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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4
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68 views

Ubuntu 14.04 Server Cant Connect To Internet

Upgraded my server's software from Ubuntu 12.04 to Ubuntu 14.04 and now the server cannot access the internet. I can ping devices on my LAN, including my modem. When I try to ping any site on the ...
3
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55 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 ...
3
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0answers
424 views

DNS servers not correctly set in VPN

I have to use an OpenVPN network to work from home, and I occasionally have problems getting DNS to resolve. The problem comes and goes, and I can't reproduce it reliably. I took the OpenVPN config ...
2
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0answers
372 views

Why would having multiple nameservers in resolv.conf cause nslookup to fail, but a single entry work?

I have a resolv.conf on ubuntu 12.04 that looks like this (IP addresses have been changed to nonsense): search internal.mydomain.com nameserver 205.169.169.193 That nameserver is not authoritative ...
2
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719 views

How do I set up a reverse dns on Ubuntu 12.04 VPS

As far as I can remember when setting up my VPS and mail server on it, I had configured the mail server correctly. However, a few of my clients get SMTP errors, host mx1.zonnet.nl[62.58.50.9] ...
2
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0answers
68 views

How to access Amazon EC2 instance from Ubuntu 13.10?

I have an Amazon EC2 (Windows) instance which has been created for me and I have public DNS, public IP and the public key. I would like to RDP to this instance from Ubuntu 13.10. I have recently ...
2
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0answers
485 views

How to host a website using Ubuntu 13.04 on my local machine

How do I do a complete BIND9 DNS Server Configuration with a hostname? Thank You so much for this wonderful answer. Although the talk here had been more on the lines of setting up a home based server ...
2
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165 views

MaaS dhcp cannot be detected at node installation

I am installing a MaaS Ubuntu 12.04 by ISO with virtualbox as the host machine. I have a problem on the cluster management during the process of adding the node. The node cannot detect the dhcp ...
2
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143 views

Ubuntu FQDN Not pingable on Windows Network

My problem is that my Ubuntu machine seems to have its FQDN setup correctly, yet I cannot ping the FQDN from a windows machine on the same network. Output of various commands on my Ubuntu machine: ...
2
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0answers
417 views

I am unable to use internet in no proxy mode

I am using Ubuntu 10.04 (installed using Wubi in Windows 7) and when I change my proxy settings to no proxy (without any proxy server), I am unable to access any page (using Firefox or Google Chrome) ...
2
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0answers
1k views

Postfix cannot resolve local IPs from Name Server

I currently have a server running "Ubuntu Server 12.04.1 LTS" installed with Postfix Bind 9 (Slave) The postfix cannot seem to resolve my internal IPs to Name Server (PTR) entry I have within ...
1
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17 views

dig +trace returns my DNS IP

When I'm trying to execute dig +trace command, output is the following: $ dig +trace google.com ; <<>> DiG 9.9.5-3-Ubuntu <<>> +trace google.com ;; global options: +cmd ;; ...
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75 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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195 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 ...
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57 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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0answers
174 views

dnsmasq unrecognized command

I'm attempting to run a script which calls service dnsmasq restart service dnsmasq restart dnsmasq: unrecognized service No matter what I call for dnsmasq, it gives me the "unrecognized service" ...
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182 views

DNS Look up failed - Ubuntu 12.04

I have this problem, which seems to be a 'common' problem on Ubuntu. When I try to open some pages on chromium I get the "DNS look up failed" error. (It doesn't say exactly that on Firefox but it's ...
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54 views

Update not working, nothing is installing in ubuntu 12.04

I am very much new to Linux. I'm using Ubuntu 12.04. The problem is that I'm unable to install anything on it. Initially when I installed it, it was fine. But I was having some dependency problem with ...
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0answers
171 views

(Solve) Connecting Ubuntu Server 12.04 to public network (internet access)

I have installed Ubuntu Server 12.04 on my computer. I want to setup my dedicated server for web server and also I already have my own domain for web hosting company. I followed these instructions ...
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0answers
166 views

TSQL connection refused - host command DNS resolve issue in local network

I am using VMWare Starter and running 2 guest VMs, Ubuntu and Windows XP Professional. The host system is Windows 7. Windows XP Professional hosts MSSQL database, Ubuntu talks to it using FreeTDS. ...
1
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89 views

dnsmasq Not Serving Up Hostnames on hostapd Network

My goal is for clients to be able to connect to my wifi access point and access services on it using a hostname. Currently clients can connect and get assigned an IP by DHCP, but they cannot resolve a ...
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82 views

Network Manager VPN doesn't update resolve.conf with nameserver

When I connect VPN via NetworkManager, I can't access resources by domain name. But it's ok using IP. Seems like NetworkManager isn't updating resolve.conf with VPN nameservers. I've visited and tried ...
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53 views

Network Problems after installing wireless USB Adapter

some time ago I tried to install an Edimax 150Mbps Wireless IEEE802.11b/g/n USB Adapter for my Lenovo T60 for better wifi performance. It didn't really work out properly, at least I had the feeling ...
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124 views

How to block my DNS on all outhgoing sites except for one IP address?

I want to block my DNS on all outhgoing sites except for one IP address on one computer? How do I achieve this?
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554 views

How to set ubuntu to reach DNS server through IPv6

I have the following setup: Ubuntu 13.04 with wired connection to router and Debian server running in VirtualBox under Ubuntu (with bridged network adapter). I installed and configured Bind9 on ...
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427 views

Setting up web hosting at home with ubuntu server and pointing it to actual domain

Hi I have already got a domain name and installed ubuntu server along with bind9. I want to configure it so that it points to my domain on internet. My Current Environment is as below: installed ...
1
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0answers
71 views

Weird DNS behavior

I got hold of a really cute little PC, that I want to fiddle around with as a little side-project. It has a normal LAN connection via Ethernet and the /etc/network/interfaces configuration is # ...
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242 views

How to set up a DNS server on ubuntu server?

