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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3answers
12k views

How to add two IPv6 dns-nameservers into /etc/network/interfaces?

With IPv4, I can add two DNS Name Servers without any problem, like this: "dns-nameservers 8.8.4.4 8.8.8.8" Then on my resolv.conf I got: nameserver 8.8.4.4 nameserver 8.8.8.8 BUT, it does ...
0
votes
1answer
1k views

Ubuntu 12.04: bind9 does not want to start (Permission denied)

I am trying to start bind9 with no success. The error seems to be related to permission but I just cannot find the cause. root@server:~# /etc/init.d/bind9 start Feb 18 20:42:24 server named[2974]: ...
3
votes
3answers
205 views

remove isp-provided dns

My isp provides a dns service; but unfortunately they do block certain sites. I would like to use opendns or google; but it seems like it doesn't work. I have set up a wired connection; given a ...
1
vote
1answer
107 views

DNS fails intermittently in 13.10 after update

After update of the following packages: https://gist.github.com/xgdgsc/d52ab6a05adafb152221 I get intermittent DNS failure for less than 1 min every a few minutes. At the same time, other devices ...
2
votes
1answer
953 views

How to use custom DNS server for selected domains only?

There are quite few nice DNS service providers that do region unblocking and advertisement blocking. But I'm not too fond of sharing all my DNS queries with them. How I can use their DNS services ...
2
votes
0answers
4k 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] ...
6
votes
2answers
6k views

How to flush DNS in Ubuntu 13.10?

We recently moved our website to a new server. But after changing the NS (name server) records, I can't access my website. The hosting provider said we need to flush the DNS settings in order to see ...
3
votes
1answer
66k views

connect: Network is unreachable? - ping

When I attempt to ping google's dns or any outside the network I get connect: Network is unreachable? I can't update either which I put down to this I am new to networking... And Ubuntu. But these ...
39
votes
2answers
222k views

How to flush dns in ubuntu 12.04? [duplicate]

how to flush dns of Ubuntu 12.04 LTS (GNU/Linux 3.2.0-23-generic x86_64) have tried many things form here and here also but nothing is working
0
votes
1answer
3k views

ping: unknown host

Since few days, my dedicated server (Ubuntu 13.04) is no longer able to ping or connect to my NAS through DNS (hostname -> kr1.synology.me ) . The IP address ( 178.83.88.248 ) address against , is ...
4
votes
1answer
3k views

Can't resolve windows domains in local network

I've installed ubuntu on my computer at work because I think it is a perfect system for work which I do but I got some issues. I can't resolve domains from windows DNS server. Basically, we have two ...
0
votes
2answers
398 views

How may I restrict accesing apache using server IP address?

I have a server. I installed and configured Virtualmin/Webmin on it. Also I added three domains and configured almost 100% correct all DNS records. My big question is how I restrict accessing website ...
0
votes
2answers
932 views

DNS/mail confusion “No MX or A records”

I'm attempting to send mail from a remote email account to my postfix smtp mail service on my local network. Everything works fine on the local network and users can freely exchange mail between one ...
1
vote
1answer
74 views

Correct DNS records?

I just got a VPS (2 CPU, 2 Gb RAM, 40 GB SSD). I've downloaded and configured Virtualmin/Webmin. I have two domain names nedegroup.com and nutrizzio.com registered through godaddy. With nedegroup....
1
vote
1answer
256 views

Bind 9 problems

Can anyone evaluate my bind zone files and tell me where I'm going wrong? This is my first time writing zone files, so something is probably wrong. I'm using Bind9. After I write these zone files, I ...
2
votes
0answers
163 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 ...
0
votes
2answers
56 views

How do I tell my internal IP to send to my external IP?

