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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24 views

How to fix transient dns resolution errors?

I'm running into an issue with dns resolution failing for no reason, for example: ssh: Could not resolve hostname bitbucket.org: Name or service not known. When I retry a command, eventually the ...
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1answer
180 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 ...
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87 views

Ubuntu MAAS DHCP working DNS Not working

I setup Ubuntu 14.04 MAAS on one server. I setup interface to manage DHCP and DNS via the Cluster interface. DHCP is working. But, DNS is not! When I try to add another node, it is doing PXE boot, ...
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69 views

Ubuntu maas DNS Node not connected to internet

I have a Ubuntu MAAS Region and Cluster Controller on one Server. It is running DHCP Server as well. MAAS Cluster interface - "Manage DHCP and DNS" did not start a DHCP Server. So, I had to manually ...
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1answer
209 views

override dns nameserver

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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41 views

Ubuntu Thunderbird doesn't send anymore all of a sudden (T-Online, SMTP-Error), wrong DNS-Records?

so, here's the thing: an ubuntu-machine (all of a sudden) cannot send emails anymore (using Thunderbird), receiving emails still works. Details: Because the pc has a really weak VGA, I couldn't ...
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0answers
156 views

How to set multiple nameservers in /etc/resolv.conf which sticks on reboot?

Ubuntu 14.04 Server edition only displays "nameserver 127.0.0.1" in "/etc/resolv.conf" on each reboot if the dns-nameservers in "/etc/network/interfaces" contains 127.0.0.1 and some other DNS such as ...
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36 views

Zentyal PDC on MAAS

OK, so I may be smoking crack here, but feel free to tell me... ;-) I currently have a server running Ubuntu 12.04 LTS and Zentyal 3.3, with the latter configured as my primary domain controller ...
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1answer
47 views

How to stop DNS attack in dns server [closed]

My DNS server is receiving hundreds of query request in every minutes from unknown users. How can I stop this?
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1answer
65 views

Set up NGINX and bought a domain. How to connect the two? [closed]

I have set up nginx on my vserver and it seems to be working properly. I also purchased a domain at nic.md Now it's asking me for NS host names and addresses. Googling did not help much. Do I need to ...
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0answers
40 views

ubuntu Server 12-04 can access lan but not internet [closed]

My Ubuntu server stop going to Internet, I can ping the server from the LAN but the server do not go to the Internet. ifconfig; br0 Link encap:Ethernet HWaddr 00:10:18:77:5e:46 inet ...
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2answers
1k 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
42 views

How to make rdnssd honor DNSSL from radvd?

My radvd.conf have the following lines: ... RDNSS 2001:4860:4860::8844 2001:4860:4860::8888 { }; DNSSL domain.com.br { }; ... All Mac OSX IPv6 clients recognizes that option and my domain appear at ...
1
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1answer
49 views

Static ip but dynamic nameservers?

Trying to change nameserver' settings for a Ubuntu-13.04 server I came upon this situation! /etc/network/interfaces : # This file describes the network interfaces available on your system # and how ...
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0answers
85 views

Smart DNS Server configuration on my Ubuntu VPS

I need to configure Smart DNS Proxy Server on my Ubuntu VPS so all people can connect to my VPS DNS and watch website content like overplay. I need expert help and detailed steps for how to get ready ...
1
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2answers
132 views

why does the “host” and “nslokup” command show the wrong IP?

On my Ubuntu 12.4 these work fine: $ hostname my-machine-XX ping `hostname` ping my-machine-xx (192.168.0.69) icmp_req=1 ttk=64 time=0.043 ms But host and nslookup return the wrong IP address: $ ...
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0answers
95 views

error in named configuration

I am getting the following error while starting named service after configuring dns. Pls help [root@server ~]# service named start Starting named: Error in named configuration: zone ...
1
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1answer
94 views

Subdomain Configuration on Ubuntu nginx Server [closed]

First of all, I'm sorry for my bad English. I'll try to explain my aim as much as possible. I'm using a 2 Core and 2 GB memory VPS with 1 dedicated IP address from Digital Ocean for my project. I'm ...
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0answers
1k views

Ubuntu Server 14.04 LTS - Default gateway and DNS different to Laptop network settings