This DNS server will use to access a web server/ mysql server. Scenario: DNS Server of 192.168.0.0/24 network - 192.168.0.2 domain name(dn): my.site.com redirect to 192.168.2.1 (webserver/mysqlserver) ...
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1k views

Setting up DNS and/or Nameserver on VPS

I currently have a VPS and two domains (.com/.net) at an external registrar. My registrar does have DNS controls. I have a forwarded email (on my .net) through my registrar. I have installed and used ...
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444 views

Intermittent wireless internet connection in Ubuntu 12.04

I recently upgraded from 11.10 (Oneiric Ocelot) to 12.04.2 LTS (Precise Pangolin) (64 bit version) and suddenly my wireless internet connection has become intermittent. For example, when I am loading ...
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127 views

Content Delivery Network

I have a project that i need to setup Content Delivery Network on Ubuntu, That involves like Geo Dns structure, Fail over and High availability So i am looking if some one help me that where should i ...
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175 views

how to force ssl with default-ssl without DNS?

I know this has been covered everywhere, and I've actually made this work on another server, but I can't seem to get it to work. I have this RewriteEngine on RewriteCond %{HTTPS} !=on ...
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61 views

Domain name problem with VPS

I want to host a website on a VPS. I have everything working except for domain name resolution. The VPS has no control panel. It just has a CLI. I did go to my domain registrar which provides DNS ...
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0answers
267 views

Internet does not work on Windows 8 pre-installed laptop

I'm booting into ubuntu using a LiveUSB on my Windows 8 Sony Vaio laptop. It connects to the wi-fi but nothing works. I checked the proxy settings on the browser. Even when I try to ping google.com ...
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0answers
260 views

Ubuntu Server 12.04: No internet through switch, help

I've been using Ubuntu Server 12.04, upgrading to 12.10 once I figure this out, on my IBM xSeries 335 (name: Server1; ip: 10.0.0.50) as a web server. I recently got a computer from a family friend ...
1
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151 views

Opendns setup failed. How to fix it?

I have problems trying to configure OpenDNS. I have contacted OpenDNS support but they did not answer. I cannot access websites like Twitter and Facebook. I tried welcome.opendns.com (did not ...
1
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0answers
313 views

Creating DDNS with udhcpd and PowerDNS

Server OS = Ubuntu 12.0.4.1 LTS Desktop OS = Windows 7, Ubuntu 12.04.1 LTS DHCP Server daemon = udhcp DNS Server daemon = powerdns (using mysql as the backend) I am very new to the Linux scene, ...
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220 views

Internet connectivity issues

I'm on 12.04, I upgraded a month ago from Windows 7 on my Sony VAIO. Everything is great except after the upgrade, I encountered Internet connectivity issues. When browsing the web or loading ...
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586 views

Ubuntu 12.04 desktop ISO CD boot under VirtualBox, no network

I boot the Ubuntu 12.04 desktop ISO CD with VirtualBox, but get no DNS. I.e., eth0 has its IP address, but DNS resolving always fails. I tried VirtualBox bridged networking, then NAT, but for both ...
0
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0answers
5 views

DNSCrypt-Proxy specific usage

I have some specific usage questions about DNSCrypt-Proxy. I followed a guide and ended with the command dnscrypt-proxy --daemonize –user=dnscrypt Without any further switches does it default to ...
0
votes
0answers
10 views

redirect wrong dns queries to url address?

I have local machine with bind DNS server and i need to redirect wrong dns queries address name to specific address name or web site url like google any suggestions ?
0
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0answers
7 views

Only resolve DNS on VPN Server

I installed pptpd but my connection is too slow and i need use Google DNSes (8.8.8.8,8.8.4.4) on my Android without root for mobile network (not Wi-Fi). How can i configure my ubuntu server for just ...
0
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0answers
22 views

Ubuntu 14.04 LTS DNS

Since the introduction in Ubuntu 12 of a new way to handle DNS with the resolv.conf file https://www.stgraber.org/2012/02/24/...-ubuntu-12-04/ I need to clarify something Inside this article As ...
0
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0answers
11 views

Ubuntu Zpanel Unable to receive e-mail

I am able to send e-mail from my zpanel mailboxes but am unable to receive any e-mails. I get this error from gmail when I try to send e-mail to my mailboxes: mail exchanger not found. My domain ...
0
votes
0answers
14 views

Domain name server not working properly

My internet was not working in the browser or the terminal. After some inverstigation, I've found out that the problem is with the DNS. I have deduced this because ping 8.8.8.8 reports 0% packet loss. ...
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15 views

DNSMASQ Error in Syslog

I was browsing my syslog and I found this error:- NetworkManager[984]: [1407179609.489726] [nm-dns-dnsmasq.c:393] update(): dnsmasq not available on the bus, can't update servers. ...
0
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24 views

how to find dns servers that dnsmasq is pointing to

I cannot find a list of dns servers that dnsmasq is pointing to. nm-tool only gives the internal "DNS: 192.168.1.1" I want the upstream external dns servers that this is pointing to. I am on ...
0
votes
0answers
20 views

DNS-Nameservers problem

I run Ubuntu server 12.04.1 LTS Precise. If my network/interface was set on auto, the DNS works correctly. I'm able to run apt-get update and to ping various sites. When my network/interface was set ...
0
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0answers
8 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
52 views

Not resolving DNS in Virtualbox guest OS

I'm running Ubuntu as a guest OS in VirtualBox within a Windows 7 host. I cannot access the internet from within the Ubuntu VM. Firefox just times out. In terminal I can ping external IP addresses ...