I have set up everything necessary for a minecraft server, I have a DNS client with ddclient which is sent from helloworld.dyndns.org to my external ip I have an static internal IP but there is a ...
1
vote
2answers
5k views

Ubuntu Bind9 set up and resolv.conf

I found this tutorial the best I've come across and it works! Well done although I can't vote and comment on it due to my site privilege as yet. How do I do a complete BIND9 DNS Server Configuration ...
2
votes
0answers
938 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 ...
0
votes
1answer
126 views

How do I make a DCHP server?

I want to finish making a minecraft server (TCP/UDP) I already have a system that uses a private ip of 192.168.0.9 And a DNS on it that uses the public ip of 2.220.217.108, then redirects to it from ...
1
vote
1answer
625 views

How do I setup BIND9 and VirtualBox so that my local machine can access my domain names?

I have a complicated setup. And it makes me a bit confused about how I should setup my server, BIND9, and my Mac OS X. So here it is. I have a Mac that is connected to the internet via WiFi. I have ...
1
vote
1answer
602 views

Host purchased domain name in apache2 ubuntu server

I have been looking for a solution to this for months with no luck so here goes. I installed the Ubuntu server 13.04 (since upgraded to 13.10) on an old dell e510 and installed apache2. Also I ...
0
votes
1answer
355 views

Squid error on bind9 start

I'm getting the following error after a bind9 update when I restart bind9 on my 12.04 LTS server: root@server2:/etc/bind# service bind9 restart * Stopping domain name service... bind9 ...
0
votes
1answer
108 views

How can I specify or query the order DNS servers will be queried?

For some reason I am not hitting the DNS server I am expecting to hit. I have a wireless connection with a VPN on top of it. I have set both of the connections to use a specific set of DNS servers (...
1
vote
4answers
4k views

DNS Resolution fails, and /etc/resolv.conf isn't persistent, how can I force the use of certain DNS servers?

I have this persistent and annoying issue. When I first boot up, my desktop can't resolve any DNS names unless I edit the /etc/resolv.conf file and remove the entry for name-server 127.0.0.1 and ...
0
votes
1answer
604 views

Dynamic DNS advice for a home server on a .co.uk domain

I have the following setup: A home server running Ubuntu Server 12.04 A D-Link DSL-2780 capable of Dynamic DNS routing to www.dyndns.org, www.no-ip.com, zoneedit.com A domain purchased with Gandi....
0
votes
1answer
122 views

Is it possible to setup multiple Virtual Hosts with one ip/domain?

Is it possible to setup multiple Virtual Hosts with one ip/domain? We have a single domain (example.com) pointing to our server at ip (123.123.555.555). At location 123.123.555.555 we require the ...
2
votes
1answer
6k views

Set fully qualified domain name on EC2 instance

I am trying to set a fully qualified domain name on EC2 instance. I have set CNAME entry in Route53, so when I go to sync1.staging1.mycompany.net, it resolves to the correct instance. What I have ...
-1
votes
0answers
97 views

Ubuntu12.04 dns resolve error [closed]

I have two dns nameservers in my /etc/resolv.conf file: nameserver 10.10.255.3 nameserver 10.10.103.123 I configured a domain name "*.cloudstack.cf.test" in dns nameserver 10.10.103.123. Then I use ...
2
votes
1answer
1k views

Screwed up DNS settings in 13.10

When I run nslookup internal.foo.com I get Server: 127.0.1.1 Address: 127.0.1.1#53 ** server can't find internal.foo.com: NXDOMAIN For some reason, I am not getting the 172.17.51....
0
votes
1answer
553 views

Wifi Hostspot setup for Cable Modem Connection

I have a broadband connection through my ISP (Hathway), using a cable modem. I wish to share the internet connection to my laptop, and the phone. Refer to this configuration guide at 12.10 Wireless ...
0
votes
2answers
535 views

setup norton dns in ubuntu 12.04

I want to setup Norton DNS for my Ubuntu 12.04 for all network connections? How can I setup the DNS servers? The DNS are: Preferred DNS: 199.85.126.20 Alternate DNS: 199.85.127.20
2
votes
3answers
7k 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 ...
0
votes
1answer
656 views

How to connect Ubuntu to University LAN (Windows, Static IPs) to use Internet?

