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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2
votes
0answers
17 views

error insserv with script

I try to install Unbound with the following website: http://www.unix-tutorials.com/go.php?id=3681 I copied the script : #!/bin/sh # # unbound This shell script takes care of starting and ...
0
votes
0answers
4 views

Chrome not accessing the proper host after updating mydomain.com

I just went to my domain provider and I changed the A-record of mydomain.com. When I do ping mydomain.com I see it is accessing the proper IP address, but when I try to connect with Chrome or ...
0
votes
0answers
18 views

Redirect all traffic except DNS

I successfully setup Ubuntu server up & running. Server configuration: tun0 192.168.99.1/24 NAT Enabled Note that client able to communicate with server. ping 192.168.99.1 Now I stuck at ...
1
vote
1answer
231 views

how to setup split-dns for vpn with network-manager

I want to create a split-DNS config on a 14.04 desktop machine with both a local eth network and a VPN connection. Ie I should send DNS lookups for address ranges that are accessed via the vpn to the ...
2
votes
2answers
59 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 ...
0
votes
1answer
13 views

DNS configured in network manager but not working

I have 2 DNS configured in network manager for my connection (Selected DHCP Addresses only). The DNS are working good if used with nslookup. /run/resolvconf/resolv.conf # Dynamic resolv.conf(5) ...
-1
votes
0answers
16 views

Route 53 Amazon dns server not found

I just configured my domain on Route53, for ubtuntu server i have with public ip, as following: but when i try to go to my site, i found "server not found" error or "page is not available" on ...
1
vote
1answer
130 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
1answer
263 views

Connect cluster controller to the region controller (MaaS)

I'm trying to build a MaaS cluster and this is what I've done so far: Region Controller install ubuntu 14.10 configure interfaces configure dns apt update apt upgrade apt install ...
3
votes
4answers
139 views

Global DNS change

How do I change my DNS server globally without having to do it manually through network manager for every connection I have. I want to use OpenDNS, whether its at home, university, wifi hotspot, ...
1
vote
2answers
37 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 ...
6
votes
3answers
157 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 [ ] ...
1
vote
0answers
24 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
8 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
27 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 ...
1
vote
5answers
2k views

DNS stopped working on laptop

Was working fine then stopped inexplicably. I can ping the gateway/DNS router/firewall (Untangle) using WiFi and cable using WiCd. Network Manager does not work on this computer Firefox reports ...
0
votes
0answers
62 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
2answers
75 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
15 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 ...
4
votes
1answer
5k 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 ...
1
vote
0answers
11 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 ...
0
votes
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. ...
1
vote
0answers
10 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
23 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
21 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. ...
2
votes
1answer
51 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
48 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 ...
2
votes
3answers
3k views

Problem with Winbind/Samba

I've been having an issue on my network that has completely vexed me. I have three workstations running Ubuntu 13.04, one Windows 7 workstation, and three servers on Ubuntu Server 12.04. One of the ...
0
votes
0answers
18 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?
0
votes
1answer
394 views

customized Ubuntu 14.04 - DNS doesn't work

I've made a Ubuntu 14.04 VM, customized it a bit (apps, etc), and created an .iso via REMASTERSYS. I then made a bootable USB w/ unetbootin. The DNS works on the VM and on multiple laptops in the ...
2
votes
3answers
4k 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
votes
3answers
5k 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
2answers
8k 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 ...
2
votes
0answers
33 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 ...
8
votes
7answers
30k views

How to get the hostname from a DHCP server

I want Ubuntu to get the hostname and DNS name from a DHCP client. The default installation of Ubuntu 11.10 (Oneiric Ocelot) does not do that. The same question was asked and is unsolved on ...
0
votes
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 ...
1
vote
1answer
14 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
66 views

DNS zone file issue after upgrading from Ubuntu LTS 12.4.4 to Ubuntu LTS14.04

I have 3 dns servers. The 2nd and 3rd dns servers are slave from the 1st or primary server. All my server are running Ubuntu Server LTS12.4.4 and I would like to upgrade them to the lastest version, ...
0
votes
0answers
15 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
15 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
15 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
55 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: ...
10
votes
5answers
22k views

Why is the /etc/hosts file not working?

I have been having problems with this for a while and have tried everything I know, so I figured it was finally time to ask for some help. Any edit I make to /etc/hosts just doesn't work. Example: ...
2
votes
2answers
5k views

DNS issues on Ubuntu 12.04 with OpenVPN

I followed this guide to setup openvpn on my home network. I accidentally downloaded ubuntu 12.10 at first and without noticing, I went ahead and followed the guide... Then I did some stuff from ...
0
votes
0answers
25 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 ...
0
votes
0answers
20 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
50 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 ...
1
vote
0answers
38 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 ...
0
votes
1answer
41 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 ...
1
vote
2answers
105 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 ...