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.

learn more… | top users | synonyms

8
votes
3answers
235 views

Difference between Software Selection Servers

I am installing Ubuntu Server, and I want to know what is the difference between these: [ ] OpenSSH server [ ] DNS server [ ] LAMP server [ ] Mail server [ ] PostgreSQL server [ ] Print server [ ] ...
2
votes
2answers
94 views

network manager: how to stop nm updating /etc/resolv.conf

I do not want network manager to add DNS servers received from DHCP to my /etc/resolv.conf. When configuring from GUI/Connections/IPV4 and choose the method Automatic (address only) it still adds DNS ...
1
vote
2answers
65 views

Dynamic IP with static DNS

Getting a dhcp'd IP ok, but DNS is not resolving. 2 part question: using nmcli how can I see what DNS server's I am using? where do I go to configure a STATIC DNS server for a wireless interface ...
1
vote
1answer
34 views

Internet wired connection holds only few seconds/few requests before needing to call dhclient again

I have a dual boot ubuntu/windows 8, everything was working fine, suddently, after a reboot from the linux partition, the DNS resolution seems to be in trouble : I have to run dhclient before each ...
0
votes
0answers
15 views

Make Ubuntu set custom DNS for new connections by default

I am using custom DNS servers. For each new connection I have to add custom DNS servers manually. Is there a way for all new networks to have different DNS servers automatically?
1
vote
0answers
46 views

dns problem in guest after host connection to vpn

I configured linux guest in kvm runing on ubuntu14.04 host. It runs without any problem and has no issues with DNS. After connecting host to VPN (OpenVPN), guest is not resolving anything from DNS ...
2
votes
1answer
2k views

DNS_PROBE_FINISHED_BAD_CONFIG error in Ubuntu 14.04

I am running Ubuntu 14.04 LTS on my Dell M3800. I am having problems connecting to the Internet. I getDNS_PROBE_FINISHED_BAD_CONFIG in my browser when trying to navigate to any site, but I am able ...
1
vote
2answers
229 views

My wireless has intermittent DNS errors, how do I restart network-manager in 15.04?

My wireless is a bit buggy on Ubuntu, every now and then the DNS will cut out for no reason, and I'll need to run sudo restart network-manager to actually fix it. However I just upgraded to 15.04, ...
0
votes
0answers
43 views

Some pages not loading with Ubuntu 14.04 LTS and Firefox

When I use a search engine, or type an address into the address bar about half of the time I get the fail page, "Unable to connect..." If I click a link from a search page, same thing. If I try to ...
0
votes
0answers
87 views

resolver fails because of no recursion enabled on DNS server and AAAA returned?

Kubuntu (Ubuntu 14.04.2 LTS, kernel 3.13.0-48-generic) installed 2 months ago (not installed yet newest updates). I have noticed that my resolver is failing: root@arrakis:~# telnet onet.pl telnet: ...
1
vote
0answers
37 views

Bind fails with short domain name

I'm having troubles getting Bind to work with a two character long domain name. Is this a known issue? I haven't found anything related to this anywhere. I have about 50 domains up and running in my ...
1
vote
0answers
19 views

Cant send local mail by client

So I setup a DNS and Mail server, It works fine when I use the local account to send mail to each others, I use "telnet localhost smtp" to send mail or I use Thunderbird to send mail. My mail server's ...
0
votes
0answers
26 views

Need to host 30 domains, but Bind9 config info is confusing

Bringing up a new server using ubuntu 15.04, Bind9 and Apache 2.4 that needs to host 30 web sites - each with own domain name. Have configured Apache virtual hosts and all seem correct, but Bind must ...
-1
votes
2answers
25 views

Configure client-side DNS?

I have a network with 2 machines. machine A has IP 192.168.1.100 , machine B has IP 192.168.1.101. Now i want to resolve machine B IP address to test. I don't want to pass through a dns server. ...
0
votes
0answers
54 views

Wired network working but apps cannot see the DNS

I have a working network connection but none of the applications can see the Internet. Thunderbird, Ubuntu software center, chrome etc cannot connect. So I have to use microsoft windows to connect ...
0
votes
0answers
37 views

No DNS in remastered Ubuntu

I remastered a (x)ubuntu 14.04 ISO. Manually. Everthing works fine, exept I have no DNS. Is this a known but and is there a solution?
2
votes
0answers
66 views

cat: /var/lib/misc/dnsmasq.leases: No such file or directory

I've searched all over the internet, but couldn't find any answers of my problem.. I want to connect my Raspberry Pi to my laptop. But whenever i try to check the ip address of my raspberry, i get ...
1
vote
1answer
28 views

Resolve domain names in QEMU VDE setup

I have re-built QEMU with VDE support. For the uninitiated, VDE attaches a virtual switch program (vde_switch) to a TAP device which allows multiple VDE-enabled programs to utilize a single TAP ...
0
votes
1answer
54 views

How to configure postfix to not relay to local virtual domain?

I have set up a SMTP server with iRedMail on Ubuntu 14.04 LTS and everything is working smoothly. I can create new users and send e-mails. My situation however is a bit more complicated: I need this ...
0
votes
0answers
21 views

Ubuntu many USB modem DNS issue

I noticed a bizzare issue when using 2 USB modem with my UBUNTU 14.04 LTS. So, I have 2 mobile phones connected to my PC (2 USB 3G modem). When I connect and activate the first one (any one of ...
0
votes
0answers
20 views

Bind9 stops resolving

I've set up bind9 as forwarder in my VPS, but for some reason bind stops resolving every now and then. I have to do 'service bind9 restart' to get it working again. Only configuration I've done for ...
1
vote
3answers
72 views

DNS not working after upgrade from 12.04 to 14.04

I've recently upgraded my desktop from 12.04 to 14.04 and now my internet connection isn't working. I can access my router. I can go to Google by entering its IP address. My resolv.conf file: ...
0
votes
0answers
41 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 ...
1
vote
0answers
74 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 ...
1
vote
0answers
101 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] ...
1
vote
2answers
246 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 ...
2
votes
0answers
125 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 ...
1
vote
0answers
62 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 ...
0
votes
1answer
53 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 ...
0
votes
2answers
93 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 ...
0
votes
0answers
94 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. ...
0
votes
0answers
226 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, ...
1
vote
0answers
40 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 ...
0
votes
0answers
61 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 ...
1
vote
0answers
85 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 ...
0
votes
0answers
44 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 ...
0
votes
1answer
44 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 ...
1
vote
1answer
52 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 ...
0
votes
1answer
41 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
0
votes
1answer
34 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
0
votes
1answer
34 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. ...
1
vote
1answer
46 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 ...
2
votes
1answer
83 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 ...
0
votes
0answers
106 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 ...
0
votes
1answer
53 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
votes
4answers
122 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 ...
1
vote
1answer
80 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?
0
votes
0answers
42 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: ...
1
vote
0answers
61 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
votes
1answer
42 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 ...