I have been having trouble setting my Ubuntu server network settings. Both my laptop and server are connected to my home router, laptop via wifi and router via ethernet, router address is ...
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0answers
85 views

DNS (caching, zones) in 14.04 not working correctly

trying to get DNS working locally. I have a client VM that is a static IP and pointed to the local nameserver (.250) via /etc/network/interfaces. Both VMs are set to NAT, which I suspect may be an ...
1
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1answer
66 views

Problem Configuring DNS on ubuntu server running as a virtual machine

I am running "ubuntu-14.04-server-amd64" server as a virtual machine via virtual box on my MAC OSX 10.9.X. I am trying to learn how to configure DNS via linux. I crawled websites for continuously for ...
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1answer
23 views

Send e-mails from a server, preventing from being blocked by anti-spam [closed]

I have a domain that points to server A. There is an 'a' entry in the DNS table of this server pointing to a server B. My website visitors will see the page hosted in the server B, not A. MX entries ...
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3answers
110 views

Error message; [IP]in-addr.arpa has no PTR record: [duplicate]

I'm trying to figure out how to find the hostnames of computers on the LAN network. I put in the known address of a computer, but I'm getting an error I don't understand. ...
0
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1answer
95 views

bind fatal error cant open custom log

I have been having problems with bind9 on 14.04 LTS sudo service bind9 start produces next log May 20 21:47:46 c1 named[1110]: starting BIND 9.9.5-3-Ubuntu -u bind May 20 21:47:46 c1 named[1110]: ...
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1answer
40 views

DNS issues. Why and how to resolve?

I had been running internet via my USB modem and things were pretty well till last week. From then, I wasn't able to access websites or any net service, though applet shows network is connected. ...
0
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1answer
49 views

possible DNS problem unable to connect to us.archive.ubuntu.com

I just upgraded my ubuntu server via command line to version 12.04. I was on 11.10, so when I upgraded I have to switch the sources in source.list to the old-releases.ubuntu.com source. Everything ...
0
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1answer
2k views

How to create and configure DNS Server in Ubuntu 14.04 LTS Server

How to change the name of localhost to custom name which is available to other users in lan As the extension of my previous question i want to know how to implement DNS Server and configure it. In ...
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0answers
93 views

DNS Configuration Questions

The System: Ubuntu Server 12.04 LTS The system has the Ethernet interfaces eth0 and lo Background: So I installed and configured dnsmasq on my system. dnsmasq somehow managed to update ...
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0answers
18 views

Global DNS change

can someone help me change my DNS server globally without having to do it manually thru network manager for every connection I have. I want to use OpenDNS, whether its at home, uni, wifi hotspot, ...
0
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3answers
2k views

ping: unknown host google.com in UBUNTU SERVER [duplicate]

I use Ubuntu Server 12.10. Why if I try: ping google.com ping bitbucket.org or any other website I have: ping: unknown host google.com ping: unknown host bitbucket.org EDIT: ...
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0answers
481 views

Not pinging with host-name and can't ssh using hostname [duplicate]

I have setuped a DNS server in Centos6.5 and its working with every client machines other than ubuntu, now i have issue with ubuntu While im trying to ping from desktop machine to DNS server as ping ...
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0answers
248 views

Ubuntu 14.04 on VMWare DNS Not Working

For reasons, I don't understand, my Internet is not working in Ubuntu 14.04 running via VMware. In all probability I think it's a DNS problem as I'm also not able to ssh into my servers. Some ...
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1answer
33 views

Error starting up dns forward zone file

I am working setting up my DNS, but i am getting errors in: tail -f /var/sys/log. I have setted up a static ip-adress in networks: 192.168.10.1 May 11 18:13:54 s180368 named[3582]: command channel ...
1
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1answer
171 views

Ubuntu DNS server working, but getting errors in syslog

it's my first question to the forum here, so please go easy on me. I'm a Linux newbie and I experimented with setting up my own Ubuntu server (server name : araliya, domain: autun.hom, IP: ...
3
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0answers
60 views

VM can't ping LAN name but sees it via nslookup

I am trying to connect to a network resource from my 10.04.4 VM (VMware Fusion) but the destination is unreachable by name. What is weird is that the name is visible in DNS: >nslookup my.name ...
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1answer
261 views

How to remove a DNS nameserver on Ubuntu 14.04

So I just installed Ubuntu 14.04 on my laptop. Firefox has been incredibly slow, and I suspect my DNS settings to be the issue. When I do a cat /run/resolvconf/resolv.conf here is what I get: ...
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0answers
215 views

With MAAS set to manage DNS on a subnet on a private IP range, why do only some nodes have DNS entries?

