS settings when connected via 3G than the settings used when connected via WIFI? I cannot ...
0
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1answer
3k views

dns configuration problem bind9

Following is my bind9 configuration the domain I want to configure is home.lan it is home network /etc/bind/named.conf.local is following zone "home.lan" IN { type master; file ...
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4answers
66 views

Ubuntu 14.04 dns resolution stopped working after minor update

Yesterday the internet connection was working correctly and I accepted software updates.Today I can reach the default gateway, the dns servers (8.8.8.8) but no internet address such as www.google.com ...
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3answers
4k views

No internet connection (DNS server address is Router address)

My internet connection in Ubuntu 13.10 doesn't work. I can use IP addresses to open websites but not URLs. The DNS server that I connect to is the IP address of my Router. When I connect to the VPN of ...
1
vote
1answer
51 views

Configure DNS for subnet [duplicate]

I have configured my own DNS server and want to make it possible for everyone on the subnet to lookup each other. How do I do that?
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4answers
4k views

WIreless connects but Internet stops working on Ubuntu 12.04 64 Bit and Broadcom 4313

I'm running Ubuntu 12.04 64 Bit on a HP Pavilion dm4. It has a Broadcom 4313 Wireless Adapter and a Realtek RTL8168D/8111D Ethernet Adapter. I haven't been able to get consistent internet access from ...
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0answers
22 views

Check if DNS-server is correct configured

how do I check if my DNS server is correctly configured? when I do this command without editing /etc/resolv.conf to DNS server's IP host 192.168.0.X I get host X.0.168.192.in-addr.arpa not found: ...
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vote
1answer
56 views

ISC DHCP Different DNS Server For Different Client OS

Is it possible to configure isc-dhcp in a way that it can send different DNS server addresses to different clients in the network? Let say I have some Macs, PCs with Linux and Windows in the ...
7
votes
4answers
22k views

Internet over USB on BeagleBone Black

I've recently installed Ubuntu 13.04 on the Beagle Bone Black. This image: https://rcn-ee.net/deb/flasher/raring/BBB-eMMC-flasher-ubuntu-13.04-2013-10-08.img.xz This microcontroller allows to ...
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0answers
21 views

Having trouble getting duckdns to work in 14.04.2 LTS

I'm trying to get DNS working for my odroid-C1 Ubuntu but running into this weird problem, error message saying symbol lookup error but my libjavascriptcoregtk-3.0 package is the newest and greatest. ...
0
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1answer
32 views

Replacing /etc/resolv.conf

I'm running Ubuntu 14.04 alongside windows 8.1. But in no way could I make the Internet work. I messed up trying to replace the /etc/resolv.conf file and it got removed... I would like to download it ...
0
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1answer
61 views

DNS broken when logged in via XRDP?

I have an install of Ubuntu 12.04LTS x64 and log into it via XRDP from a Windows PC using Remote Desktop Connection. My problem is that when I try to install software usint package manager or ...
1
vote
2answers
6k views

SSH: Could not resolve hostname user@host: Name or service not known with my connection

I have a problem to connect a server using ssh. I got the following error message: ssh user@host SSH: Could not resolve hostname user@host: Name or service not known with my connection Also, if ...
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0answers
39 views

Ubuntu 14.04 no DNS resolv

In my desktop pc with dual boot (Ubuntu 10.04 and Ubuntu 14.04) with the same Network configuration I have access to the internet running 10.04 and after the last update in 14.04, NetwokrManager stop ...