I have always been a Windows user, and this is the first time I have installed Ubuntu 12.04. After installing Ubuntu, I am not being able to access college internet through my laptop. We have a wired ...
-1
votes
1answer
77 views

Problems loading yahoo and others

I have been having issues with several websites saying "server not found", and I have ruled out proxy issues as the cause. From what I have found while looking for assistance, my problem likely lies ...
0
votes
1answer
174 views

How to send e-mail as a domain name?

I would like to create an ubuntu webserver ( with Postfix on it ) to send e-mails to different users from a static domain name; website.com I do have access to the following DNS records website.com ...
2
votes
3answers
5k 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 ...
2
votes
2answers
150 views

Web Hosting Management Package

I want to host multiple domains on my Ubuntu VM. Is there any package like Lamp to handle DNS, Email, Apache and other needed softwares for a web server? I'm looking for a software like Plesk and ...
1
vote
1answer
3k views

What is the preferred way to setup resolvconf on Ubuntu in ec2?

I had been using Ubuntu 10.04.3 or 11.04. In either of these versions, hostnames like ec2-123-45-6-7.compute-1.amazonaws.com would resolve to a private in the 10.0.0.0/8 range. After upgrading to 12....
0
votes
1answer
3k views

Can't Ping External Network on Ubuntu

I installed BIND on Ubuntu and nslookup is successful, pinging my hostname is successful, but pinging an external site (i.e. www.google.com) does not work. I receive the error message: ping: unknown ...
0
votes
2answers
715 views

How can I use a local DNS server?

I need to test a few websites on my local network. I've already setup a DNS server with bind9 for my internet domains, and that works. I can also add a few domains to the /etc/hosts file, so I can ...
0
votes
1answer
281 views

DNS Issue with IP Forwarding

I have an Ubuntu box running Ubuntu 12.04 LTS server edition, which acts as a DHCP server and is also the gateway for my network. IP forwarding is turned on. Additionally, the server acts as a ...
1
vote
1answer
431 views

SAKIS 3G - Use of Google DNS

I am using UBuntu 12.04 LTS and I am using SAKIS 3G script to connect to my 3g wireless modem, i want to use google DNS by default , i don't know, how to use google DNS in sakis3g script. In native ...
0
votes
1answer
195 views

Cannot access internet until visited once in an IP with browser, DNS-problem?

Just installed Kubuntu 12.04 on Acer Aspire 5738ZG. Wireless HW: lspci -k 03:00.0 Network controller: Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) (rev 01) Subsystem: Foxconn ...
0
votes
1answer
3k views

Can't set up IMAP on a working email server

I've been trying to set up my local mail server using this tutorial on my domain Mydomain.me. I got to the point where I can successfully receive mail send to my address but I can't set up an IMAP ...
1
vote
1answer
2k views

Can't resolve local hosts

To start with, my Linux or networking knowledge is fairly basic, so it's probably best to assume that I know nothing. I've been trying (for my own furtherance) to put together some sort of home ...
3
votes
1answer
11k views

How do I remove localhost nameserver from resolv.conf

Currently my /etc/resolv.conf reads: nameserver 127.0.0.1 nameserver 10.255.0.101 nameserver 10.255.0.11 and I want it to instead read: search [my domain] nameserver 10.255.0.101 ...
0
votes
1answer
366 views

Wifi does not work with internet

I just cretaed a dual boot Windows/Ubuntu. My Wifi works properly in windows, but it does not let me go on the Internet when in Ubuntu. DHCP seems to work since I apparently received a 192.168.1.3 ...
8
votes
4answers
38k 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 ...
0
votes
2answers
52 views

Can't connect to any hostnames

I am trying to install tasksel via apt-get and then apt-get install tasksel but in both of these processes I get errors and it doesn't install. I have tried pinging the Ubuntu archives and common ...