I'm trying to set up OpenStack on MAAS, using trusty. I have a network between these machines all bridged/switched together. I have set up MAAS at 192.168.7.200, I have a Juju client machine at ...
3
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1answer
213 views

How can I redirect *.localhost to 127.0.0.1 in Ubuntu 14.04?

I used to be able to make foo.localhost, bar.localhost, etc. resolve to 127.0.0.1 by adding address=/localhost/127.0.0.1 to /etc/dnsmasq.conf But dnsmasq.conf doesn't exist in Ubuntu 14.04, and ...
0
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0answers
26 views

Append DNS Suffix - Wifi vs Physical

So a while back I changed my DHCP config to appended a dns suffix automatically. I modified the.. /etc/dhcp/dhclient.conf ..config file and added the a line.. append domain-name "mydomain.net"; ...
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0answers
126 views

wwan / qmi_wwan.ko / network IP config

I am trying to get a new wwan module working on Ubuntu 12.04. I am relatively new to modern linux - I wrote linux drivers "back in the day". These days I primarily write OSX drivers for wwan modules ...
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1answer
31 views

Virtualmin DNS problems

i'm pretty new to Ubuntu and Virtualmin and I got a problem. I'm creating a webserver with virtualmin local use only (it's running on virtualbox) so the ip is 10.0.2.15 and I'm trying to make the DNS ...
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0answers
32 views

BIND9 as authoritative server, but caching/forwarding--without AXFR

I'd like to setup a DNS server that acts a secondary authoritative server in case the primary goes down. Normally, that'd be easy to accomplish with AXFR, but I want it to be secondary to CloudFlare, ...
0
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1answer
105 views

Internet (both wifi and LAN) Stop working after some time

I have installed Ubuntu 12.04 on Dell N4050. But there is a problem with my internet. It first works fine. But after sometime about 3 to 4 min, it stop working. I tried to ping with server, default ...
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0answers
59 views

Prevent some interfaces from editing resolv.conf

I am trying to connect a camera to the internet. To do this, I have two devices: lte0 and wlan0. The camera (Sony NEX 5) is controlled over wlan0, and lte0 is the LTE connection. My ...
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2answers
806 views

Slow DNS lookup after upgrading to 14.04

After upgrading my Kubuntu to 14.04 from 12.04, I got extremely slow DNS lookup in Firefox and Thunderbird. I have checked the communications with Wireshark. Launching e.g. http://vs.hu in Firefox ...
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2answers
252 views

How can I stop my server being an “open DNS resolver”?

This morning I got a letter from my ISP saying that my Ubuntu Server (13.10) can be used as an "open DNS resolver". They propose 3 possible solutions to fix this problem: Limit access to recursive ...
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1answer
47 views

Where to set my DNS on Ubuntu 64 bits?

On Ubuntu 32 bits I decalred my DNS in /etc/resolv.conf Now that I installed Ubuntu 64 bits I do not find this file. I edited /etc/network/interfaces and /etc/hosts but there is no /etc/resolv.conf. ...
6
votes
1answer
447 views

Network only using one DNS when connected to VPN

My company has a VPN that I need to connect to. In OSX, I do this by using openvpn with the following configuration: client dev tun proto udp remote <GATEWAY_ADDRESS> <PORT> resolv-retry ...
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2answers
57 views

Ubuntu internet connection problem

I installed Ubuntu on my laptop. Here are my internet settings: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 10.1.17.10 /*this is my IP @ddress*/ netmask ...
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1answer
244 views

How to resolve the DNS locally when there is a proxy configured?

If I configure the proxy, under Settings -> Network -> Proxy, and then try to access "http://google.com", the name resolution (IP of google.com) will happen there, at the proxy server but... How can ...